There are two main parts of a computer: hardware and software. Hardware refers to the physical components of a computer like the central processing unit (CPU) and input/output devices. Software refers to the programs and operating systems that run on the hardware and allow it to perform tasks. A computer's memory, which can be RAM or ROM, is where data and instructions are stored and accessed by the CPU to carry out operations. An operating system manages the hardware and software resources and allows users to interact with the computer.

1. Computer Fundamental
Created by: Md. Kamrul Hassan Bappy Page: 1 of 6 E-mail: info@khola-janala.com
What Is Computer?
Kw¤úDUvi wK?
Computer kãwUi mvaviY A_© n‡”Q MYK hš¿| j¨vwUb kã Compute †_‡K Bs‡iRx Computer k‡ãi DrcwË|
Compute kãwUi A_© MYbv ev wnmve wbKvk Kiv| Kw¤úDUv‡ii mvnv‡h¨ g~jZt †hvM, we‡qvM, ¸Y, fvM BZ¨vw` Kvhv©ejx
m¤úv`b Kiv hvq| wKš‘ eZ©gvb hy‡M Kw¤úDUv‡ii eûgyLx e¨env‡ii d‡j Kw¤úDUv‡ii ms½v A‡bK e¨vcKZv jvf K‡i‡Q|
†Kvb mxwgZ ms½v w`‡q Avi Kw¤úDUvi‡K MÛxe× Kiv hvq bv|
Who Is The Inventor Of Computer?
Kw¤úDUvi -Gi Avwe®‹viK ‡K?
wewkó weÁvbx weªwUk MwYZwe` Pvj©m e¨v‡eR AvaywbK Kw¤úDUv‡ii g~jbxwZ wbav©iY K‡ib| ‰eÁvwbK cÖhyw³i Afv‡e e¨v‡e‡Ri
GB g~jbxwZ ev¯—evqb Kiv m¤¢e nqwb| ZeyI Zvui GB hyMvš—Kvix wPš—vfvebv Ges cÖ‡Póvi Rb¨ Zvu‡K AvaywbK Kw¤úDUv‡ii
RbK ejv nq| 1887 mv‡j Wv³vi nvigvb n‡jwi_ Av‡gwiKvi Av`gïgvixi KvR `ª“Z m¤úv`‡bi Rb¨ Pvj©m e¨v‡e‡Ri
g~jbxwZ wb‡q M‡elbv ïi“ K‡ib| c‡i 1911 mv‡j `yÕwU wfbœ ‡Kv¤úvbxi mn‡hvMxZvq wZwb KgwcDwUs, †Uey‡jwUs I †iKwW©s
†Kv¤úvbx cÖwZôv K‡ib| hv c‡i wek¦ weL¨vZ IBM (International Business Machine) -G iƒcvš—wiZ nq|
Computer Structure:
Kw¤úDUvi Gi MVb cÖbvjxt
Computer g~jZt wZbwU As‡k wef³| †hgb t
1. Input Device. D`vniYt Kx †evW©, gvDm, Rqw÷K, MÖvwd· c¨vW, ¯‹vbvi BZ¨vw`|
2. Central Processing Unit (CPU)
3. Output Device. D`vniYt gwbUi, wcÖ›Uvi, w¯úKvi cÖf„wZ|
Deference Between Computer & Human Being:
Kw¤úDUvi I gvby‡li g‡a¨ cv_©K¨t
Kw¤úDUvi I gvby‡li g‡a¨ cv_©K¨ n‡jv Kw¤úDUvi †h †Kvb Kv‡Ri djvdj AwZ `ª“Z MwZ‡Z cÖ`k©b K‡i| wKš‘ gvbyl Zv cv‡i
bv| Zv m‡Ë¡I gvbyl Kw¤úDUv‡ii †P‡q eyw×gvb| Kvib Kw¤úDUvi gvby‡li nv‡Z Mov GKwU B‡jKUªwb· hš¿| Zvi †P‡q eo
