5
Basic Binary Arithmetic
Decimal system - Base 10
Binary system - Base 2
Octal system - Base 8
Hexadecimal System - Base 16
Decimal system:
2745.214 = 2x103 +7x102 + 4x101 + 5x100 + 2x10-1 +1x10-2 + 4x10-3
Binary system:
1011.101 = 1x23 + 0x22 + 1x21 + 1x20 + 1x2-1 + 0x2-2 + 1x2-3
                         = 8 + 0 + 2 + 1 + 0.5 + 0 + 0.125
                = 11.62510 
Each of the binary numbers is called a “bit”