Concepts and differences of bit, bit, byte and word

1、 position （bit）
From English bit, Transliterated as “ The bit ”, Represents binary bits . Bit is the smallest unit of data storage in a computer ,11010100 It's a 8 Bit binary number . A binary bit can only represent 0 and 1 Two kinds of state （21）; Two binary bits can represent 00、01、10、11 Four kinds of （22） state ; Three bit binary numbers can represent eight states （23）…….

2、 byte （byte）
Bytes come from English Byte, Transliterated as “ Byatt ”, Used to use capital “B” Express .
Byte is the basic unit of data processing in a computer . A computer stores and interprets information in bytes , Specifies that a byte consists of eight binary bits , namely 1 Bytes are equal to 8 A bit （1Byte=8bit）. The minimum number of octets is 00000000, The maximum is 11111111; Usually 1 Bytes can be stored in one ASCII code ,2 Byte can store a Chinese character national standard code .

3、 word
When the computer processes data , One access 、 The length of data processed and transmitted is called word （word）. A word usually consists of one or more （ It's usually the whole number of bytes ） Byte formation . for example 286 The word of Microcomputer 2 Byte composition , Its word is long as 16;486 The word of Microcomputer 4 Byte composition , Its word is long as 32 It's a plane .
The word length of a computer determines its CPU How many actual digits are handled in one operation , It can be seen that the longer a computer word is , The better the performance .

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1 The bit （bit） =  1 Bit binary

1 byte （Byte）= 8 The bit (bit)=8 Bit binary

word （word）:  One access 、 The length of data processed and transmitted is called word （word）, Consists of multiple bytes .