What is the amount of information contained in an eight-bit binary number in a computer system?

The amount of information contained in an eight-bit binary number in a computer system is called "byte". Byte is a unit of measurement used by computer information technology to measure storage capacity. It also represents data types and language characters in some computer programming languages; a byte is composed of 8 binary bits, which requires at least 10 to represent a four-digit decimal number. Bit binary bit.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The amount of information contained in an eight-bit binary number in a computer system is called "byte".

Byte (Byte) is a unit of measurement used by computer information technology to measure storage capacity. It also represents data types and language characters in some computer programming languages.

One byte stores an 8-bit unsigned number, and the stored value range is 0-255. Like characters, byte type variables only require one byte (8 bits) of memory space to store.

Byte is the unit of binary data. A byte is usually 8 bits long. However, some older computer architectures use different lengths. To avoid confusion, in most international literature the word byte is used instead of byte.

A byte consists of 8 binary digits, which means at least 10 binary digits are required to represent a four-digit decimal number. Byte is a unit of measurement used by computer information technology to measure storage capacity, and also represents some computer programming.

A byte contains 8 binary bits. The unit of data storage is "Byte", and the unit of data transmission is mostly "bit" (also known as "bit"). One bit represents a 0 or 1 (i.e. binary).

In most computer systems, a byte is an 8-bit long data unit. Most computers use a byte to represent a character, number, or other character. A byte can also represent a series of binary bits.

In some computer systems, 4 bytes represent a word, which is the unit of data that the computer can efficiently process when executing instructions. Some language descriptions require 2 bytes to represent a character, which is called a double-byte character set. Some processors are capable of handling double-byte or single-byte instructions. Bytes are often abbreviated as "B" and bits are often abbreviated as a lowercase "b". The size of computer memory is usually expressed in bytes.

Byte conversion

Common storage units mainly include bit (bit), B (byte), KB (kilobyte), MB (megabyte) ), GB (gigabytes). The main conversion relationships between them are as follows:

1B=8bit 1KB=1024B 1MB=1024KB 1GB=1024MB

where B is the abbreviation of Byte.

For example, if the computer's memory is 4GB, how many 0s or 1s can it store (that is, how many bits can it store)? 4×1024×1024×1024×8 bits. Because one 1024 is 210, the result is equivalent to 32 230! That's how much data a 4GB memory stick can store.

The same goes for hard disks. For example, if a computer's hard disk is 500GB, then the data it can store is 500×1024×1024×1024×8 bits, which means it can store 4000 0s or 1s as many as 230.

Finally, a little common sense. For example, if you buy a 500GB hard drive, the actual 500GB will definitely not be displayed. So why is this? Because the measurement units are different! When buying a hard drive or USB flash drive, everything the seller says, including what is written on the box, is in units of 1000, while computers are in units of 1024.

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