Two bytes to represent all characters in all writing systems in the world in a single set. The current standard, though, is Unicode which uses One byte character sets canĬontain 256 characters. 0-127).Įight bits can have 256 possible states. 00,01,10,11.įour bits can have 16 possible states. Character sets used today in the US are generallyĨ-bit sets with 256 different characters, effectively doubling the ASCII set. ASCII is a 7-bitĬode - one bit (binary digit) is a single switch that can be on (American Standard Code for Information Interchange). The starting point for the character sets we find on most computers was ASCII
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