8. aberatie [fiz.]a.-defect al imaginii produs de un instrument optic. -b.-defect al unui instrument optic,care da imagini ce prezinta aberatii in sensul de sub a.
9. ABI (Address Bit Inversion)-
10. ABM (Asynchronous Balanced Mode) -
11. ABR (Available Bit Rate) -
12. absorbtiefenomenul retinerii de catre un corp a unei parti din energia radianta care cade pe el.
13. AC (alternating curent)curent alternativ.
14. AC (Authentication Center) -
15. ac aerian [elt.]dispozitiv instalat la bifurcatia liniilor electrice aeriene,pentru a permite trecerea prizelor de curent ale vehiculelor fara sa se intrerupa legatura cu firul aerian.
16. ac-dc (alternating current - direct current)-
17. ACA (automatic circuit assurance)-
18. ACAU (Automatic Calling and Answering Unit) -
19. Accelerometruaparat cu care se masoara, pe cale electrica,acceleratia pieselor in miscare (indicator de acceleratie).
20. accelerometru [tehn.]aparat cu care se masoara,pe cale electrica,acceleratiile pieselor in miscare.(=indicator de acceleratie).
78. alfabetul morse [telc.]grupuri de puncte si linii care reprezinta literele alfabetului,cifrele si semnele de punctuatie folosite in telegrafie si in semnalizarea optica.
79. AlGaInN (Aluminum Gallium Indium Nitride)-
80. AlGaInP (Aluminum Gallium Indium Phosphide)-
81. algebra booleana [cib.]algebra in care atat variabilele independente,cat si functiunile pot avea numai una din doua valori, notate in mod uzual cu 0 si 1.
82. algoritm Kalman (D1)algoritm de reglare ce consta in a alege aceea functie de transfer He(z) a regulatorului care sa asigure o forma data Y(z) a iesirii cand referinta R(z) are o forma impusa.
83. ALS (Advanced Low power Schottky)-
84. ALT (Accelerated Life Testing)-
85. alternator electric [elt.]generator electric de curent alternativ mono- sau poli- fazat.
98. amortizare (D1)descresterea in timp sau in spatiu a amplitudinii unei oscilatii.
99. ampermetru (D2)instrument de masurare a intensitatii curentului electric dintr-un circuit.
100. amplidina (D2)masina electrica amplificatoare, de curent continuu, cu camp transversal ( cu doua perii scurtcircuitate).
101. amplificare 1 [fiz. tehn.]operatie de marire a valorii unei marimi(intensitate sonora sau electrica,tensiune electrica etc.) folosind energie de la o sursa separata.
102. amplificator 1[fiz. tehn.]dispozitiv pentru amplificarea valorii unei marimi.
103. amplificator acordat [telc.]amplificator care amplifica teoretic numai semnalele avand frecventa egala cu frecventa de acord sau numai semnale intr-o banda ingusta de frecvente , in jurul frecventei de acord.
104. amplificator de audiofrecventa [telc.]amplificator pentru semnale audio.
105. amplificator de banda larga [telc.]amplificator la care factorul de amplificare ramane constant intr-o banda larga de frecventa.
106. amplificator de curent continuu [telc.]amplificator pentru semnale cu variatii de amplitudine foarte lente.
107. amplificator de inalta frecventa [telc.]amplificator pentru semnale de inalta frecventa.
108. amplificator de masurare [telc.]amplificator caracterizat printr-o foarte buna liniaritate,banda larga si castig constant in timp.
109. amplificator diferential [telc.]amplificator cu doua intrari si o iesire, la care semnalul de iesire e proportional cu diferenta dintre semnalele aplicate la cele doua intrari.
110. amplificator magnetic [elt.tehn.,telc.]dispozitiv la care efectul de amplificare se obtine prin utilizarea unor circuite magnetice,la care permeabilitatea relativa a materialului depinde de intensitatea semnalului aplicat.
111. amplificator operationalamplificator de curent continuucu reactie negativa care permite efectuarea unor operatii matematice cum sunt , adunarea,scaderea,integrarea si diferentierea.
112. amplitudinevaloarea maxima pe care o ia, in timp, o marime (o variabila).
113. AMPS (Advanced Mobile Phone System) -
114. AMPS (automatic message processing system)-
115. AMR (Anisotropic Magnetoresistance)-
116. AMR (Audio/Modem Riser)-
117. AMSC (American Mobile Satellite Corporation)-
118. AMSS (Aeronautical Mobile Satellite Service) -
120. analizor electronic [telc.]aparat de masurat care determina componentele spectrale ale unui semnal.
121. anclansareoperatie de conectare a unui aparat de comutatie pentru inchiderea unui circuit electric.
122. anclansare [elt.]operatie de inchidere a unui circuit electric,efectuata cu ajutorul unui aparat de conectare.
123. ANI (automatic number identification)-
124. ANL (automatic noise limiter)-
125. anod [elt.]electrod pozitiv.
126. anode spotpata anodica.
127. ANS (American National Standard)-
128. ANSI (American National Standards Institute)-
129. antenaaparat prin care se radiaza direct in spatiu (antena de emisie) sau se receptioneaza direct din spatiu (antena de receptie) unde radioelectrice.
130. antena artificialarezistenta avand valoarea partii active a impedantei pe caredebiteaza in mod normal un emitator si care se substituie acesteia in anumite masurari de putere.
131. antena artificiala [telc.]rezistenta avand valoarea partii active a impedantei pe care debiteaza in mod normal un emitator si care se substituie acesteia in anumite masurari de putere.
132. antena biconicaantena omnidirectionala alcatuita din doua conuri coaxiale, cu virfurile in acelasi punct.
133. antena biconica [telc.]antena omnidirectionala alcatuita din doua conuri coaxiale,cu varfurile in acelas punct.
134. antena de banda largaantena la care proprietatile raman practic constante intr-o banda larga de frecventa.
135. antena de banda larga [telc.]antena la care proprietatile raman practic constante intr-o banda larga de frecventa.
136. antena directiva [telc.]antena care radiaza in special in anumite directii,in care concentreaza energia radiata.
137. antena fictivacvadripol montat intre un generator de masura si un radioreceptor supus masurarii, care simuleaza impedanta antenei de receptie.
138. antifading [fiz.,telc.]dispozitiv capabil sa elimine efectul fading.
139. antiparazit [telc.]calitate a dispozitivelor care impiedica producerea efectelor perturbatoare in receptia emisiunilor de radio si televiziune.
140. antiradar [tehn.,telc.]calitate a dispozitivelor care pot impiedica voit sau perturba receptia clara a semnalelor pe ecranele radar.
141. AoE (ATA over Ethernet)-
142. AP (adaptive predictive coding)-
143. Aparat cu cadru mobilaparat in care un cadru mobil,suspendat,se roteste cind e parcurs de un curent,sub actiunea unui camp magnetic.
144. Aparat de inductieaparat care utilizeaza actiunea circuitelor inductoare fixe asupra curentilor pe care ele ii induc in piese conductoare mobile.
145. aparat electric de masurat [elt.]aparat electric care serveste la masurarea unei marimi neelectrice.
146. aparat electric [elt.]aparat ale carui principale elemente functionale sunt parcurse de curent electric.
147. aparat electrodinamic [elt.]aparat care utilizeaza actiunile electrodinamice care se exercita intre bobine fixe si mobile parcurse de curenti.
148. aparat etalon [elt.,fiz.]aparat de masurat de mare precizie , folosit pentru etalonarea unor aparate.
149. aparat ferodinamic [elt.]aparat in care actiunile electrodinamice sunt intarite prin prezenta nunor piese feromagnetice plasate de-a lungul traiectoriilor liniilor de camp magnetic.
150. aparataj [tehn.]totalitatea aparatelor care pot fi folosite intr-o anumita ramura a tehnicii sau a stiintei.
