A computer system is the central processing unit (CPU), memory, peripheral devices, and operating system of a computer all working together.
 

Explanation:

Computers are made up of hardware that includes:

* input devices like the keyboard and mouse
* the CPU and memory
* storage devices like the hard drive
* output devices like the printer and monitor

Computers also include software: (the instructions
that tell the computer what to do.

* operating system software
* programs (application software)
 

Learn More:

Look up "Computer" in the TechEncyclopedia.

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