কম্পিউটার এর কিছু তথ্য Part 02

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 wewfboe 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 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 mwfq 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|