235. autotransformator (D2)transformator la care o parte a infasurarii apartine atat primarului cat si secundarului, tensiunea secundara fiind luata de la o priza a infasurarii primare.
236. AUTOVON (Automatic Voice Network)-
237. AV (Audio/Visual)-
238. AVC (arc voltage control)controlul tensiunii pe arc.
16. BACP (Bandwidth Allocation Control Protocol) -
17. BAG (Bandwidth Allocation Gap)-
18. balun (balanced to unbalanced)-
19. BAP (Bandwidth Allocation Protocol) -
20. basecom (base communications)-
21. BATT (Battery)baterie.
22. BBR (BackBone Ring) -
23. BBUL (Bumpless Build-Up Layer)-
24. BCC (Base station Color Code) -
25. BCC (block check character)-
26. BCCH (Broadcast Control CHannel) -
27. BCD (binary coded decimal)-
28. BCH (Bose-Chaudhuri-Hochquenghem)-
29. BCH (Broadcast Channel) -
30. BCI (bit-count integrity)-
31. BCI (BroadCast Interference)-
32. BCM (Boundary Conduction Mode)-
33. BCP (Bridging Control Protocol) -
34. BCS (Block Check Sequence) -
35. BCT (Bi-Directional Control Thyristors)-
36. Bd (baud)-
37. BEDO (Burst EDO, Extended Data Out)-
38. bell (BEL character)-
39. BER (Bit Error Rate, bit error ratio)-
40. BERT (bit error ratio tester)-
41. BETRS (basic exchange telecommunications radio service)-
42. BEX (broadband exchange)-
43. BGA (Ball Grid Array)-
44. BGAK (Begin Acknowledge) -
45. BGP (Border Gateway Protocol) -
46. bi-sync (binary synchronous)-
47. BIFET (Bipolar Field-Effect Transistor)-
48. BIH (International Time Bureau)-
49. BIOS (Basic Input/Output System)-
50. bipolar (D2)calitate a unor masini, aparate sau instrumente electrice de a avea doi poli magnetici sau doua contacte.
51. bipolar [electrotehnica]calitate a unor masini, aparate sau instrumente electrice de a avea doi poli magnetici sau doua contacte.
52. bipolar [elt] (D3)calitate a unei masini, a unui aparat sau a unui instrument de a avea doi poli magnetici principali.
53. bipolar [elt] (D3)calitate a unei masini, a unui aparat sau a unui instrument de a avea doi poli magnetici principali.
54. BISYN (BInary SYNchronous Communications) -
55. bit (binary digit)-
56. BIT (built-in test)-
57. BITE (built-in test equipment)-
58. BIU (bus interface unit)-
59. BJT (Bipolar Junction Transistor)-
60. BMC (Baseboard Management Controller)-
61. BNC (Baby N Connector)-
62. BNF (Backus Naur form)-
63. BOB (Break-Out-Board [BOB Card definition])-
64. BOF (Blown Optical Fiber)-
65. BOM (Begin Of Message) -
66. BOOTP (Bootstrap Protocol) -
67. BOP (Bit Oriented Protocol) -
68. Bpi (bytes per inch)-
69. bps (bits per second)-
70. BPSK (Binary Phase Shift Keying) -
71. BQFP (Bumpered Quad Flat Pack)-
72. BR (bit rate)-
73. BRI (basic rate interface)-
74. BRT (Bias Resistor Transistors)-
75. BS (Base Station) -
76. BSAP (Base Station Application Part) -
77. BSC (Base Station Controller) -
78. BSC (Binary Synchronous Communications) -
79. BSE (basic service element)-
80. BSI (British Standard Institute) -
81. BSIC (Base Tranceiver Station Identity Code) -
82. BSS (Base Station Subsystem) -
83. BST (Bosch-Siemens-Temic)-
84. BTL (Backplane Transceiver Logic)-
85. BTN (billing telephone number)-
86. BTS (Base Transceiver Station) -
87. BTU (British Thermal Unit)-
88. BUS (Broadcast/Unknown Server) -
89. BVCP (Bayan Vines Control Protocol) -
90. BW (bandwidth)-
1. c (centi (10–2), CMOS)-
2. C-E (communications-electronics)-
3. C.O. (central office)-
4. C/kT (carrier-to-receiver noise density)-
5. C2 (command and control)-
6. C3 (command, control, and communications)-
7. C3CM (C3 countermeasures)-
8. C3I (command, control, communications and intelligence)-
9. CACS (centralized alarm control system)-
10. CAD (Computer Aided Design)-
11. CADN (Cellular Access Digital Network) -
12. CAE (Computer Aided Engineering)-
13. CAF (conductive anodic filament)-
14. CAGE (Commercial and Government Entity)-
15. CAI (Computer Aided Instruction) -
16. cai de curent [lectrotehnica]ramuri ale infasurarii indusului masinilor electrice cu colector,legate in paralel prin intermediul periilor.
17. CAM (computer-aided manufacturing)-
18. CAMA (centralized automatic message accounting)-
19. CAMAC (Computer Automated Measurement And Control)-
20. CAMEL (Customized Applications for Mobile Network Enhanced Logic) -
21. CAN (Controller Area Network)-
22. CAP (competitive access provider, customer administration panel)-
23. capacitate de supraincarcare (D2)raport dintre valoarea maxima si valoarea nominala (date nominale) a unei marimi ce caracterizeaza o masina electrica , aparat sau instalatie.
24. capacitatea electricaraportul constant dintre cantitatea de electricitate Q cu care este incarcat un conductor izolart si valoarea la care se ridica potentialul sau V.
25. capacitatea electrica (C)raportul constant dintre cantitatea de electricitate (Q) cu care este incarcat un conductor izolat si valoarea la care se ridica potentialul sau (V).
79. CdSfotorezistenta cu sulfura de cadmiu utilizata la dispozitivele de masurare a luminii.
80. CDT (control data terminal)-
81. CDU (central display unit)-
82. CE (Chip Enable)-
83. CEI (comparably efficient interconnection)-
84. CELP (code-excited linear prediction)-
85. celula de inalta tensiune [electrotehnica]unitate a echipamentului de distributie de inalta tensiune din statiile si posturile de transformare,care contin aparate electrice apartinand, de regula unui singur circuit.
86. CEMF (Counter ElectroMotive Force)-
87. CEP (circular error probable)-
88. CERDIP (Ceramic Dual Inline Package)-
89. CESoP (Circuit Emulation Services over Packet)-
90. CF(Curved Field)curbura de camp.
91. CFB (Call Forwarding Busy) -
92. CFC (Chlorofluorocarbon)-
93. CFE (contractor-furnished equipment)-
94. CFF (Conductive Filament Formation)-
95. CFI (Common Flash Interface)-
96. CFM (Cubic Feet per Minute)-
97. CFNR (Call Forwarding No Replay) -
98. CFU (Call Forwarding Unconditional) -
99. CGA (Color Graphics Adapter)-
100. CGI (Common Gateway Interface) -
101. cgs (centimeter-gram-second)-
102. CGW (Customer Gateway) -
103. CHAP (CHallenge Authentication Protocol) -
104. CHI (Card - Host Interface)-
105. ChR (channel reliability)-
106. CHS (Cylinders, Heads and Sectors)-
107. CI (Cell Identifier) -
108. CIAS (circuit inventory and analysis system)-
109. CIC (Circuit Identification Code) -
110. CIC (content indicator code)-
111. cicloconvertor (D2)mutator care transforma direct , fara circuit intermediar de curent continuu, energia de curent alternativ de anumiti parametri (numar de faze, frecventa) in energie de curent alt. de alti parametri.
112. cicloconvertor [electrotehnica]mutor care transforma direct,fara circuit intermediar de curent continuu,energia de curent alternativ de anumiti parametri in energie de curent alternativ de alti parametri.
