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Oct 13, 2011 · A less common term is word, which is a given computer architecture’s native unit of data. A word is made up of one or more bytes. For example, a computer that has 64-bit registers and 64- bit memory addressing typically has 64-bit (8-byte) words. A computer executes many operations in its native word size rather than a byte at a time.
The basic unit of information in a computer is the bit; it is simply a quantity that takes one of two values, 0 or 1. A sequence of k bits is a k-bit word. Words have no intrinsic meaning beyond the value of the bits. We can assign meaning to words by interpreting them in various ways. Depending on the context we impose, a word can be viewed as
8 bits representing a number between 0 and 255. an alphabetic character like W or + or 7. part of a character in another alphabet or writing system (2 bytes) part of a larger number (2 or 4 or 8 bytes, usually) part of a picture or sound. part of an instruction for a computer to execute.
- 109KB
- 12
32-bit word (doubleword) 32 232 = 4,294,967,296 ::::; 4 billion 64-bit word (quadword) 64 264 ::::; 18 billion Note the there can be confusion concerning the term word. In general, any binary string is referred to as a word. However, Intel, the world's leading manufacturer of microprocessors, specifically uses the term word to stand for a ...
- Steven Roman
- 1998
Aug 31, 2018 · Word-Oriented Memory Organization Addresses Specify Byte Locations Which is the address of the first byte in word. Addresses of successive words differ by 4 (32-bit) or 8 (64-bit). Addresses of multi-byte data items are typically aligned according to the size of the data. 32-bit 64-bit bytes addr. words words 0000 Addr: 0001 0000 0002 Addr ...
Bit, Byte and Word basic unit of memory is the bit (Binary digIT) one bit is too small to be generally useful, so bits are grouped together: nibble: 4 bits (cf. a hex digit) byte: 8 bits (e.g. 1010 1010 or 1000 0001) word: 1, 2, 4 or 8 bytes (usually 4 or 8) word length depends on processor, operating system, etc. (e.g. 8 bytes for
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Byte-oriented memory organization. Conceptually very large array of bytes (byte = 8 bits) Actually implemented with hierarchy of different memory types. SRAM, DRAM, disk. Only allocate for regions actually used by program. In Unix and Windows NT, address space private to particular “process”. Program being executed.
