What are the word lengths of computers used today?

The computer word lengths used today are both 32 and 64 bits. If the word length of a computer is 32 bits, it means that the binary data that the computer can process as a whole in the CPU is 4 bytes; if the computer word length is 64 bits, it means that the CPU can process 8 words at the same time. section of binary data.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The computer word lengths used today are both 32 and 64 bits.

Computers use binary encoding to represent numbers, characters, instructions and other control information. When the computer is storing, transmitting or operating, a set of binary codes as a unit is called word, and the number of binary digits in a word is called word length.

A CPU that processes data with a word length of 8 bits is usually called an 8-bit CPU. A 32-bit CPU processes binary data with a word length of 32 bits at the same time. Each binary 0 or 1 is the smallest unit that makes up the binary system, called a bit. Commonly used word lengths are 8 bits, 16 bits, 32 bits and 64 bits. An 8-bit encoding is called a byte, which is the basic encoding unit in computers.

Word length has a great relationship with the functions and uses of the computer and is an important technical indicator of the computer. The word length directly reflects the calculation accuracy of a computer. In order to adapt to different requirements and coordinate the relationship between calculation accuracy and hardware cost, most computers support variable word length operations, that is, half word length and full word length can be realized in the machine. (or single word length) and double word length operations. All other indicators being equal, the larger the word length, the faster the computer can process data.

Early microcomputer word lengths were generally 8-bit and 16-bit, and most 386 and higher processors were 32-bit. Most of the computer processors on the market have reached 64-bit, and a few are 32-bit. The word length is determined by the number of data bus lines in the microprocessor's external data path.

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