Using 3 digits in our Decimal counting system, we can count up to 999.

Using 8 bits in the Binary counting system, 11111111, we can count up to 255 which will be 256 different combinations of a 1 and a 0 .. including zero, 00000000.

How the computer interprets this binary number, and its 256 different combinations, depends on what it wants to do with it.

There can be more information in this 8 bit Binary word than just numbers and letters.

http://www.lookuptables.com/
Usually, Engineers dont look at the whole 8 bits, but see is as two 4 bit words.

A 4 bit binary word can count up to 15 and to convert this to 16 Characters (including zero) , we must add 6 more characters being A > F. So a 4 bit word counts 0 > 9 then A > F. This is a Hexadecimal system.

Then 1010 0010 .. in Binary - looks like A2 in Hexadecimal. Youll see the Decimal and Hexadecimal representation of the 8 bit Binary word in the above ASCII lookup Chart.

Another example, See .. All Programs > Accessories > System Tools > Character Map.

Final Exam

There are 10 types of people who understand Binary - Those who do, And those who dont.

Clue
10 in Binary
is 2 in Decimal.

This can be more confusing than just letters and numbers and I hope this helps a little.

Its easier to just let the computer decipher it since it thinks and counts more efficiently than we do.