113. CIF (Common Intermediate Format) -
114. CIFAX (ciphered facsimile)-
115. CIFF (Camera Image File Format)fisier de stocare a imaginii digitale utilizat anumiti producatori de aparate.
116. ciphony (ciphered telephony)-
117. CIR (Carrier-to-Interference Ratio) -
118. CiR (circuit reliability)-
119. circuit electric (D2)sistem de medii prin care poate circula curentul electric.
120. CISC (Complex Instruction Set Computer)-
121. CIT (Computer Integrated Telephonie) -
122. cititor (D1)periferic de uz general destinat introducerii de informatii intr-un sistem de prelucrare a datelor.
123. CKE (Clock Enable)-
124. CLASS (custom local area signaling service)-
125. CLASS (Custom Local Area Signalling Service) -
158. comutatie (D2)conectare periodica a unui circuit electric pe diferite ramuri de inchidere a curentului.
159. condensatorpiesa ca are proprietatea de acumulare a sarcinilor electrice.
160. Conductanta [electrotehnica]marime definita, intr-un circuit de curent continuu, ca raport intre intensitatea curentului absorbit de un receptor si tensiunea continua aplicata la borne.
161. CONEX (connectivity exchange)-
162. conjunctor - disjunctoraparat electric utilizat la conectarea si deconectarea acumulatorului la generatorul de curent continuu (dinamul) de pe autovehicule.
163. constanta de atenuaremarime care caracterizeaza scaderea,pe unitatea de lungime, in sensul propagarii,a amplitudinii a unei unde plane progresive de frecventa data.
164. contact electric (D2)atingere a doua sau mai multe conductoare,prin care se permite trecerea curentului electric de conductie de la un conductor la altul.
165. controler (D1)comutator cu actiune multipla , destinat sa realizeze o succesiune de modificari a conexiunilor unor circuite de reglare sau de pornire a motoarelor.
166. CONUS (Continental United States)-
167. convertor numeric-analogic (D1)element utilizat la conversia semnalelor din forma numerica, emise de regula de un sistem de calcul, in forma analogica.
73. DDCMP (Digital Data Communications Message Protocol) -
74. DDD (direct distance dialing)-
75. DDL (Data Definition Language) -
76. DDN (Defense Data Network)-
77. DDR (Double Data Rate Memory)-
78. DDR2 (Double Data Rate II Memory)-
79. DDS (Digital Data Service)-
80. decada [elt.]circuit cu zece stari stabile, trecind intr-o noua stare ori de cate ori i se aplica la intrare un impuls.Dupa aplicarea a zece impulsuri, revine la starea initiala.
81. decada [elt] (D3)circuit cu zece stari stabile,trecand intr-o noua stare ori de cate ori i se aplica la intrare un impuls;dupa aplicarea a zece impulsuri , revine la starea initiala.
82. decalaj [elt.]diferenta de faza.
83. decibelmetru [elt.,telc.] (D3)voltmetru de semnal alternativ, gradat in decibeli in raport cu nivelul de referinta.
84. deconectare [teh.]suprimare a unei conexiuni.
85. DECT (Digital European Cordless Telephone) -
86. DEEC (Digital Electronic Engine Control)-
87. defazaj (D1)diferenta de faza dintre doua semnale electrice periodice (sinusoidale,rectangulare ,s.a.) de aceeasi frecventa.
88. defazaj [fiz.]diferenta de faza intre doua maimi alternative de aceeasi frecventa.
89. defazor (D1)circuit electric de tip cuadripol care introduce un defazaj anumit al semnalului de iesire in raport cu semnalul de intrare.
90. DEFCS (Digital Electronic Flight Control System)-
91. DEL (Delete character)-
92. densitate de suprafataraport dintre intensitatea curentului electric de suprafata si lungimea liniei, perpendiculara pe liniile de curent,prin care trece curentul.
93. depresiunediferenta intre valoarea presiunii atmosferice si valoarea presiunii, mai joasa decat cea atmosferica,intr-un loc,intr-o incinta etc.
94. DES (Data Encription Standard)-
95. DES (Digital Encryption Standard) -
96. DESC (Defense Electronics Supply Center)-
97. descarcator 1 [elt.] (D3)dispozitiv de protectie a instalatiilor electrice impotriva supratensiunilor.
98. DESE (PPP of Encryption Protocol) -
99. desprafuire electrostaticasepararea pe cale electrostatica a particulelor solide (praf,fum) dintr-un curent de aer.
100. Detector de raport [tel.]discriminator de raport.
108. diafonie (D1)efect perturbator intalnit in transmisia informatiei pe canale de comunicatie, provenind din semnalele utile ale altor canale.
109. diafonie de antena [telc.] (D3)diafonie provocata intre un radioreleu care receptioneaza alte emisiuni de radiorelee decat cea dorita.
110. Diagrama functionala [cib.]reprezentare grafica a uni program,constind din simboluri functionale,care exprima operatori,si legaturile dintre acestea.
111. diagrama Sankeydiagrama in care se reprezinta repartitia sau circulatia unor marimi de aceeasi natura(puteri,energii etc.)prin fasii de latime proportionala cu ponderea marimii reprezentate.
112. dielcometru [elt.]instrument pentru masurarea constantei dielectrice.
113. dielectric artificial [telc.]structura metalica prezentand, fata de o unda radioelectricade frecventa si directii anumite, proprietati analoge unui corp dielectric omogen.
114. dielectric [elt.,fiz.]material izolant, susceptibil de a se polariza electric temporar, utilizand, in primul rand, pentru a constitui izolantul dintre armaturile condensatoarelor electrice.
117. diferenta de potential electric [elt.]diferenta intre potentialul electric a doua puncte, numeric egala cu lucrul mecanic efectuat prin miscarea de la un punct la celalalt ...
118. DIN (Deutsche Industrie Normenausschuss)-
119. dinamotor [elt.]masina electrica de curent continuu, cu un inductor si cu doua infasurari induse separate.
120. dinistordioda cu patru straturi.
121. dioda cu gaz [elt.,telc.]tub electronic cu doi electrozi situati intr-o incinta umpluta cu gaz rarefiat.
122. dioda cu jonctiune [elt.,telc.] (D3)dioda semiconductoare realizata prin alipirea a doua portiuni semiconductoare de tipuri diferite (p si n).
123. dioda cu vid [elt.,telc.]tub electronic cu vid inaintat, avand doi electrozi in interiorul unui invelis etans si, anume catodul - care emite electroni prin efect termoelectronic - si anodul.
124. dioda Gunndioda care la trecerea electronilor dintr-o regiune in alta, sub actiunea unui camp puternic, prezinta o rezistivitate negativa.
125. dioda IMPATTPolarizata invers la insumarea tensiunilor apare o multiplicare in avalansa a purtatorilor de sarcina
126. dioda magnetometricadioda folosita pentru masurarea intensitatii camplului magnetic, utilizand dependenta curentului anodic al diodei de campul magnetic exterior in care e introdusa.
127. dioda redresoaredispozitiv cu doua straturi,p-n, care polarizata direct conduce un curent relativ mare,iar in polarizare inversa un curent neglijabil.
128. dioda stabilizatoare (Zenner)dioda redresoare,care are in regim de conductie invers,are o portiune, a caracteristicii curent-tensiune ce permite variatia tensiunii independent de curent.
129. dioda Tuneldenumirea provine de la efectul de Tunel care apare atunci cand electronii care trec de bariera de potential poseda energie mai mica decat inaltimea barierei.
130. diode varicapdispozitiv semiconductor care are capacitate variabila functie de tensiune.
131. DIP (Dual Inline Package)-
132. dipolcircuit electric cu doua borne pe la care se face schimbul de energie cu exteriorul.
133. dipol electric [elt.] (D3)ansamblu de doua sarcini electrice, practic punctuale, egale si de nume contrare, foarte apropiate una de alta. (= dublet electric).
134. dipol magneticspira parcursa de curent,de forma circulara cu diametrul mic fata de distanta la punctele in care se studiaza campul magnetic.
