MEMORY

In its very essence computers are a combination of a number of digits.

Bit: 0 or1 (one digit)

8 bits=00000000 or 11111111 or 00001111 or 11110000 and so on...... = 1 byte

1000 Bytes = 1 kilo byte
1000 kilo bytes = 1 megabyte
1000 Megabytes = 1 Gigabytes
1000 Gigabytes = 1 Terrabytes

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Everything a computer does is made up of 0s nd 1s
there is an ASCii code
Eg. the ascii code for "a" is 01100001
       the ascii code for "b" is 01100010