Well let’s start by breaking it down to the smallest piece of information that a computer can handle. Remember that a computer can only really understand 0s and 1s. Therefore in ASCII code any number or letter of the alphabet can be read as:
A = 01001010
Each 0 and each 1 is called a BIT
The eight bits that make up each alpha-numeric character is called a BYTE
1024 BYTES is called a KILOBYTE (KB)
1024 KB is called a MEGABYTE (MB)
1024 MB is called a GIGABYTE (GB)
Every file on a computer takes up some space measured in the denominations above.
Some typical sizes are:
Letter to Mom 20KB
Program to type letter 50MB
Picture of Mom 100KB
Hard Drive in computer 100GB
Floppy Disk 1.44MB
CDROM 650MB
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