Computers use the binary system because it is easy to represent the two states 'on' and 'off' inside a computer. These two states are represented by voltages. 0 (Zero) volts is used to represent 0, and a voltage usually between 1 and 5 volts depending upon the types of computer, is used to represent 1. Computer uses different units to store data. A bit is a binary digit, the smallest increment of data on a computer. A bit can hold only one of two values: 0 or 1, corresponding to the electrical values of off or on, respectively. Because bits are so small, you rarely work with information one bit at a time. Bits are usually assembled into a group of eight to form a byte. A byte contains enough information to store a single ASCII character, like "h". A kilobyte (KB) is 1,024 bytes, not one thousand bytes as might be expected, because computers use binary (base two) math, instead of a decimal (base ten) system. Computer storage and memory is...
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