KviY n‡jv Kw¤úDUv‡ii wbR¯^ †Kvb eyw× †bB| gvbyl hw` Zvi ¯§„wZ ev †g‡gvix‡Z md&UIqvi †mU K‡i †`q Zvn‡j †m H
md&UIqv‡ii mvnvh¨ wb‡q Avgv‡`i mvg‡b Z_¨ cÖ`vb Ki‡e| Zvi †ekx ev Kg Ki‡e bv|
Classification Of Computer:
Kw¤úDUvi Gi MVb cÖbvjxt
MVb I D‡Ïk¨ †f‡` Kw¤úDUvi‡K `yB fv‡M fvM Kiv hvq| h_vt
Analog Computer
Digital Computer
GQvov Dc‡iv³ `yB ai‡Yi Kw¤úDUvi Gi mswgkª‡b Av‡iKwU Kw¤úDUvi ˆZix n‡q‡Q| Gi bvg Hybrid Computer|
Note : wWwRUvj Kw¤úDUvi‡K Avevi Pvi fv‡M fvM Kiv nq| h_vt 1. mycvi Kw¤úDUvi 2. †gBb‡d«g Kw¤úDUvi
3. wgwb‡d«g Kw¤úDUvi 4. gvB‡ v Kw¤úDUvi ev, cv‡m©vbvj Kw¤úDUvi| wb‡P Gi m¤ú‡K© Zz‡j aiv nj|
Classification Of Digital Computer:
wWwRUvj Kw¤úDUvi Gi MVb cÖbvjxt
Super Computer. D`vniYt fvi‡Zi wbR¯^ ˆZix K…Z mycvi Kw¤úDUvi ÔcigÕ| GQvov i‡q‡Qt Cray-1, Cyber-205.
Mainframe Computer. D`vniYt UNIVAC 1100/11, IBM 6120, NCR N8370, IBM 4341.
Miniframe Computer. D`vniYt PDP 11, NOV A3, IBM S/34, IBM S/36.
Micro Computer. D`vniYt eZ©gv‡b Avgiv †h me Kw¤úDUvi †`wL Zvi meB n‡”Q gvB‡ v ev, cv‡m©vbvj Kw¤úDUvi|
G‡`i g‡a¨ i‡q‡Q : Apple 64, IBM PC, TRS 80 cÖf„wZ|
BbcyU
wWfvBm
MvwbwZK hyw³ Ask
-----------^-----------
‡m›Uªvj BDwbU --- >
-----------^-----------
¯§„wZ GjvKv
AvDUcyU
wWfvBm

2. Computer Fundamental
Created by: Md. Kamrul Hassan Bappy Page: 2 of 6 E-mail: info@khola-janala.com
Measurement Of Data Of The Computer:
Computer -Gi Z_¨ cwigv‡ci GKKt
evBbvix bv¤^vi c×wZ‡Z e¨eüZ AsK 0 (ïb¨) Ges 1 (GK) ‡K Bit e‡j| Bs‡iRx Binary k‡ãi Bi I Digit k‡ãi t wb‡q
Bit kãwU ˆZix n‡q‡Q| Kw¤úDUvi ¯§„wZ‡Z iw¶Z 0 I 1 Gi †KvW w`‡q wewfbœ Z_¨ msiw¶Z _v‡K| G Kvi‡Y Kw¤úDUv‡ii
¯§„wZi aviY ¶gZvi ¶y`ª GKK wnmv‡e Bit kãwU e¨eüZ nq| Kw¤úDUvi GB 0 I 1 Øviv †h we‡kl c×wZ‡Z Kw¤úUv‡ii KvR
K‡i Zv‡K Kw¤úUv‡ii hvwš¿K fvlv ejv nq|
Bit, Byte, KB,MB,GB Ges Gi g‡a¨ m¤úK©t
Kw¤úDUv‡ii ¯§„wZ‡Z weU, evBU ev Kw¤úDUv‡ii kã avi‡Yi msL¨v Øviv aviY ¶gZv wb‡`©k Kiv hvq| mvavibZt evBU w`‡q
¯§„wZi aviY ¶gZv cÖKvk Kiv nq| Z‡e ejv `iKvi †h weU n‡”Q Kw¤úUv‡ii msL¨v c×wZi ¶z`ªZg GKK| G‡`i g‡a¨ m¤ú©K
wb‡P Zz‡j aiv njt
8 Bit = 1 Byte
1024 Byte = 1 Kilobyte(KB) [1 Byte = 1 Character]
1024 Kilobyte = 1 Megabyte (MB)
1024 Megabyte = 1 Gigabyte (GB)
1024 Gigabyte= 1 Terabyte (TB)
How Many Parts Of A Computer?
