Words, Word length, bytes, bits

It's always confusing, and now I'm going to fix it:

Words, Word length, bytes, bits

Word:

Bit (bit): represents a binary digit 0 or 1, which is the most basic unit of computer storage processing information.

Byte (byte): One byte consists of 8 bits. It represents 8 binary digital as a complete processing unit. Now the use of the "National Information Interchange Standard Code"--ASCII coding (by the U.S. National Standards Committee)

For example: The binary encoding of the character "A" is "0100 0001" i.e. 41H or 65D

The binary code for "#" is "0010 0011" i.e. 23H or 35D

Word: 16 bits is a word (that is, two bytes is a word), it represents the computer processing instructions or data binary digits, is the computer for data storage and processing units. Usually called 16 bits is a word, 32 bits is a double word, 64 bits is two double word.

Word Length: The number of digits is called length. , different grades of machines have different word lengths. For example, a 8-bit machine, its 1 characters equals 1 bytes, and the word length is 8 bits. If it is a 16-bit machine, its 1 characters are made up of 2 bytes, with a word length of 16 bits.

the difference between byte and word length: Since the commonly used English characters are represented by 8-bit binary, the 8 bits are usually referred to as one byte. The length of the word word is not fixed, and for different CPUs, the length of word lengths is not the same. A 8-bit CPU can handle only one byte at a time, while a 32-bit CPU can handle 4 bytes at a time, and a CPU with a 64-bit word length could handle 8 bytes at a time.