What does an address in a computer mean?

In computers, an address is a number or byte used to uniquely identify and locate a specific data location in a memory or device. It can be regarded as the house number of the memory and is used to indicate a specific location in the memory.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

In computers, an address is a number or byte that is used to uniquely identify and locate a specific data location in memory or a device. It can be regarded as a house number of the memory, used to indicate a specific location in the memory.

The main memory of the computer is composed of a series of continuous storage units, each storage unit has a unique address. The address can be a simple integer, a binary number, or a hexadecimal number.

By using addresses, a computer can read and write data in memory. When data needs to be read or written to a specific location, the computer uses the address to determine the target location and performs the appropriate operation.

In addition to the main memory, each component and device in the computer can also have its own address and be accessed and controlled through the address. For example, I/O devices, registers, ports, etc. can be uniquely identified and accessed using addresses.

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