Transistor

Transistor

    bappi ashraf

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`ywU (P–N) Rvsk‡bi mgš^‡q GKwU UªvbwRói ˆZix nq| UªvbwRói bvgwU g~jZt UªvÝdigvi †iwRóvi K_v †_‡K G‡m‡Q| Bnv †Kvb wmMb¨vj‡K Kg †_‡K †ekx †iwRó¨v‡Ý UªvÝdvi K‡i| †iwRóv‡Ýi gva¨‡g Kv‡i›U UªvÝdvi Kivi Rb¨ Gi bvg n‡”Q UªvÝdvi †iwRóvi ev UªvbwRói| transistor- Avwew¯‹…Z nq  1948 mv‡j| GLvb †_‡KB B‡jKUªwb‡·I ïi“| G‡Z Aa©cwievnx (semiconductor) wnmv‡e wmwjKb ev Rv‡g©wbqvg e¨eüZ nq| GwU wmMb¨vjvK ewa©Z (amplyfy) K‡i|

Questions of Various Exams

·      B‡jKUªwb‡·i ïi“ nq-(cwiKíbv gš¿Yvjq †WUv cÖ‡mwms Acv‡iUi :02/hye Dbœqb Awa`߇ii mnKvix cwiPvjK: 99)

a. †iveU Avwe®‹v‡ii gva¨‡g                                                b. UªvbwR÷i  Avwe®‹v‡ii mgq †_‡K

c. I.C Avwe®‹v‡ii mgq †_‡K                              d. Kw¤úDUvi Avwe®‹v‡ii gva¨‡g                    Ans. b

·  UªvbwR÷i  D™¢vweZ nq-(Mbgva¨g Bbw÷wUDU mnKvix cwiPvjK, †Uwjwfkb I †eZvi cª‡KŠkjx cÖwk¶Y : 03/ Bangladesh Commerce Bank Ltd, Officer(Grade-111): 00)

a. 1948 mv‡j                                                                b. 1950mv‡j

c. 1952 mv‡j                                                                d.1954 mv‡j                                                             Ans. a

·  Transistor ‰Zwi Ki‡Z cÖ‡qvRb nq - (Z_¨ gš¿Yvj‡qi DcmnKvix cÖ‡Kxkjx, †Uwjwfkb:01)

a. Conductor (cwjevnx)                                                 b. Semiconductor (Aa©cwievnx)

c. Insulator (Aš—iK)                                       d. Wood (KvV)                  Ans. b

·                  UªvbwR÷i e¨eüZ †mwgKÛv±‡ii bvg wK? (†Uwj‡dvb †ev‡W©i mnKvix cwiPvjK:95)

a. wmwjKb                                         b. Kve©b

c. wm‡jwbqvg                                     d. Rv‡g©wbqvg                                      Ans. a

·      UªvbwR÷i I gvB‡µvmvwK©U cÖ¯‘wZ‡Z wb‡Pi †KvbwU e¨eüZ nq-(gva¨wgK we`¨vjq mnKvix wk¶K:04)

a. Kve©b                                            b. MÖvdvBU

c. wmwjKb                                         d. `¯—v                                                Ans. c

·                   wmwjK‡bi e¨envi †Kvb wk‡í †ewk nq?(kªg Awa`߇i kªg Kg©KZ©v I RbmsL¨v cwieviKj¨vY Kg©KZ©v:03)

a.Ila                                              b. B‡jKUªwbK

c. iO                                                d. KvMR                                              Ans. b

·  UªvbwR÷‡i †mwg-KbWv±i wnmv‡e e¨eüZ nq-(cvm‡cv©U GÛ Bwg‡MÖkb Awa`߇i mnKvix cwiPvjK:07)

a. Av‡m©wbK                                       b. Rv‡g©wbqvg                            

c. Uvs‡÷b                                         d. g¨v½vwbR                                         Ans. b

·  mvavibZ UªvbwR÷‡ii KvR-[Mbgva¨g Bbw÷wUDU mnKvix cwiPvjK,†Uwjwfkb I †eZvi cª‡KŠkjx cÖwk¶Y : 03]

a. GKgyLxKiY                                   b. wdëvwis

c. weea©K wnmv‡e                                                d. ¯ú›`K wnmv‡e                                 Ans. c

·         ‡KvbwU Aa©cwievnx (Semi - conductor)bq?  (31th Bcs Preliminary)

a.‡jvnv                             b. wmwjKb

c. Rv‡g©wbqvg                     d. M¨vwjqvg                                                          Ans. a

1953 - evwbwR¨K fv‡e cÖ_g mdj Kw¤úDUvi n‡”Q IBM-650 g‡Wg| cÖ_‡g GwU gvÎ 50wU ˆZix Kiv n‡jI c‡i AveviI 1000 Gi †ekx ˆZix K‡i evRv‡i Qv‡o IBM †Kv¤úvbx|

1957 - John Backjar Avwe®‹vi K‡ib †cÖvMÖvwgs j¨v½y‡qR FORTRAN (Formula Translation).