Kw¤úDUvi Gi KqwU Ask I wK wK?
There are two parts of a Computert
Hardware:
Kw¤úDUv‡ii mKj cÖKvi hš¿ ev, hš¿vsk‡K Hardware (nvW©Iq¨vi) ejv nq|
Software :
wb®cÖvb nvW©Iq¨vi‡K Kvh©¶g K‡i mw q K‡i †Zvjvi Rb¨ e¨eüZ ‡cÖvMÖvgB n‡”Q mdUIq¨vi|
What Is Memory?
¯§„wZ wK?
gvby‡li g‡Zv Kw¤úDUv‡iiI †g‡gvix ev, ¯§„wZ i‡q‡Q| Kw¤úDUv‡ii ¯§„wZ‡K `yB fv‡M ch©vwqZ Kiv hvq| h_vt
1. cÖavb ¯§„wZ (Main memory) †hgbt RAM, ROM|
2. mnvqK ¯§„wZ (Auxiliary memory) †hgbt d¬wc wW‡¯‹U, nvW©wW¯‹, Kgc¨v± wW¯‹ cÖf„wZ|
What Is RAM?
i¨vg wK?
RAM (Random Access Memory) GKwU A¯’vqx (Volatile) ¯§„wZ fvÛvi | Input Device n‡Z mKj cÖKvi Z_¨
RAM G Rgv nq| cÖavb ¯§„wZi G As‡k hLb ZLb bZzb Z_¨ †jLv hvq, Z_¨ cov hvq Ges B”Qv Ki‡j Z_¨ mg~n gy‡Q †djv
hvq| RAM -Gi Z_¨ cov I †jLv Dfq KvRB m¤úv`b Kiv hvq e‡j G‡K wjLb cVb ¯§wZI (Read Write Memory)
ejv n‡q _v‡K| we`y¨r mieivn eÜ n‡j RAM G iw¶Z mKj Z_¨ gy‡Q hvq| ZvB G‡K A¯’vqx ¯§„wZ wnmv‡e AwfwnZ Kiv
nq|
What Is ROM?
ig wK?
ROM (Read Only Memory) GKwU ¯’vqx (Non Volatile) ¯§„wZ fvÛvi| cÖavb ¯§„wZi GB AskwU ¯’vqx, AcwieZ©bxq I
AaŸsmvZ¡K ¯§„wZ| Computer -G we`y¨r mieivn eÜ K‡i w`‡jI GB ¯§„wZ‡Z iw¶Z Z_¨ gy‡Q hvq bv| ROM -G bZzb wKQy
ms‡hvRb, ms‡kvab ev cwieZ©b Kiv hvq bv| GB As‡k wjwLZ Z_¨ ïaygvÎ cov hvq, wKš‘ †jLv hvq bv| ZvB G‡K ¯’vqx ¯§„wZ
wnmv‡e AwfwnZ Kiv nq|

3. Computer Fundamental
Created by: Md. Kamrul Hassan Bappy Page: 3 of 6 E-mail: info@khola-janala.com
What Is Disk?
wW¯‹ wK?
Computer Gi hveZxq Z_¨ msi¶Y Kivi Avavi †K Disk e‡j|
Disk `yB ai‡bi n‡q _v‡K| †hgbt
1. Floppy Disk
2. Hard Disk.
GQvovI evRv‡i AviI GK ai‡bi Disk cvIqv hvq hvi bvg Compact Disk (CD).
wW¯‹ Gi aviY ¶gZv wbæwjwLZ:
Floppy Disk: 1.44 Megabyte (MB) [ For 31
/2 Floppy Disk ]
Compact Disk: 150 Megabyte (MB) †_‡K 800 Megabyte (MB)
Hard Disk: 15 Gigabyte (GB) †_‡K 800 Gigabyte (GB)
DVD Disk: 700 Megabyte (MB) †_‡K 12 Gigabyte (GB)
What Is Operating System?
