1. Slide Show A Short Note For Lecturer A Short Note For Lecturer Institute: Khanjahan Ali College, Bagerhat Subject: Computer Education (Theoretical) Class: Higher Secondary, 1st Year Chapter: 1, Part 5, Number System Font: Sutonny MJ, Arial, Times New Roman Slides : 8 Navigation: (→↓ Next), (  ← Previous), (Esc Close) Institute: Khanjahan Ali College, Bagerhat Subject: Computer Education (Theoretical) Class: Higher Secondary, 1st Year Chapter: 1, Part 5, Number System Font: Sutonny MJ, Arial, Times New Roman Slides : 8 Navigation: (→↓ Next), (  ← Previous), (Esc Close) Presented By Md. Mostafizur Rahman Lecturer, Computer Education Contact No: +8801718976860, +8801915566977 E-Mail : mostafiz2000@gmail.com mostafiz2000@gmail.com Website : http://www.rabita.webnode.com http://www.rabita.webnode.com Presented By Md. Mostafizur Rahman Lecturer, Computer Education Contact No: +8801718976860, +8801915566977 E-Mail : mostafiz2000@gmail.com mostafiz2000@gmail.com Website : http://www.rabita.webnode.com http://www.rabita.webnode.com

2. msL¨v c×wZ t wbw`©ó msL¨K AsK e¨envi K‡i msL¨v MVb Kiv I GB msL¨v Øviv wewfbœ cÖKvi wnmve wbKvk Kivi c×wZ‡K msL¨v c×wZ e‡j| Aa¨vq 1 t wØZxq Ask, msL¨v c×wZ msL¨v c×wZ cÖavbZ `yB cÖKvi 1| cwRkbvj msL¨v c×wZ t G msL¨v c×wZ‡Z GKwU msL¨vi gvb Zvi cÖwZwU As‡Ki ¯’vbxq gv‡bi mgwói mgvb| †hgb `kwgK msL¨v c×wZ, evBbvix msL¨v c×wZ BZ¨vw`, (542.258)10 2| bb cwRkbvj msL¨v c×wZ t G msL¨v c×wZ‡Z GKwU msL¨vi gvb Zvi cÖwZwU As‡Ki wbR¯^ gv‡bi mgwói mgvb| †hgb †ivgvb msL¨v c×wZ, nvqv‡iv wM­wd· msL¨v c×wZ| XVI

3. 1| `kwgK msL¨v c×wZ (ˆ`bw›`b wnmve wbKv‡k cÖ‡qvRb) 2| evBbvix msL¨v c×wZ (Kw¤úDUv‡ii B‡j±ªwb· mvwK©Umg~n GB c×wZ‡Z KvR K‡i|) 3| A±vj msL¨v c×wZ (†cÖvMÖvwgs Kivi mgq evBbvix AsK¸‡jv msw¶ß Ki‡Z wZb wWwR‡Ui A±vj †KvW e¨envi Kiv nq|) 4| †n·v‡Wwm‡gj msL¨v c×wZ (†cÖvMÖvwgs Kivi mgq evBbvix AsK¸‡jv msw¶ß Ki‡Z Pvi wWwR‡Ui †n·v‡Wwm‡gj †KvW e¨envi Kiv nq|) G Aa¨v‡q PviwU msL¨v c×wZ wb‡q Av‡jvPbv Kiv n‡e|

4. Decimal Binary Octal Hexadecimal 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 0 1 msL¨v c×wZ 10 2 8 16 Base DigitNumber System

5. BinaryOctalDecimalHexaDecimal 0000 1111 10222 11333 100444 101555 110666 111777 10001088 10011199 10101210A 10111311B 11001412C 11011513D 11101614E 11111715F 10000201610 wewfbœ msL¨v c×wZi g‡a¨ Zzjbv

6. cvi¯úvwiK iƒcvšÍi 12 wU c×wZ 3 wU ‡KvW c×wZ BO H B B B O H OH HO 6 5 4 3 2 1 D D D B O H fvM-¸b c×wZ 9 8 7 DB O H D D NvZ c×wZ 12 11 10 O=Octal, H=Hexadecimal, B=Binary, D=Decimal

7. Binary  Oct 000  0 001  1 010  2 011  3 100  4 101  5 110  6 111  7 A±vj †KvW Binary  Hexa 0000  0 0001  1 0010  2 0011  3 0100  4 0101  5 0110  6 0111  7 1000  8 1001  9 1010  A 1011  B 1100  C 1101  D 1110  E 1111  F wZb wWwRU †KvW HEXADECIMALCODEHEXADECIMALCODE 4DIGITCODE4DIGITCODE

8. Binary  Oct 000  0 001  1 010  2 011  3 100  4 101  5 110  6 111  7 (567.302) 8 =(?) 2 (567. 302) 8 =(101110111.011000010) 2 1. Octal  Binary

9. (5D7.F0C) 16 =(?) 2 =(010111010111.111100001100) 2 Binary  Hexa 0000  0 0001  1 0010  2 0011  3 0100  4 0101  5 0110  6 0111  7 1000  8 1001  9 1010  A 1011  B 1100  C 1101  D 1110  E 1111  F (5D7.F0C) 16 2. Hexadecimal  Binary

10. Binary  Oct 000  0 001  1 010  2 011  3 100  4 101  5 110  6 111  7 =(2567.304) 8 (10101110111.0110001) 2 =(?) 8 =(010101110111.011000100) 2 3. Binary  Octal

11. (10111010111.1111000011) 2 =(?) 16 Binary  Hexa 0000  0 0001  1 0010  2 0011  3 0100  4 0101  5 0110  6 0111  7 1000  8 1001  9 1010  A 1011  B 1100  C 1101  D 1110  E 1111  F =(5F7.B0C) 16 =(010111110111.101100001100) 2 4. Binary  Hexadecimal

12. Binary  H 0000  0 0001  1 0010  2 0011  3 0100  4 0101  5 0110  6 0111  7 1000  8 1001  9 1010  A 1011  B 1100  C 1101  D 1110  E 1111  F  Oct 000  0 001  1 010  2 011  3 100  4 101  5 110  6 111  7 (746.324) 8 =(?) 16 =(111100110.011010100) 2 =(000111100111.011010100000) 2 =(1E7.6A0) 16 5. Octal  Hexadecimal

13. Binary  Oct 000  0 001  1 010  2 011  3 100  4 101  5 110  6 111  7 Binary  H 0000  0 0001  1 0010  2 0011  3 0100  4 0101  5 0110  6 0111  7 1000  8 1001  9 1010  A 1011  B 1100  C 1101  D 1110  E 1111  F (9F6C.D5) 16 =(?) 8 =(1001111101101100.11010101) 2 =(117554.654) 8 =(001001111101101100.110101100) 2 6. Hexadecimal  Octal