Question of various Exams

·         Kw¤úDUv‡ii cÖ_g †cÖvMÖvwgs fvlv †KvbwU? (cwi‡ekI eb gš¿Yvj‡qi Aaxb cwi‡ek Awa`߇ii mnKvix cwiPvjv: 07)

a. C++                                    b.ADA

c.FORTRAN                         d.PASCAL                                       Ans. c                 

1958 - Jack Kilby Avwe®‹vi K‡ib Integrated Circuts (IC). hv wKbv we`y¨r cÖev‡ni MwZc‡_i GK cwic~Y© iƒc Avwe®‹vi nq Ges e`‡j hvq Kw¤úDUvi cÖR‡b¥i| Kw¤úDUvi n‡q D‡V AwaK MwZ I †ggix m¤úbœ|

GwU e¨env‡i cÖ_g Kw¤úDUvi n‡”Q IBM System -360.

·         AvaywbK Kw¤úDUv‡ii `ª“Z AMÖMwZi g~‡j i‡q‡Q-(kªg I Kg©ms¯’vb gš¿Yvj‡qi Aax‡b mnKvix kªg Awdmvi: 01)

a. cv KvW©                                       b. Bw›U‡MÖ‡UW mvwK©U

c. evq~k~b¨ wUDe                                 d. U¨vbwR÷i                                      Ans. b

·         wb‡Pi †Kvb †gŠjwU Kw¤úDUvi wPc ‰Zwii Rb¨ mev©waK e¨eüZ nq? (RMbœv_ wek¦we`¨vjq fwZ© cix¶v, N BDwbU:05-06)

a. wmwjKb                                         b. Kcvi   

c. mvjdvi                                         d. Kve©b                                               Ans. a

·         Bw›U‡MÖ‡UW B‡jKUªwb· eZ©bx n‡jv GKwU AwZ - [Mbgva¨g Bbw÷wUDU mnKvix cwiPvjK, †Uwjwfkb I †eZvi cª‡KŠkjx cÖwk¶Y : 01]

a. mvavib eZ©bx                                 b. mnR eZbx©

c. ‡QvU GK UzKiv wmwj†Kv‡bi UyKivi Dci ‰Zwi AwZ ¶z`ª eZ©bx

d. m¯—v `v‡gi eZ©bx                                                                                                  Ans. c

·         IC D™¢veb K‡ib-(Mbgva¨g Bbw÷wUDU mnKvix cwiPvjK, †Uwjwfkb I †eZvi cª‡KŠkjx cÖwk¶Y : 03)

a. †R Gm †Kjwe                               b. ievU© ûK

c. AveKvm                                         d. Rb IqvUmb                                    Ans. a

·         What is the other name for a Chip? /wP‡ci Aci bvg wK? (Sonali, Janata and Agrani Bank Cash Officer :08)

a. IC                                               b. ROM

c. LAN                                           d. RAM                  

e. BIOS                                                                                                    Ans. a

·         IC wPc w`‡q ‰Zwi cÖ_gwWwRUvj Kw¤úDUvi -(wk¶v Awa`߇ii Aaxb KvwiMix wk¶v Rywbqi Bb÷ªv±i: 05)

a. PDP-1                                        b. Mark-1

c. Intel 4004                                 d. IBM system 360                       Ans. d

1960 - Dr. Grass Hopper Avwe®‹vi K‡ib weR‡bm A¨vcwj‡Kkb j¨v½y‡qR COBOL.

1965 - Dr. John Kamony Avwe®‹vi K‡ib DbœZ †cÖvMÖvwgs j¨v½y‡qR BASIC Ges cÖ_g Mini Computer Gi Avwe®‹vi nq|

1968-mv‡ji 18 RyjvB R¤§ nq B‡÷j K‡cv©‡ik‡bi| GwU we‡k¦i me‡P‡q eo I cyivZb †mwgKÛv±i wPc ev †cÖv‡mmi ‰Zixi cÖwZôvb| GwU X86 wmwiR w`‡q wPc ‰Zix ïi“ Ki‡jI GLb evRv‡i Av‡Q cose I7, GwUi m`I `ßi hy³ iv‡óªi K¨vwj‡dvwbqvi mv›Uv K¬viv‡Z Aew¯’Z| Avi we‡k¦i GKgvÎ I cÖ_g Kw¤úDUvi hv`yNiwU hy³iv‡ôi AvUjv›Uvi|

·  we‡k¦i cÖ_g I GKgvÎ Kw¤úDUvi hv`yNiwU Aew¯’Z (Z_¨ gš¿Yvj‡qi Aax‡b Z_¨ Awdmvi :05)

a.hy³iv‡óª                                         b.hy³iv‡R¨

c.Rvcv‡b                                           d.KvbvWvq                                           Ans. a

·         c„w_exi cÖ_g I GKgvÎ Kw¤úDUvi hv`yNi †Kv_vq Aew¯’Z? (ivwe fwZ© cix¶v (ivóªweÁvb):05-06)

a.AvUjv›Uvq                                      b.wbDBq‡K©

c.Bsj¨v‡Û                                          d.†iv‡g                                               Ans. a

1971 - Intel Corporation Gi Dr. Tade Haff Kw¤úDUvi wmwjKb wPc (gvB‡µvcÖ‡mmi) Gi DbœwZ mvavb K‡ib| evRv‡i Av‡m Intel-4004 wPc| ïi“ nq gvB‡µv Kw¤úDUv‡ii c_Pjv|