Operating System wK?
Operate (Pvjv‡bv) ‡_‡K Operating k‡ãi DrcwË| k‡ãi AvwfavwbK A_© n‡jv cwiPvjbv Kiv| Avi System k‡ãi A_© n‡jv c×wZ|
Operating System ej‡Z Kw¤úDUvi cwiPvjbv Kivi c×wZ‡K eySvq| Operating System ej‡Z cwiPvjbv Kiv eySvq bv| hLbB
Avgiv †Kvb Kw¤úDUvi Pvjy Ki‡Z hvB Zvi c~‡e© Avgv‡`i‡K Rvb‡Z n‡e Kw¤úDUv‡i Operating System Av‡Q wKbv| †Kbbv Operating
System Kw¤úDUv‡ii mg¯— Ask wbqš¿b K‡i| Zvjve× GKwU N‡i cÖ‡ek Ki‡Z n‡j ‡hgb Pvwei cÖ‡qvRb nq, bv n‡j XyKv m¤¢e bq|
†Zgwb fv‡e Kw¤úDUvi Pvjv‡Z cÖ‡qvRb nq Operating System. †hgbt DB‡ÛvR, BDwb·, wjbv·, g¨vK IGm, cvIqvi I‡cb
cÖf„wZ|
What Is Startup Disk?
÷vU© Avc wW¯‹ wK?
Acv‡iwUs wm‡÷gi ‡hme dvBj †jvwWs Gi gva¨‡g Kw¤úDUvi Pvjy nq †m¸‡jv n‡”Q ÷vU© Avc dvBj| Ges Kw¤úDUv‡ii †h
¯§„wZ‡Z GB ÷vU© Avc dvBj¸‡jv msiw¶Z _v‡K Zv n‡”Q Acv‡iwUs wm‡÷g| mvavibZ GUI B›Uvi‡dm mg„× DB‡Ûv‡Ri
÷vU©Avc wW¯‹ wn‡m‡e nvW©wW¯‹ Ges Dos ‡gv‡Wi Rb¨ ÷vU© Avc wW‡¯‹U wn‡m‡e d¬wc wW¯‹ e¨eüZ nq|
What Is Windows?
Windows wK?
Windows n‡jv Microsoft Corporation KZ…©K evRviRvZK…Z GKwU kw³kvjx Operating System. Windows Operating
System -Gi Aax‡b A‡bK¸‡jv Application Software _v‡K hv †m cwiPvjbv K‡i _v‡K| DOS (Disk Operating System)
-Gi Aax‡b †h me Application Software _v‡K †m¸‡jv Avgiv DOS Command Gi gva¨‡g cwiPvjbv Kwi| DOS
Command -Gi RwUjZv `~i Kivi Rb¨ Microsoft Corporation Windows Operating System wU †ei K‡ib| GLv‡b
Application Software ¸‡jv cwiPvjbvmn mKj KvR Mouse I Keyboard Gi mgš^‡q Lye mn‡R Kiv hvq|
Various Types Of Windows Operating System’s Verson:
Windows Acv‡iwUs wm‡÷‡gi fvm©‡bi wewfbœZvt
Av‡MB ejv n‡q‡Q DB‡ÛvR GKwU kw³kvjx Acv‡iwUs wm‡÷g| ïay ZvB bq GwU †hgb BDRvi †d«‡Ûjx †Zgwb eûj e¨eüZ
GKwU Acv‡iwUs wm‡÷g| GwUi wewfbœ fvm©b i‡q‡Q| ‡hgbt Windows 98, Windows 2000, Windows ME. eZ©gv‡b
bZzb e¨eüZ DB‡ÛvR n‡”Q Windows XP. GQvovI ‡bUIqvwK©s Gi Rb¨ e¨eüZ Acv‡iwUs wm‡÷g nj Windows NT.
