How many different codes can be programmed in one byte?

A byte can produce up to 256 different codes. Because there are 8 bits in a byte, and each bit has two options: 0 and 1, so according to the theory of permutation and combination, there are 2 in total. 8 different values ​​to the power of 8, that is, 256 different codes.

#The operating environment of this article: windows10 system, thinkpad t480 computer.

How many different codes can be programmed in one byte?

The specific explanation is as follows:

1 byte has 8 bits, and each bit has two options: 0 and 1. According to the theory of permutation and combination, there are a total of 2 to the 8th power. different values, that is, 256 different codes.

The so-called byte Byte is a unit composed of eight bits, that is, 8 bits make up 1 Byte. In computer science, to represent ASCII characters, bytes are used to record letters and some symbols. For example, character A is represented by "01000001".

ASCII code uses a specified 7-bit or 8-bit binary number combination to represent 128 or 256 possible characters. Standard ASCII code, also called basic ASCII code, uses 7 binary digits (the remaining 1 binary digit is 0) to represent all uppercase and lowercase letters, numbers 0 to 9, punctuation marks, and special controls used in American English. character.

Extended information:

The conversion relationship between bytes and other codes is as follows:

1. ASCII code: one English letter (not case-sensitive) occupies one byte space. A sequence of binary numbers, used as a digital unit in a computer, is generally an 8-bit binary number. Converted to decimal, the minimum value is -128 and the maximum value is 127. For example, an ASCII code is a byte.

2. UTF-8 encoding: One English character is equal to one byte, and one Chinese character (including traditional Chinese) is equal to three bytes. Chinese punctuation occupies three bytes, and English punctuation occupies one byte

3. Unicode encoding: One English is equal to two bytes, and one Chinese (including traditional Chinese) is equal to two bytes. Chinese punctuation occupies two bytes, and English punctuation occupies two bytes

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