What is the difference between bits , bytes and word lengths in computers?

1) Bits: The smallest unit of data in the computer, and the most direct and basic operation in the computer is the operation of binary bits.

2) Bytes: 8 binary bits make up 1 byte (b), and 1 byte can store 1 English letter or half a Chinese character. Bytes are the basic unit of measurement for storage space, and the capacity of both memory and disk of a computer is expressed in bytes.

3) Word length: In computer technology, the number of binary digits that the CPU can process at one time in a unit of time (at the same time) is called the word length.

They have different concepts.

The size of the storage is also different.

Bit: A binary bit is the basic unit of information stored by a computer, representing a binary digit with a value of 0 or 1.

Bytes: 8 consecutive binary bits are one byte, which can store the encoding of 1 Western character.

Word: 2 bytes are a word.

Word length: Generally speaking, the number of digits of a set of binary numbers processed by a computer at the same time is the "word length". Word length has a lot to do with the function and use of the computer, and is an important technical indicator of the computer.

1 byte

An 8-bit binary unit of numbers is called a byte. A byte is the most basic unit of capacity used in a computer to express the size of storage space, along with kilobytes (KB), megabytes (MB), and gigabytes (GB). There are the following conversion relationships between them:

The 2 word is the basic unit of processing data or information in a computer.

3 A word is made up of bytes, and the number of bits that make up a word is usually called the length of the word.

For example, if a "character" consists of two "bytes" (16 bits), the "word length" of the word is 16 bits. Longer word length can process more bit information, different types of computers have different word lengths, "word length" is an important sign of computer function, "word length" longer means stronger function.

Computer (computer), commonly known as computer, is a modern electronic computer used for high-speed calculation, which can perform numerical calculations, logical calculations, and also has the function of storage and memory. It is a modern intelligent electronic device that can operate according to the program and process massive amounts of data automatically and at high speed.

A computer that consists of a hardware system and a software system without any software installed is called bare metal. It can be divided into five categories: supercomputers, industrial control computers, network computers, personal computers, and embedded computers, and the more advanced computers include biological computers, photonic computers, quantum computers, etc.

Inventor of the computer John von Neumann. The computer is one of the most advanced scientific and technological inventions of the 20th century, which has had an extremely important impact on human production and social activities, and has developed rapidly with strong vitality. Its application field has expanded from the initial military scientific research application to all fields of society, and has formed a huge computer industry, which has led to technological progress on a global scale, which has triggered profound social changes, and computers have spread all over ordinary schools, enterprises, and institutions, and have entered the homes of ordinary people, becoming an indispensable tool in the information society.

The application of computers is becoming more and more common in China, after the reform and opening up, the number of computer users in China has been rising, and the level of application has been continuously improved, especially in the fields of the Internet, communications, and many other fields. From 1996 to 2009, the number of computer users increased from 6.3 million to 67.1 million, and the number of networked computers increased from 10,000 to 59.4 million. Internet users have reached 100 million, and there are 100 million mobile Internet users on the wireless Internet, of which 100 million mobile Internet users have access to the Internet, ranking first in the world.

1.Bits or bits. An electronic wiring unit is called a "bit", and it has two stable operating states, which are denoted by "0" and "1", respectively. is the smallest unit of data in a computer.

2.bytes. An 8-bit binary number is called a byte (abbreviated b). It is the basic unit of information stored by a computer and the most basic unit of capacity for the size of a computer's storage space.

3.Word. A number of bytes make up a "word". A "word" can hold a computer instruction or a piece of data.

4.Word. The length of the binary that each word in the CPU can contain is called the "word size".

The longer the word length, the more information can be transmitted in the same amount of time.

Kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB).

1kb=1024b=210b

1mb=1024kb=220b

1gb=1024mb=230b

1tb=1024gb=240b

Bits: Binary is used in digital circuits and computer technology, with only "0" and "1", where either "0" or "1" is a "bit" in the CPUWord.

In computer technology, the number of bits of binary numbers that a CPU can process at a time per unit of time (at the same time) is called word length. Therefore, a CPU that can process data with a word length of 8 bits is usually called an 8-bit CPUSimilarly, a 32-bit CPU can process binary data with a word length of 32 bits per unit of time.

The difference between bytes and word length: Since commonly used English characters can be represented by 8-bit binary, 8-bit is usually referred to as a byte. The length of the word length is not fixed, and the length of the word length is different for different CPUs.

An 8-bit CPU can only process one byte at a time, while a 32-bit CPU can process 4 bytes at a time, and a 64-bit CPU can process 8 bytes at a time.

(1) bit: represents a binary number 0 or 1, which is the most basic unit of computer storage and processing information. The x0d x0a(2) byte is the basic unit of data processing in a computer.

Information is stored and interpreted in bytes in computers, and a byte is made up of eight binary bits, i.e., one byte is equal to eight bits (1 byte = 8 bits). The minimum eight-digit binary number is 00000000 and the maximum is 11111111; Usually 1 byte can be stored in an ASCII code, and 2 bytes can be stored in a Chinese national standard code. x0d x0a(3) word length:

The number of bits that each word in a computer contains is called the word length. Depending on the computer, there are two types of word lengths: fixed and variable. Fixed word length, that is, the word length is fixed no matter what the situation; Variable word length, then its length is variable within a certain range.

The word length calculated by x0d x0a(4) refers to the number of binary digits it can process at one time. The rate at which a computer processes data is naturally related to the number of bits it can process at one time and the speed of the calculation. If one computer is twice as long as the other, even if both computers are at the same speed, the former can do twice as much work in the same amount of time.

The "bits" and "bytes" in a computer are the smallest units of information that a computer processes to process.

The data in the computer is represented by 0 and 1, where 0 or a 1 is called a bit, 8 bits are called a byte, two bytes are called a word, and 4 sections are called dword. 1m = 1024 kb, 1 kb = 1024 byte (byte means byte), 1 byte = 8 bit (bit means binary bits). So 10m = 10 * 1024 * 1024 * 8 (bits) and a word (word) is composed of several binary bits, which are generally integer multiples of bytes.

For example, 8 bits, 16 bits, 32 bits, and now microcomputers have reached 64 bits. If calculated by 16 bits, then 10m can have 10*1024*1024*8 16=5242880 words. Press 8 bits, 32 bits, 64 bits to get the corresponding results.

1. Single byte (unsigned): 0 to 255; (signed): -128 to 127.

2. Double-byte (unsigned): 0 to 65535; (signed): -32768 to 32765.

3. Four-byte (unsigned): 0 to 4294967295; (signed): -2147483648 to 2147483647.

Unsigned: from 0000 0000 (0) to 1111 1111 (2 8-1 = 255).

Signed: There is a sign for the symbol Wu Ruined (1 for negative, 0 for positive) and positive numbers from 0 000 0000 (0) to.

0 111 1111 (2 7-1 = 127, the first digit 0 is positive). Negative: from 1 000 0000 to 1 111 1111 (-(2 7-1) = -127).

Negative numbers are represented by complements in computers, and the complements of -0 are 0000 0000 which is consistent with the representation of +0, so 0000 0000 is used to represent +0 and -0. So 1 000 0000 does not mean -0 but -128.