Acv‡iwUs wm‡÷‡gi wfbœZvi `i“b G‡K bvbv ai‡bi fvm©‡b fvM Kiv nq| DB‡ÛvR 95 Gi Av‡Mi Kvi Acv‡iwUs wm‡÷g ¸‡jv
wQj 16 we‡Ui| Gici 95, 98, 2000, Gg B, GbwU GB ms¯‹iY ¸wj wQj 32 we‡Ui| eZ©gv‡b DB‡ÛvR G·wc evRv‡i
Av‡Q| GwU 64 we‡Ui Acv‡iwUs wm‡÷g Ges Ab¨vb¨ Acv‡iwUs wm‡÷g¸‡jvi †P‡q me©v‡c¶v †ekx cvidi‡gÝ w`‡Z m¶g|
gvB‡ vmdU cieZ©x‡Z DB‡ÛvR jsnb© GwWkb evRv‡i Qvoevi c`‡¶c wb‡”Q|

4. Computer Fundamental
Created by: Md. Kamrul Hassan Bappy Page: 4 of 6 E-mail: info@khola-janala.com
What is Computer’s Booting Process?
Kw¤úDUv‡ii eywUs cÖ‡mm wK?
Kw¤úDUvi Ab Kivi ci †h Kvj ¯Œx‡b Kw¤úDUv‡ii nvW©Iq¨vi I Ab¨vb¨ m¤úwK©Z wewfbœ Z_¨ Avm‡Z _v‡K ZvB
Kw¤úDUv‡ii eywUs cÖ‡mm| GB mg‡q ÷vU© Avc wW¯‹ n‡Z Z_¨ i¨v‡g P‡j Av‡m Ges ev‡qvm, Autoexec.bat, Config.sys
BZ¨vw` dvBj¸‡jv †jvW nq|
How To Start A Computer?
Kw¤úDUvi Pvjy Kiv hvq wKfv‡e?
cÖ_‡g Kw¤úDUv‡ii we`y¨r mieiv‡ni hveZxq jvBb wVK Av‡Q wKbv Zv †`‡L myBP Ab Ki‡Z n‡e|
GLb Casing Box Gi Power Switch evU‡b wUc w`‡q Kw¤úDUvi ON Ki‡Z n‡e|
wKQy¶Y A‡c¶v Kivi ci KZ¸‡jv Folder/Icon mn Windows Desktop Screen cÖ`wk©Z n‡e|
Introducing on Windows Screen:
DB‡ÛvR Gi ¯Œxb cwiwPwZt
c~‡e©B ejv n‡q‡Q Kw¤úDUv‡ii Power On K‡i we`y¨r ms‡hvM mva‡bi ci hw` Kw¤úDUviwU Windows Operating
System Gi gva¨‡g P‡j Z‡e Aí¶‡bi g‡a¨ Avcwb DB‡Ûv‡Ri Screen ‡`L‡Z cv‡eb| Z‡e Avcbv‡K Rvb‡Z n‡e DB‡ÛvR
¯Œx‡bi †ek wKQy ˆewkó¨ i‡q‡Q| hv †`L‡jB Avcbv‡K eyS‡Z n‡e Kw¤úDUv‡ii GwU Windows Operating System Gi
¯Œxb Ges KvR m¤úv`b Kivi Rb¨ mew`K †_‡K cÖ¯‘Z|
DB‡Ûv ¯Œx‡bi GB ˆewkó¨ ¸wj wb‡gœ Zz‡j aiv njt
My Computer t ¯Œx‡bi hveZxq AvBKb ¸‡jvi g‡a¨ My Computer GKwU| GwU w`‡q Kw¤úDUv‡ii nvW©wW‡¯‹i WªvBf
¸‡jv‡K cÖ‡ek Kiv mn dvBj, †cÖvMÖvg BZ¨vw` I‡cb Kiv hvq|
My Documents t wWdvë †mwUs wn‡m‡e GB AvBKbwU ¯Œx‡bi My Computer Gi wb‡PB Ae¯’vb K‡i| Gi g‡a¨
Avgiv †h me Document RwbZ Kvh©vejx m¤úv`b Kwi Zv G‡m Rgv nq|