135. dipol magnetic [fiz.]ansamblul celor doi poli magnetici ai unui magnet.
136. dipolul electriceste reprezentat de o pereche de sarcini punctiforme egale si de semn contrar +/- q,aflate la distanta l una de alta ,foarte mica fata de distanta la punctul unde se observa efectul lui.
137. DIRC (Digital Inter Relay Communication) -
138. discret (D1)atribut atasat notiunii de - sistem la care marimile de intrare si de iesire sunt functii discrete.
139. distorsiune (D1)efect perturbator intalnit in procesul de transmitere a informatiei pe canale de comunicatie ce altereaza semnalul util de pe canal.
140. Distorsiune reversibila (cib)Perturbatie coerenta cu semnalul utic, care poate fi eliminata (cel putin teoretic),trecand semnalul printr-o retea de corectie.
141. DIT (Decimation-In-Time)-
142. DIU (Data Interface Unit)-
143. DIV (Digitale Vermittlungsstelle) -
144. DIVF (Digitale Fernvermittlungsstelle) -
145. DIVO (Digitale Ortsvermittlungsstelle) -
146. DIVO/F (Kombination aus digitaler Orts- und Fernvermittlungsstelle) -
25. echilibrarea retelei trifazaterepartizare a receptoarelor monofazate pe cele trei faze ale retelei astfel incat curentii de linie sa formeze un sistem simetric.
26. echipament electricansamblu de piese,dispozitive,aparate,masini care deservesc o instalatie electrica.
47. EDIFACT (Electronic Data Interchange For Administration, Commerce and Transport) -
48. EDMA (Enhanced Direct-Memory-Access)-
49. EDO (Extended Data Out)-
50. EDP (Event Detection Point) -
51. eDRAM (Embedded DRAM)-
52. EDTV (Enhanced Definition Television)-
53. EEC (Electronic Engine Control)-
54. EEFL (External Electrode Fluorescent Lamp)-
55. EEPROM (Electrically Erasable Programmable Read Only Memory)-
56. EFD (enterprise flash drive)-
57. EFEC (Enhanced Forward Error Correction)-
58. efect pinch (to pinch = a strange)contractie a unui fluid conductor parcurs de curent sub sctiunea campului magnetic propriu sau a unor campuri exterioare.
59. efect stroboscopic (D2)fenomen care creeaza imagini false ale miscarii corpurilor iluminate cu lumina pulsatorie (de ex. data de lampile fluorescente).
60. Efectul Hallconsta in aparitia unui camp electric suplimentar intr-un conductor sau semiconductor prin care circula un curent electric,plasat intr-un camp magnetic normal pe directia curentului.
61. EFM (Ethernet in the First Mile, IEEE 802.3ah)-
62. EGA (Enhanced Graphics Adapter)-
63. EGP (Exterior Gateway Protocol) -
64. EGRP (Exterior Gateway Routing Protocol) -
65. EHCI (Enhanced Host Controller Interface)-
66. EHF (Extremely High Frequency)-
67. EIA (Electronic Industries Association)-
68. EIAJ (Electronic Industries Association of Japan)-
76. electroacusticaramura a acusticii tehnice care se ocupa cu transformarea oscilatiilor acustice in semnale electromagnetice si invers, precum si cu inregistrarea,redarea si transmiterea semnalelor electroacustice.
77. electrocinematicaramura a electromagnetismului care studiaza starile si fenomenele stationare si cvasistationare ce se produc in conductoarele electrice parcurse de curentii electrici de conductie.
78. electrocineticastudiaza starile electrice ale conductorilor strabatuti de un curent electric de conductie stationar numit curent continuu.
79. electroelectretidielectrici polarizati in camp electric foarte intens.
80. electroenergetica (D2)ramura a electrotehnicii care se ocupa cu producerea ,transportul si distributia energiei electrice.
81. electrolizorcuva metalica, de beton sau din materiale refractare in care se desfasoara procesul de electroliza.
82. electronic power sourcesursa de putere electronica.
83. electrotermieramura a electrotehnicii care studieaza procedeele de transformare a energiei electrice in caldura si procesele tehnologice aferente.
84. electrovolt(eV)unitate de masura (tolerata) pentru energie, egala cu variatia energieie unui electron ce parcurge distanta dintre doua puncte intre care exista o diferenta depotential de 1V.
85. element radioactiv [fiz.] (D3)element chimic,natural sau obtinut in laborator, cu proprietati radioactive.
60. FM (Frequency Modulation) modulatie de frecventa.
61. FMEA (Failure mode and effects analysis)-
62. FMP (File Maintenanace Protocol) -
63. FO (fiber optics)-
64. FOC (full operational capability, final operational capability)-
65. forta (tensiunea) electromotoare a unui generatorintegrala de linie a campului imprimat Ei , definita de la polul negativ (N) la polul pozitiv (P), prin sursa.
66. FORTRAN (FORmula TRANslation)-
67. FOT (frequency of optimum traffic)-
68. FOT (frequency of optimum transmission)-
69. fotoelectretidielectrici polarizati in camp electric constant in prezenta unui flux de radiatii luminoase.
70. fotometru (D2)aparat folosit la masurarea unor marimi fotometrice (fluxul luminos,iluminarea, luminanta etc.)
37. GOSIP (Government Open Systems Interconnection Profile)-
38. GPI (General Purpose Interface)-
39. GPI (Generic Packet Interfaces)-
40. GPIB (General Purpose Interface Bus)-
41. GPIO (General Purpose input/Output)-
42. GPRS (General Packet Radio Service)-
43. GPS (Global Positioning System) -
44. grafschema formata din puncte (noduri) si laturi (orientate sau neorientate),utilizata in teoria sistemelor si la studiul retelelor electrice.
45. grila de franare [elt.]grila intercalata intre anod si grila-ecran,in vederea indepartarii electronilor proveniti prin emisiune secundara (=Supresor).
46. grila de comanda [elt.]grila intercalata intre anod si catod in vederea reglarii curentului de electroni al poliodei.
47. grila-ecran [elt.]grila asezata intre anumiti electrozi ai poliodei,altii decat anodul si catodul,pusa la o tensiune potrivita, pentru a micsora efectele capacitatii dintre acesti electrozi.
48. GS (Galvanized Steel)-
49. GSA (General Services Administration)-
50. GSM (Global System for Mobile Communication) sistemul global pentru comunicatii mobile.
51. GSMSS (GSM Satellite System) -
52. GSTN (general switched telephone network)-
53. GTL (Gunning Transceiver Logic)-
54. GTLP (Gunning Transceiver Logic Plus)-
55. GTO (Gate Turn off)-
56. GTO (Gate Turn-Off)tenumire data tiristoarelor cu blocare pe poarta.
57. GTP (Government Telecommunications Program)-
58. GTS (Government Telecommunications System)-
59. GUI (graphical user interface)-
60. GVIF (Gigabyte Video Interface)-
61. GWT (Gross Weight)-
1. h (hecto (102))-
2. H (High speed)-
3. h (hour)-
4. h (Planck’s constant)-
5. HAL (Hardwired Array Logic)-
6. HALT (Highly Accelerated Stress Test)-
7. haresmaterial electroizolant,constituit din foi de hartie presata,impregnata cu rasini fenolice.
8. harta de camp [tele]reprezentare catografica a liniilor de egala intensitate a camplului electric a unei unde electromagnetice provenite de la o statie de radioemisiune.
9. harta ionosferica [tele]reprezntare cartografica a valorilor luate,la un moment dat,pe intreaga suprafata a globului,de o marime caracteristica a ionosferei,interesind propagarea undelor radioelectrice.
