2.1.1 DATA REPRESENTATION

How computers represent data?

Data & instructions can be represented electronically by  using two unique binary digits 1 (on) and 0 (off) 

Eight bits is combined together to represent a character.

                       The Difference between Bit and Byte?


Bit

Size

(the amount of information stored) - The smallest unit of data a                                                                  computer can process that                                                                    consist 0 (off) or 1 (on).

Usage - Use to measure data transfer rate of computer                                     communications devices.(Kbps, Mbps, Gbps)

Byte

Size - Eight bits grouped together  as a unit to store a single                       character up to 256 individual characters

Usage - Use to measure storage capacity. (KB,MB,GB,TB,PB)