Hexadecimal / Hexagon

Akronim: Hex

HEX
1. Hexadecimal. A base 16 numbering system, which uses the digits 0, 1,
2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F. So:

Hex
Decimal
Octal
Binary


0
0
0
0000


1
1
1
0001


2
2
2
0010


3
3
3
0011


4
4
4
0100


5
5
5
0101


6
6
6
0110


7
7
7
0111


8
8
10
1000


9
9
11
1001


A
10
12
1010


B
11
13
1011


C
12
14
1100


D
13
15
1101


E
14
16
1110


F
15
17
1111


10
16
20
10000


Hexadecimal is used in IT because of its close relationship to Binary -
as can be seen from the above table each hexadecimal digit corresponds to 4
bits. This means that the hexadecimal numbers 0 to FF cover all the possible
eight bit values of a byte (0 to 255 decimal).
Depending on the context, hexidecimal numbers are sometimes prefixed with
0x or # to indicate that the number is hexadecimal and not decimal.
2. Hexagonal. A flat six sided shape.

Inne definicje z Informatyki na literę H.