10. HASL (Hot Air Solder Level)-
11. HASS (Highly Accelerated Stress Screening)-
12. HB-LED (High Brightness LED)-
13. HBA (Host Bus Adapter)-
14. HBT (heterojunction bipolar transistor)-
15. HC (High speed CMOS)-
16. HCI (Host Communication Interface) -
17. HCP (Digital Content Protection)-
18. HCS (hard clad silica)-
19. HCSL (High Speed Current Steering Logic HCSL)-
20. HCT (High speed CMOS/TTL)-
21. HD (High Definition)-
22. HD (High Density)-
23. HD DVD (High-Definition Digital Versatile Disc)-
24. HD-PQFP (High-Density Plastic Quad Flatpack)-
25. HD-SDI (High Definition - Serial Digital Interface)-
26. HDC (Hard Disk Controller)-
27. HDCP (High Bandwidth Digital Content Protection)-
28. HDD (Hard Disk Drive)-
29. HDI (High Density Interconnect)-
30. HDLC (High-Level Data Link Control) -
31. HDMI (High-Definition Multimedia Interface)-
32. HDSL (High Bit Rate Digital Subscriber Line) -
33. HDTV (High Definition Television) -
34. HDVICP (High-Definition Video Image Co-Processor)-
35. HDX (half-duplex)-
36. HE11 mode (the fundamental hybrid mode [of an optical fiber])-
37. HEC (Header Error Control) -
38. Hel (Header Extention Length) -
39. HEMP (high-altitude electromagnetic pulse)-
40. HEMT (High Electron Mobility Transistor)-
41. heptoda [elt.]tub electronic cu sapte electrozi:un anod,un catod si cinci grile,utilizat ca schimbator de frecventa ori ca amplificator cu manta de inalta sa medie frecventa.
42. HERF (hazards of electromagnetic radiation to fuel)-
43. HERP (hazards of electro-magnetic radiation to personnel)-
44. HET (Hetetodyne)-
45. heterodinare [tele.]operatia obtinerii de batai prin suprapunere,peste un semnal produs de un anumit oscilator,a unui semnal cu o frecventa putin diferita de a primului.
46. heterodinare [tele.]montaj folosit in radiotehnica pentru producerea de batai prin interferenta a doua oscilatii de frecventa foarte apropiate.
47. heteropolarcu mai multi poli de polaritate diferita.
48. HF (high frequency)-
49. HFDF (high-frequency distribution frame)-
50. HHD (Hybrid Hard Disk)-
51. HI (HubLink [bus])-
52. HIC (Heterogeneous Interconnect)-
53. HIPPI (High Performance Parallel Interface) -
54. HLL (high-level language)-
55. HLR (Home Location Register) -
56. HMI (Human Machine Interfaces)-
57. hp (horse power)-
58. HPA (High Power Amplifier)-
59. HPC (high probability of completion)-
60. HPI (Host Port Interface)-
61. HPIB (Hewlett-Packard Interface Bus)-
62. HPXO (High Precision Crystal Oscillator)-
63. HSDPA (High-Speed Downlink Packet Access)-
64. HSPA (High-Speed Packet Access)-
65. HSSI (High Speed Serial Interface) -
66. HSSTP (High Speed Serial Trace Port Specification)-
67. HST (High Speed TTL)-
68. HSTL (High Speed Transceiver Logic)-
69. HTL (High Threshold Logic)-
70. HTML (HyperText Markup Language) -
71. HTTP (HyperText Transfer Protocol) -
72. HUD (Head Up Display)-
73. HUNI (Home User Network Interface) -
74. HV (high voltage)-
75. HVSt (Hauptvermittlungsstelle) -
76. HWCI (Hardware Configuration Item)-
77. Hz (hertz)-
1. I&C (installation and checkout)-
2. I&M (installation and maintenance)-
3. I/F (interface)-
4. I/O (input/output)-
5. I2C (Inter IC)-
6. IAEI (International Association of Electrical Inspectors)-
16. ICMP (Internet Control Message Protocol)protocol care se utilizeaza in diagnosticarea problemelor de retea.
17. iconoscop [elt.]tub electronic,folosit in televiziune,care transforma iluminarile unei imagini in tensiuni electrice proportionale cu iluminarile punctelor explorate ale imaginii.
23. IDE (Integrated Drive Electronics [Hard Drive])-
24. IDEMA (International Disk Drive Equipment Materials Association)-
25. IDF (intermediate distribution frame)-
26. IDL (Interface Definition Language) -
27. IDN (integrated digital network)-
28. IDN (Integrietes Text- und Datennetz) -
29. IDRP (Inter-Domain Routing Protocol) -
30. IDTV (Improved-Definition Television)-
31. IDTV (Integrated Digital Televisions)-
32. IEC (International Electrotechnical Commission)-
33. IEC (International Engineering Consortium)-
34. IEEE (Institute of Electrical and Electronic Engineers) institutul inginerilor electrotehnisti si electronisti.
35. IES (Industry Executive Subcommittee)-
36. IETF (Internet Engineering Task Force) -
37. IF (intermediate frequency)-
38. IFF (identification, friend or foe)-
39. IFR (Intrinsic Failure Rate)-
40. IFRB (International Frequency Registration Board)-
41. IFS (ionospheric forward scatter)-
42. IGFET (Insulated Gate Field Effect Transistor [FET Vendors])-
43. IGMP (Internet Group Management Protocol) -
44. Ignitorelectrod de comanda al unui ignitron.
45. ignitrontub redresor monoanodic cu vapori de mercur utilizat la tensiuni si curenti mari.
46. IGP (Internet Gateway Protocol) -
47. IGRP (Interior Gateway Routing Protocol) -
48. IIOP (Internet Inter ORB Protocol) -
49. IIR (infinite impulse response)-
50. IITF (Information Infrastructure Task Force)-
51. ILD (injection laser diode)-
52. ILMI (Interim Logical Management Interface) -
53. IM (intensity modulation, intermodulation)-
54. IMA (Integrated Microwave Assemblies)-
55. IMAP (Internet Message Access Protocol) -
56. IMC (Intermetallic Compound)-
57. IMD (Intermodulation Distortion)-
58. IMEI (International Mobil Station Equipment Identity) -
59. IMP (interface message processor)-
60. impedanta acustica [fiz.,tele.]paport intre presiunea acustica si fluxul de viteza printr-o suprafata data,toate marimile variabile avind o variatie armonica in timp.
61. impedanta caracteristica [elt., tele.]impedanta care,montata la capatul unei linii electriceuniforme,face ca la celalalt capat al liniei sa fie aceeasi impedanta.
62. IMSI (International Mobile Subscriber Identity) -
68. INCITS (International Committee for Information Technology Standards)-
69. inductantaraport intre fluxul magnetic stabilit printr-un circuit de curentul care trece prin el (inductanta proprie) sau printr-un alt circuit (inductanta mutuala) si intensitatea curentului respectiv.
70. inductia electricamarimea vectoriala egala cu produsul dintre permitivitatea a unui mediu izolator (dielectric)si intensitatea campului electric in acel mediu,considerat omogen si izotrop.
71. inductie electromagneticafenomen de producere , intr-un circuit, a unei tensiuni electromotoare, prin varierea fluxului magnetic care strabate acel circuit.
72. inductie magneticamarime vectoriala egala cu produsul dintre intensitatea campului magnetic si permeabilitatea magnetica absoluta a substantei in care se considera inductia magnetica.
73. inductie mutualafenomen de producere, intr-un circuit,a unei tensiuni electromotoare , prin varierea curentului electric ce trece printr-un circuit apropiat.
74. INFOSEC (information systems security)-
75. InGaN (Indium Gallium Nitride)-
76. INL (Integral Non-Linearity)-
77. INP (Indium phosphide)-
78. INS (inertial navigation system)-
79. INT (Interrupt)-
80. inteligenta artificiala (D1)domeniu de cercetare ce isi propune sa creeze sisteme capabile de a indeplinii activitati inteligente.
