Number System | Computer Science | HSEB Notes | HSEBGuides.com



Chapter Three: Number System | HSEB Guides 

Detailed notes to follow soon…..
CONVERSION TECHNIQUES:

1.       Decimal to

a.       Binary

®     /2 (Integer Part)

®     *2 (Decimal Part)

b.      Octal

®     /8 (Integer Part)

®     *8 (Decimal Part)

c.       Hexadecimal

®        /16 (Integer Part)

®        *16 (Decimal Part)

2.       Binary to

a.       Octal

®     Table (3-bit)

b.      Decimal

®     *2
For eg. (1011)2
=1*23+0*22 +1*21+1*20

c.       Hexadecimal

®        Table (4-bit)

3.       Octal to

a.       Binary

®     Table (3-bit)

b.      Decimal

®     *8
For eg. (2341)8
=2*83+3*82 +4*81+1*80

c.       Hexadecimal

®     Construct table of:

Octal-Binary (3Bit)

Binary-hexadecimal (4Bit)

4.       Hexadecimal to

a.       Binary

®     Table (4-bit)

b.      Octal

®     Construct table of:

Hexa-Binary (4Bit)

Binary-Octal (3Bit)

c.       Decimal

®     *16
For eg. (12A8)2
=1*163+2*162 +10*161+8*160

1’s and 2’s Complement

9’s and 10’s Complement
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