Binary system

Binary system consist of just two numbers 0 and 1. It is not difficult to perform operations with just 0 and 1, but a computer does it really really fast.

0s and 1s represent a single bit. The word 'bit' stands for binary digit.

0 represents absence of electrical signal, and 1 represents availability of it.

With just one variation of 0 or 1 it is possible to represent just two digits. However these 0s and 1s are grouped into sections of more than 1 slot. They can be grouped into sections, 8, 16, 32, 64.

Maybe you have heard of 32 bit processing. This is what that term means, that a single character will be represented by 32 bits, or combinations of 0s and 1s.

Number of bits also represent how much RAM, or random access memory can be addressed.

Early computers were 8 bits.

Having group of 8 bits became a norm, this group of 8 bits forms a single byte.

Maximum number of variations with 8 bits is 256.

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