is zi.
Chinese characters, up and down structure, with a total of 6 strokes. The original meaning is that women settle in their husbands' homes and have children, and later it refers to symbols used to record languages. In the computer field, for a particular computer design, a word is a term used to represent its natural data unit. In this particular computer, a word is a fixed-length group of bits that it uses to process transactions at one time. The number of digits in a word (that is, the word length) is an important feature in the structure of a computer system.
word length is reflected in many aspects of computer structure and operation. The size of most registers in a computer is one word long. The typical numerical value processed by computer may also be in word length. The data transfer unit between CPU and memory is also usually one word long. In addition, the address used to indicate a storage location in memory is often in word length.
Characters of modern computers:
The word length of modern computers is usually 16, 32 and 64 bits. Other used word lengths are: 8, 9, 12, 18, 24, 36, 39, 4, 48, 6; Slab is another early example of word length. Some of the earliest computers were decimal rather than binary, and usually had 1 or 12 decimal digits as the word length, and some early computers had no fixed word length at all.
sometimes the word length is defined as a specific value to maintain compatibility with early computers. One example is the most common microprocessor in personal computers.
the IA-32 architecture in them is an extension of the early Intel886 architecture with 16-bit word length. The IA-32 processor still supports 886(x86) programs, so in IA-32, the meaning of "word" is still 16 bits, despite the fact that it runs more like a 32-bit computer (especially when the default operand is 32 bits). Similarly, in the newer x86-64 architecture, the word is still 16-bit, although 64-bit operands are more common.