Recycle Bin t ¯Œx‡bi Ab¨vb¨ AvBKb¸‡jvi mv‡_ Recycle Bin bv‡gI GKwU AvBKb _v‡K| Bnv Kw¤úDUv‡ii Wvóweb
wn‡m‡e f~wgKv cvjb K‡i| Avgiv A‡bK mgq Avgv‡`i AcÖ‡qvRbxq dvBj ¸‡jv gy‡Q †dwj| Zv G‡m GLv‡b Rgv nq| Gici
Recycle Bin Empty Kivi gva¨‡g dvBj ¸‡jv Kw¤úDUvi n‡Z wPiZ‡i gy‡Q w`‡Z nq| wimvB‡Kj web n‡Z GKevi
gy‡Q †djv dvBj Avi KLbI †diZ Av‡m bv|
Taskbar t Windows ¯Œx‡bi wb‡Pi w`‡K AbyfywgKfv‡e (Horizontally) we`¨gvb Ber wUi bvg Windows Task
Bar. Bnv A‡b‡Ki Kv‡Q Avevi ÷vUvm evi wn‡m‡eI cwiwPZ| Gi mevi Wvb w`‡K _‡K U¨v¯‹ AvBKb| Kw¤úDUvi Pvjy nevi
mg‡qB G¸‡jv †jvW nq| Gi mv‡_ Kw¤úDUv‡ii NwoI Ae¯’vb K‡i| Gi Øviv eZ©gvb mgq Rbv hvq|
Start Button t Windows Taskbar Gi evg w`‡K Ò STARTÓ †jLv GKwU evUb cv‡eb| Gi Øviv Operating
System Gi †h‡Kvb Kvh© m¤úv`b Kiv hvq| Kw¤úDUv‡i Bb÷j Kiv ‡cÖvMÖvgI Gi Øviv Pvjy Kiv hvq| ÷vU© †gby‡Z †h‡q
Avcwb †h Ackb †`L‡Z cv‡ib †m¸‡jv n‡”Q Shutdown, Run, Search/Find cÖf„wZ| Avi mve‡gby¸‡jvi g‡a¨ cv‡eb
Programs, Documents, Settings cÖf„wZ| Z‡e DB‡ÛvR G·wc‡Z wKQyUv wfbœZv j¶¨ Kiv hvq|

5. Computer Fundamental
Created by: Md. Kamrul Hassan Bappy Page: 5 of 6 E-mail: info@khola-janala.com
Using of Start Button:
÷vU© evU‡bi e¨envit
Kw¤úDUv‡i Avcwb bigvj A_ev, mvBb&‡UwdK Dfq cÖKvi K¨vjKz‡jUi e¨envi Ki‡Z cvi‡eb| GRb¨ gvD‡mi mvnv‡h¨
wbgœwjwLZ KvRwU Ki“b|
Opening Calculator: Start > Programs > Accessories > Calculator
Avcwb Avcbvi wjLvi Kvh©vw` Kw¤úDUv‡i IqvW©c¨vW e¨envi K‡i m¤úv`b Ki‡Z cv‡ib| GRb¨ Avcwb wb‡Pi KvRwU Ki“b|
Opening a word processing program: Start > Programs > Accessories > WordPad
Kw¤úDUv‡i mvaviY Qwe AvuKv AuvwKi Kv†R Avcwb †cB›U ‡cÖvMÖvg e¨envi Ki‡Z cv‡ib| wb‡gœ †cB›U †cÖvMÖvg †Lvjvi c×wZ †`qv
nj|
Open Paint Program: Start > Programs > Accessories > Paint
How To Create A Folder?
wKfv‡e ‡dvìvi ‰Zix Kiv hvq?
