Computer Science : S1 : L2 : Number Systems : Hexadecimal

Objectives :

-Understand why hexadecimal is used as a item of data representation

If computers need to store document binary code outside the computer system it is converted into hexadecimal. Hexadecimal is Base-16 with the 16 values being able to be combined to make other values.

1-9 A-F

The first row represents 1-15 and the second row represents 16+

4 bits is called a nibble and 8 bits is called a bite

When converting binary to hex split it two have 4 on the right then whatever is on the left and convert to individual numbers into hexadecimal

10001101

1000 + 1101

8 + D(13)

Hexadecimal to denary

Put them in columns ( 4096 , 256, 16, 1,)

Then times the number by the column number then add them together