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We all know that computers are complex devices, machines made out of an amalgam of electronic parts and components. But which computer components are essential for a computer to run? Modern PCs can still function fully without Bluetooth or a floppy disk drive. Here is a list of computer components that a computer system cannot do without.

* Motherboard

The motherboard is a very basic unit in any computer system. This is the computer component to which all other internal computer components are attached. It links all the other main components of a computer system together. Consequently, motherboards are sometimes referred to as the "heart" of a computer system.

* CPU

The central processing unit or CPU is the computer component responsible for running programs and applications on the computer. Without a CPU in your computer, you will not be able to do any tasks — you cannot boot to an operating system, you cannot play music, videos and games, and you cannot do any word processing. For a computer to function, it has to have a CPU.

* RAM

Random Access Memory or RAM is another vital computer component.

Lap Desks is the storage media where a computer temporarily stores files and information that it can pull at random when running programs and applications. Together with the CPU, RAM determines the computer’s speed. A computer with a large RAM and a mediocre CPU can actually run faster than a computer with a powerful CPU but low RAM.