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A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

An MP3 player is an electronic device that can play MP3 digital audio files. It is a type of digital audio player, or portable media player.

A motherboard is the main printed circuit board found in general purpose computers and other expandable systems. It holds, and allows, communication between many of the crucial electronic components of a system, such as the central processing unit and memory, and provides connectors for other peripherals.

A processor is an integrated electronic circuit that performs the calculations that run a computer. Random-access memory is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code.