81. INTELSAT (International Telecommunications Satellite Consortium)-
82. interpolator )D1)dispozitiv specializat care realizeaza functia de interpolare, prevazut cu functii de calcul si cu o baza de timp proprie ce permite sincronizarea in timpul procesului de interpolare.
83. interval de masuraparte a scarii unui instrument de masurat in care citirea se poate face cu o anumita precizie.
84. IntServ (Integrated Services) -
85. invertoraparat electric din seria mutatoarelor care face conversia din tensiune continua in tensiune alternativa.
86. invertormutator care transforma curentul electric continuu direct in curent alternativ, fara vreo alta forma de energie intermediara, printr-o comanda discontinua .
87. INWATS (Inward Wide-Area Telephone Service)-
88. IOC (input-output controller)-
89. IOC (integrated optical circuit, initial operational capability)-
90. ionatom sau grup de atomi cu sarcina electrica.
91. IOPS (Input/Output Operations Per Second)-
92. IP (IndustryPack)-
93. IP (Ingress Protection [Environmental Protection Ratings])-
94. IP (Intellectual Property)-
95. IP (Internet Protocol) -
96. IP (Internet protocol, intelligent peripheral)-
97. IP DSLAM (Internet Protocol DSLAM)-
98. IPA (intermediate power amplifier)-
99. IPC (information processing center)-
100. IPC (Institute for Interconnecting and Packaging Electronic Circuits)-
101. IPCI (Industrial PCI [PCI bus])-
102. IPCI-E (Industrial PCI Express [PCIe bus])-
103. IPCP (Internet Protocol Control Protocol) -
104. IPM (impulses per minute)-
105. IPM (interference prediction model, interruptions per minute)-
106. IPM (internal polarization modulation)-
107. IPMB (Intelligent Platform Management Bus [IPMB Description])-
2. K (Frequency Band, 18.0GHz - 27.0GHz [Radar Bands])-
3. k (kelvin)-
4. k (kilo (103))-
5. Ka (Frequency Band, 27.0GHz - 40.0GHz)-
6. KA (Koppelanordnung) -
7. kbit (kilobit)-
8. kbps (kilobits per second)-
9. kbyte (kilobyte)-
10. KDC (key distribution center)-
11. KDR (keyboard data recorder)-
12. KDT (keyboard display terminal)-
13. kg (kilogram)-
14. kg*m*s (kilogram-meter-second)-
15. kHz (kilohertz)-
16. km (kilometer)-
17. kohm (kilohm)-
18. KSR (keyboard send/receive device)-
19. kT (noise power density)-
20. KTS (key telephone system)-
21. KTU (key telephone unit)-
22. Ku (Frequency Band, 12.0GHz - 18.0GHz)-
23. KVA (Kilovolt-ampere)-
24. KW (Kilowatt)kilowat.
25. KWH (Kilo Watt Hours)-
1. L (Inductance [Inductor Manufacturers])-
2. L (Low power [logic series])-
3. LA (Location Area) -
4. LAC (Location Area Code) -
5. LAN (Local Area Network) -
6. LANE (LAN Emulation) -
7. LAP (Link Access Procedure) -
8. LAP-B (Data Link Layer protocol [CCITT Recommendation X.25])-
9. LAP-D (link access procedure D)-
10. LAPB (Link Access Procedure Balanced) -
11. LAPD (Link Access Procedure D-Kanal) -
12. LAPF (Link Access Procedure Frame Relay) -
13. laplacian (laplasian) (D2)operator diferential linear de ordinul 2, care aplicat unui camp de scalari V reprezinta divergenta gradientului acelui camp.
14. LASER (Amplification by Stimulated Emission of Radiation)-
68. Logatronfiecare dintre silabele artificiale,fara nici un sens, folosite in grup pentru masurarea gradului de intelegere al convorbirilor pe un circuit telefonica.
69. logic equationecuatii logice.
70. loopbucla.
71. loran (long-range aid to navigation system)-
72. loran (long-range radio aid to navigation system)-
73. loran (long-range radio navigation)-
74. LOS (line of sight, loss of signal)-
75. LP (linear programming)-
76. LP (linearly polarized )-
77. LP (linking protection)-
78. LP (log-periodic )-
79. LP (Low-Pass )-
80. LP01 (the fundamental mode )-
81. LPA (linear power amplifier)amplificator liniar de putere.
82. LPC (linear predictive coding)-
83. LPC (Low Pin Count )-
84. LPD (Link Protocol Discriminator) -
85. LPD (low probability of detection)-
86. LPDA (Log Periodic Dipole Antenna )-
87. LPFM (Low Power FM Radio )-
88. lpi (lines per inch)-
89. LPI (low probability of interception)-
90. lpm (lines per minute)-
91. LPT (Line Printer)-
92. LQA (link quality analysis)-
93. LRC (longitudinal redundancy check)-
94. LRI (Line Replaceable Item)-
95. LRU (Lowest Replaceable Unit)-
96. LS (Low power Schottky [logic series])-
97. LSB (lower sideband, least significant bit)-
98. LSI (large scale integrated [circuit])-
99. LSI (line status indication)-
100. LTC (line traffic coordinator)-
101. LUF (lowest usable high frequency)-
102. LULT (line-unit-line termination)-
103. lumina monocromaticalumina care contine radiatii cu o singura lungime de unda, deci, in domeniu vizibil, lumina de o singura culoare.
104. LUNI (LAN Emulation User Network Interface) -
111. LVTTL (Low Voltage Transistor Transistor Logic)-
112. LWL (Lichtwellenleiter) -
113. LXI (LAN eXtensions for Instrumentation)-
1. M (material dispersion coefficient)-
2. M (mega)-
3. m (meter )-
4. M2PA (MTP2 Peer-to-Peer Adaption) -
5. M2UA (MTP2 User Adaption) -
6. M3UA (MTP3 User Adaption) -
7. MAC (Medium Access Control) -
8. MAC (Message Authentication Code)-
9. magnetic amplifier controlcontrol cu amplificator magnetic.
10. MAN (Metropolitan Area Network) -
11. MAP (Manufacturing Automation Protocol) -
12. masina asincronamasina de curent alternativ,al carei rotor are turatia diferita de cea a campului invartitor creat de stator si este dependenta de sarcina.
13. masina electrostaticamasina la care transformarea energiei mecanice in energie electrica se face prin electrizare.
14. masina sincronamasina electrica de curent alternativ a carei turatie este riguros constanta,la frecventa.
42. memorie analogicacircuit analogic destinat memorarii unei tensiuni analogice pe durate de timp de la zeci de microsecunde la cateva zeci de minute.
43. MEMS (Micro-Electro-Mechanical Systems )-
44. mentenabilitateproprietate a unui dispozitiv ,aparat sau echipament,exprimata prin probabilitatea asigurarii supravegherii,intretinerii si repararii defectiunilor intr-o anumita perioada de timp.
100. MODEM (MOdulator/DEModulator)aparat care realizeaza modularea si demodularea unui semnal.
101. MODFET (MOdulation Doped FET )-
102. modular packagingasamlare modulara.
103. mol (mole)-
104. MON (Metropolitan Optical Network)-
105. MOSPF (Multicast Open Shortest Path First) -
106. motor (D1)element de actionare(masina de forta) care preia o forma de energie, transformand-o in energie mecanica a unor corpuri aflate in miscare.
107. MOV (Metal Oxide Varistor )-
108. MOVPE (Metal Organic Vapor Phase Epitaxy)-
109. MP PPP (Multilink Protocol) -
110. MPA (Medium Power Amplifier)-
111. MPEG (Motion Pictures Expert Group) -
112. MPEG (Moving Picture Experts Group)-
113. MPOA (Multiprotocol over ATM) -
114. MPPC (Multi-Pixel Photon Counter)-
115. MRAM (Magnetoresistive random access memory )-
56. oscilator (D1)circuit electronic fara reactie sau cu reactie pozitiva, care produce prin oscilatie electromagnetica un semnal periodic sinusoidal sau nesinusoidal.
