What are the data units commonly used in traditional storage?

Bit refers to bit 0 or 1 of binary number, also called bit. It is the smallest unit of data stored in a computer.

2, byte (byte)

An 8-bit binary number is a byte, abbreviated as B, and a byte is the basic unit for storing data. Usually one byte can hold an English letter or number, and two bytes can hold a Chinese character.

The storage capacity units include kilobytes (KB), megabytes (MB) and gigabytes (GB), and the conversion relationship between them is (at the level of 2 10= 1024).

1B = 8 bit 1KB = 1024 b 1MB = 1024 kb 1GB = 1024 MB 1TB = 1024 GB .

3. Words

A word consists of one or more bytes. Words are related to their length. Word length refers to the number of bits that the CPU can process binary data at the same time, which is divided into 8 bits, 16 bits, 32 bits, 64 bits and so on. For example, the word length of the 486 machine is 32 bits, and the word consists of 4 bytes.

The basic unit of computer data processing. 1 byte consists of 8 binary bits, usually represented by B. In digital devices such as computers, bytes are generally used as the basic unit of storage capacity.

Besides B (bytes), there are KB (kilobytes), MB (megabytes), GB (gigabytes), TB (terabytes), PB (gigabytes) and so on.

Processing or calculating a string of numbers as a whole is called a computer word. A word usually consists of one or more bytes. For example, the word of 286 microcomputer consists of 2 bytes, and its word length is16; The word of 486 microcomputer consists of 4 bytes, and the word length is 32-bit computer.