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Storage unit

When we speak about computers, call the concept of the word (using the English word word) the smallest number of bits, which Computer work, when processing data. The size of the words is an important variable in the design of computer architecture. The word is divided into two half-word.

The size of the words is affected by many other parameters of your computer:

  • For example, the processor registers are usually the size of words.
  • The typical numerical value, which the computer works (such as the programming language C is referred to int) is the size of one word.
  • Address clearly identifying the location in memory is usually the size of words.

    • Today's computers are usually the size of the words set to 16, 32 or 64 bits. The history is used by many other sizes (12, 36, 60 ...), some computers even failed to work in binary, but the decimal and the words in size 10 or 12 digits (in this case was not about bits) and other computer or not firmly fixed word length.

    Microprocessors used in personal computers today are overwhelmingly based on the x86 architecture (eg Intel Pentium and AMD Athlon). The x86 architecture includes several generations. For example, Intel processors in 8086 and 80,286 words is the width of 16 bits for IA-32 (Pentium) is a 32-bit and IA-64 is the width of the words of 64 bits. However, all these processors at the same time, support and instruction set of previous generations. Therefore, the notion of the word (WORD) for the x86 architecture as well as general often means 16 bits. This importance, of course, differs from the concept described in this article.

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