DB‡Ûv‡Z gvD‡mi Right Button Øviv wK¬K Ki“b|
New mve‡gby‡Z hvb|
Folder G wK¬K Ki“b|
‡h‡Kvb GKwU bvg w`b|
Kx †ev‡W©i Enter G Pvc w`b|
How To Delete A Folder?
wKfv‡e ‡dvìvi ‡gvQv hvq?
Folder wm‡j± Ki“b|
Press Delete Key [ Kx‡evW© †_‡K ]
Yes G wK¬K Ki“b|
Gevi †W¯‹U‡ci ¯Œxb n‡Z Recycle Bin Gi Dci gvD‡mi Right Button Øviv wK¬K Ki“b|
†h g¨v‡mR e·wU Avm‡e Zv‡Z Yes evU‡b wK¬K Ki“b|
How To View File Or Folder?
wKfv‡e dvBj ev †dvìvi Gi welqe¯‘ †`Lv hvq?
Folder wm‡j± Ki“b|
gvD‡mi Right Button Øviv wK¬K Ki“b|
Properties G hvb|
General U¨v‡e hvb|
‡`Lv †kl n‡j OK evU‡b wK¬K Ki“b|
How To Shut Down A Computer?
wKfv‡e Kw¤úDUvi eÜ Kivi hvq?
U¨v¯‹ev‡ii Start †Z wK¬K Ki“b|
Shut Down G wK¬K Ki“b|
GLb Shut Down AckbwU Choose Ki“b|
OK ‡Z wK¬K Ki“b|
AT Casing Gi †¶‡Î Ò It’s now save to turn off your computer Ó ¯ŒxbwU Avm‡j Kw¤úDUv‡ii cvIqvi myB‡P
Pvc w`‡q Kw¤úDUvi eÜ K‡i w`b| Gevi ‰e`y¨wZK †gBb myBP Ad Ki“b|
ATX Casing Gi †¶‡Î Ò It’s now save to turn off your computer Ó ¯ŒxbwU G‡m Kw¤úDUvi A‡Uv‡gwUK eÜ
n‡q hv‡e| cvIqvi myB‡P Pvc w`‡q Kw¤úDUvi eÜ K‡i w`evi cÖ‡qvRb n‡e bv| Gevi mivmwi ‰e`y¨wZK †gBb myBP Ad
Ki“b|

6. Computer Fundamental
Created by: Md. Kamrul Hassan Bappy Page: 6 of 6 E-mail: info@khola-janala.com
How To Restart A Computer?
wKfv‡e Kw¤úDUvi cybivq Pvjy Kivi hvq?
Av‡Mig‡Zv GeviI U¨v¯‹ev‡ii Start †Z wK¬K Ki“b|
Shut Down G wK¬K Ki“b|
GLb Restart AckbwU Choose Ki“b|
OK ‡Z wK¬K Ki“b|
‡`Lv hv‡e cybivq eywUs cÖ‡mm Pvjy n‡q Kw¤úDUvi mPj n‡q‡Q|
mywcÖq cÖwk¶bv_©xe„›`,
ï‡f”Qv iBj| D³ Av‡jvPbv †_‡K Avgiv Kw¤úDUv‡ii Gi m¤úwK©Z wewfbœ Z_¨ Ges DB‡ÛvR
wKfv‡e cwiPvjbv Kiv hvq Zv m¤ú©‡K Rvbjvg| AvkvKwi Zv Avcbviv †R‡b‡Qb Ges e¨envi Ki‡Z †c‡i‡Qb| ïay
Rvb‡jB Pj‡e bv| GB DB‡ÛvR e¨envi m¤ú‡K© my¯úó avibv _vK‡Z n‡e| hw` †Kvb Ask e¨envi Ki‡Z Amyweav
nq Z‡e wk¶‡Ki mnvqZv wb‡q Gi mgvavb Ki“b| c~bivq mevB‡K A‡bK A‡bK ï‡f”Qv Rvwb‡q Kw¤úDUvi
dvÛv‡g›Uvj c‡e©i mgvwß Kijvg|
********************
ï‡f”Qv‡š—,
MD. KAMRUL HASSAN BAPPY
(Diploma in Computer Science and Information Technology)