57. OSD (On Screen Display)-
58. OSF (Open Software Foundation) -
59. OSHA (Occupational Safety and Health Administration)-
60. OSI (open switching interval)-
61. OSI (Open Systems Interconnection) -
62. OSI-RM (Open Systems Interconnection—Reference Model)-
17. paramagnetism (D2)proprietate a corpurilor de a se magnetiza temporar in directia intensitatii campului magnetic.
18. PARAMP (parametric amplifier)-
19. paraziti [telc.] (D3)perturbatii provocate de diferite fenomene electromagnetice din atmosfera sau din instalatii electrice, care influenteaza sistemele de telecomunicatii.
20. parityparitate.
21. PAX (private automatic exchange)-
22. Pb (lead)-
23. PBA (Physical Block Address)-
24. PBER (pseudo-bit-error-ratio)-
25. PBIT (Power-up BIT)-
26. PBX (private branch exchange)-
27. PC (Personal Computer, carrier power (of a radio transmitter))-
28. PC (Point Code) -
29. PC104 (Embedded PC card )-
30. PCB (polychlorinated biphenyl)-
31. PCB (printed circuit board, power circuit breaker )placa de cablaj imprimat.
55. PDS (power distribution system, protected distribution system)-
56. PDS (program data source)-
57. PDT (programmable data terminal)-
58. PDU (protocol data unit)-
59. PDU (Protocol Data Unit) -
60. PE (phase-encoded )-
61. PEP (peak envelope power (radio transmitter))-
62. Perioadainterval minim de timp dupa care o functie periodica de timp recapata aceeasi valoare.
63. Permeametru [electrotehnica]instrument de masurare a permeabilitatii magnetice.
64. Permeanta [electrotehnica]marime magnetica scalara egala cu raportul dintre fluxul magnetic produs intr-un tub de linii de camp magnetic si tensiunea magnetica din lungul acelui tub.
65. PES (Protocol Elementary Stream) -
66. pF (picofarad, power factor)-
67. PFC (Power Factor Correction )-
68. PFM (Pulse Frequency Modulation) -
69. PGA (Pin Grid Array [PGA Graphic])-
70. PHEMT (pseudomorphic high electron mobility transistor)-
76. Pierderi de energie [electrotehnica]diferenta dintre energia consumata de un sistem si energia utila, restituita de acel sistem.
77. Pierderi electrice [ electrotehnica]o parte din puterea electrica care in procesul de transport sau de conversie a energiei electrice se transforma ireversibil in caldura.
78. PIM (Protocol Independent Multicast) -
79. PIM (Pulse Interval Modulation) -
80. PIN (Part Identifying Number)-
81. ping (packet Internet groper)-
82. PISA (PC Expansion Bus )-
83. PIV (peak inverse voltage)-
84. PL/I (programming language 1)-
85. PLA (programmable logic array)-
86. PLC (Printer Control Language )-
87. PLC (Programmable Logic Controller )-
88. PLCC (Plastic Leaded Chip Carrier )-
89. PLD (Programmable Logic Device )-
90. PLL (Permanent Logical Link) -
91. PLM (Phase Length Modulation) -
92. PLMR (Private Land Mobile Radio)-
93. PLN (private line network)-
94. PLR (pulse link repeater)-
95. PLS (physical signaling sub-layer)-
96. PM (mean power)-
97. pm (Phase Modulation)modulatie de faza.
98. PM (polarization-maintaining )-
99. PM (Power Management)-
100. PM (preventive maintenance)-
101. PM (pulse modulation)modulatie in impuls.
102. PM (pulse modulation)-
103. PMB (pilot-make-busy [circuit])-
104. PMC (PCI Mezzanine Card)-
105. PMIC (Power management IC)-
106. PMM (Phase Modulation, Pulse Modulation)-
107. PMO (program management office)-
108. PMT (Photomultiplier tubes)-
109. PND (Portable Navigation Devices)-
110. PNNI (Private Network Node Interface) -
111. PnP (Plug and Play )-
112. PNP (Positive Negative Positive )-
113. POC (Proof Of Concept)-
114. POD (Point of Deployment)-
115. POE (Power over Ethernet )-
116. PoF (Physics of Failure, Point of Failure)-
117. POH (Path Overhead) -
118. POI (Point of Interface)-
119. POL (Point Of Load )-
120. PON (Passiv Optical Network) -
121. POP (Package on Package)-
122. POP (PKG on PKG)-
123. POP (Point of Presence)-
124. POP (Post Office Protocol) -
125. POR (Power-On reset )-
126. POSIX (portable operating system interface for computer environments)-
127. POST (Power-On Self-Test)-
128. POTS (plain old telephone service)-
129. PP (polarization-preserving )-
130. PPM (Pulse Phase Modulation) -
131. PPMC (Processor PMC )-
132. PPP (Point to Point Protocol) -
133. PPPoE (Point to Point Protocol over Ethernet)-
134. pps (pulses per second)-
135. PPTP (Point to Point Tunneling Protocol)-
136. PPTP (Point to Point Tunneling Protocol) -
137. PQFP (Plastic Quad Flat Pack )-
138. prag de demarare (D2)valoarea sarcinii unui instrument de masura cu contor,la care acesta incepe sa inregistreze.
139. PSpurtatoare suprimata.
140. PSDN (Packet Switched Data Network) -
141. pseudoelectretidielectrici polarizati in prezenta radiatiilor nucleare affa sau beta.
142. PSK (Phase Shift Keying) -
143. PSTN (Public Switched Telephone Network) -
144. PTI (Payload Type Identification) -
145. PTM (Pulse Time Modulation) -
146. PVBR (Peak Variable Bit Rate) -
1. R&D (research and development)-
2. R/T (real time)-
3. racon (radar beacon)-
4. RADreglaj automat al dimensiunilor.
5. rad (radian)-
6. RAD (radiation absorbed dose)-
7. Radar (radio detection and ranging)-
8. RADHAZ (electromagnetic radiation hazards )-
9. RADINT (radar intelligence)-
10. Radiocomunicatietransmitere si receptie la distanta a unor sunete, semnale sau imagini, cu ajutorul undelor electromagnetice.
11. radioreleuechipament de telecomunicatii care serveste la receptia amplificarea si retransmiterea undelor lectromagnetice.
12. RAID (redundant array of independent discs)-
13. RAM (Random Access Memory)memorie cu acces aleator.
14. RAM (reliability, availability, and maintainability)-
15. RAR (D2)reanclansare automata rapida.
16. RAS (D2)reanclansare automata a sarcinii.
17. RAS (Row Address Strobe )-
18. RATT (radio teletypewriter system)-
19. RBOC (Regional Bell Operating Company)-
20. RbXO (rubidium-crystal oscillator )-
21. RC (reflection coefficient, Radio Control, resource controller)-
22. RCC (radio common carrier)-
23. RCD (Residual Current Device )-
24. RCVR (receiver)-
25. RDregistru de deplasare.
26. RD (Read)-
27. RDF (radio-direction finding)-
28. RDIMM (Registered DIMM )-
29. RDRAM (Rambus DRAM )-
30. RDY (Ready)-
31. REA (Rural Electrification Administration)-
32. redundanta, (in sens general) (D1)folosirea unui numar mai mare de elemente decat cele absolut necesare realizarii unui anumit scop.
33. REF (Reference)-
34. regim automat (D1)mod de functionare care nu presupune interventia directa a unui operator uman.
35. RET (Reliability Enhanced Testing)-
36. rezistorcomponenta electronica de circuit careia daca i se aplica o tensiune la borne si prin ea trece un curent, relatia care o defineste este raportul intre tensiune si curent.
37. rezistor (D2)element de circuit cu inductivitate si capacitate neglijabile, construit pentru a avea o anumita rezistenta.
