How long is a word ?
32 bit
8 bit
4 bit
Depends on the computer
Suppose 28 is a number in base 9 system. Convert this number to base 8 number
32
28
82
16
11110+11011+10101=
1101010
1001110
1001001
11101010
The number system used almost universally humans is called
Binary
Octal
Decimal
Hexa
12 in octal is similar to what in decimal
10
12
41
13
The obvious reason for the usage of binary numbers instead of decimal numbers is
Ideal for coding purpose involving two state nature of components.
Easy to code
Processing is faster
Easy to use
Binary numbers need more places for counting because
They are always big numbers
Any number of 0's can added in front of them.
Binary base is small
0's and 1's have to be properly spaced apart.
How is the sign of the number represented ?
The first number of the word is sign
The first bit of the word is reserved for the sign of the number.
The magnitude of the number
The last (least significant) bit.
