A computer system is a collection of physical components that work together to allow a user to interact with a digital device. The physical components of a computer system are known as hardware.

The most important hardware in a computer system is the central processing unit, or CPU. The CPU is responsible for executing the instructions that make up a computer program. Other important components include the memory, which stores the program instructions and data, and the input and output devices, which allow the user to interact with the computer.

Computer systems are typically divided into two categories: desktop and …