38. rezonanta in circuitele de curent alternativse spune ca intr-un circuit dat exista rezonanta cand reactanta echivalenta X(sau susceptanta echivalenta B) devine nula.
39. rf (radio frequency)-
40. RF (range finder)-
41. RFC (Radio Frequency Choke )-
42. RFI (Radio Frequency Interference)-
43. RFID (Radio Frequency Identification)-
44. RFP (Request For Proposal)-
45. RFQ (Request For Quotation)-
46. RGB (Red-Green-Blue )-
47. RH (Relative Humidity)-
48. RHR (Radio Horizon Range)-
49. RI (routing indicator)-
50. RIMM (Rambus DIMM )-
51. RISC (reduced instruction set computer)-
52. RJ (Registered Jack )-
53. RJE (remote job entry)-
54. RLDRAM (Reduced Latency DRAM )-
55. RMM (Removable Memory Module)-
56. RMS (root mean square) -
57. RO (read only)-
58. ro (receive only)-
59. ROA (recognized operating agency)-
60. ROC (required operational capability)-
61. RoHS (Restriction of Hazardous Substances )-
62. ROM (read-only memory )-
63. ROSA (Receiver Optical Sub-Assembly)-
64. ROSE (remote operations service element protocol)-
65. RPC (Remote Power Controller)-
66. RPM (rate per minute)-
67. Rpm (revolutions per minute)-
68. RPOA (recognized private operating agency)-
69. Rps (revolutions per second)-
70. RQ (repeat-request)-
71. RR (repetition rate)-
72. RS (recommended standard, Reed-Solomon)-
73. RSDS (Reduced-Swing Differential-Signaling)-
74. RSL (received signal level)-
75. rss (root-sum-square)-
76. RTA (remote trunk arrangement)-
77. RTC (Real Time Clock )-
78. RTD (Resistance Temperature Detector)-
79. RTL (Resistor-Transistor Logic)clasa de circuite integrate numerice.
80. RTOS (Real Time Operating System )-
81. RTS (request to send)-
82. RTTY (radio teletypewriter [Obsolete term])-
83. RTU (remote terminal unit)-
84. RTX (request to transmit)-
85. RU (Rack Unit [Equipment Rack Manufacturers])-
86. RVA (reactive volt-ampere)-
87. RVWG (Reliability and Vulnerability Working Group)-
88. RWI (radio and wire integration)-
89. RWM (Read-write Memory)-
90. RX (receive, receiver)-
91. RXD (receive data)-
92. RZ (return-to-zero )-
1. s (second)-
2. S-F (store-and-forward)-
3. S/H (sample and hold)-
4. S/N (signal-to-noise)-
5. S/R (send and receive)-
6. SAsistem automat.
7. SAE (Society of Automotive Engineers)-
8. SAN (Storage Area Network)-
9. SAS (Serial Attached SCSI )-
10. SATA (Serial Advanced Technology Attachment )-
55. servomotor hidraulic rotativservomotor hidraulic al carui principiu de functionare consta in transformarea miscarii rectilinii in miscare de rotatie.
56. SEU (Single Event Upset)-
57. SEVAS (Secure Voice Access System)-
58. SF (single-frequency )-
59. SFDR (Spurious Free Dynamic Range)-
60. SFF (Small Form Factor)-
61. SG (signal ground)-
62. SGDF (super-group distribution frame)-
63. SHA (sidereal hour angle)-
64. SHARES (Shared Resources (SHARES) HF Radio Program)-
65. SHB (System Host Board )-
66. SHF (super high frequency)-
67. SI (D2)sistem de unitati.
68. SI (International System of Units )-
69. SID (sudden ionospheric disturbance)-
70. SIDAC (Bidirectional Thyristor Diodes)-
71. SIGINT (signals intelligence)-
72. SIL (Single In Line [Package])-
73. SIM Card (Subscriber Identity Module Card )-
74. SIMM (Single Inline Memory Module)-
75. SINAD (signal-plus-noise-plus-distortion to noise-plus-distortion ratio)-
76. SIP (Silicon Intellectual Property )-
77. SIP (Single In-line Package )-
78. SIP (System in a Package)-
79. SIR (Surface Insulation Resistance)-
80. sistemul trifazat simetricun ansamblu de trei marimi sinusoidale de aceeasi frecventa , valori eficace egale si diferente relative de faza egale cu 2pi/3.
81. SLD (super-luminescent diode )-
82. SLED (Surface-emitting LEDs)-
83. SLI (service logic interpreter)-
84. slope adjustmentajustarea pantei.
85. SLP (service logic program)-
86. SMA (Sub-Miniature A )-
87. SMD (Solder Mask Defined)-
88. SMD (Surface Mount Device)-
89. SMDR (station message-detail recording)-
90. SMIC (Server Management Interface Chip )-
91. SMLP (Surface Mountable Leadless Package)-
92. SMOBC (Solder Mask Over Bare Copper)-
93. SMP (Surface Mounted Package)-
94. SMP (Switch Mode Pump)-
95. SMP (Symmetric-Multiprocessing)-
96. SMPS (Switched-Mode Power Supply )-
97. SMPTE (Society of Motion Picture and Television Engineers)-
30. telesemnalizarefunctie de telemecanica cu caracter calitativ incluzand problemele transmiterii la distanta(punctul de comanda)a unor informatii cu caracter discret despre starea procesului(dela punctele controlate).
31. TEM (telecommunications equipment manufacturers)-
32. TEM (transverse electric and magnetic)-
33. TEM (Transverse Electromagnetic)-
34. TEMPEST (compromising emanations)-
35. TEMS (Telecommunications Management System)-
36. termistorrezistor a carui valoare sa modifica functie de temperatura.
37. termoelectretidielectrici initial incalziti la o temperatura apropiata de punctul de topire si ulteriorraciti in prezenta unui camp electric constant.
38. TFT (Thin Film Transistor)-
39. TG (Glass transition temperature)-
40. TGM (trunk group multiplexer)-
41. THD (Total Harmonic Distortion)-
42. THF (tremendously high frequency)-
43. THz (terahertz)-
44. TIA (Telecommunications Industry Association)-
45. TIE (time interval error)-
46. TIFF (tag image file format)-
47. TII (Transducer Independent Interface)-
48. TIP (terminal interface processor)-
49. TLP (transmission level point)-
50. TM (transverse magnetic )-
51. TNC (Threaded Navy Connector)-
52. TOA (Time of Arrival)-
53. TOE (TCP Offload Engine)-
54. torcorp obtinut prin rotirea unei suprafete(circulare sau dreptunghiulare)in jurul unei axe din exteriorul acestei suprafete.
55. TOSA (Transmitter Optical Sub-Assembly)-
56. TOSLINK (TOShiba-LINK )-
57. TPI (Tracks Per Inch )-
58. TQFP (Thin Quad Flat Pack)-
59. TRtransformator.
60. TRANSEC (transmission security)-
61. transformator electriccomponenta electromagnetica care se bazeaza pe fenomenul de inductie electromagnetica.
62. tranzistorul bipolarcomponenta semiconductoare, cu jonctiuni, care se bazeaza pe injectia purtatorilor minoritari de sarcina.
63. TRC (transverse redundancy check)-
64. TRF (tuned radio frequency)-
65. triacdispozitiv cu cinci straturi, echivalent cu doua tiristoare asezate antiparalel in acelasi monocristal de siliciu, avind un electrod de comanda.
66. TSK (transmission security key)-
67. TSP (Telecommunications Service Priority)-
68. TSPD (Thyristor Surge Protective device)-
69. TSPS (traffic service position system)-
70. TSR (telecommunications service request)-
71. TSR (terminate and stay resident)-
72. TTA (Time Triggered Architecture )-
73. TTL (Transistor-Transistor Logic)clasa de circuite integrate numerice.
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modulatie de frecventa.
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sistemul global pentru comunicatii mobile.
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institutul inginerilor electrotehnisti si electronisti.
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standard international.
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