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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 fax roll is a type of fax paper. The paper is made of thermal paper, similar to the type of paper found in receipt printers on cash registers.

A Graphics Card is a piece of computer hardware that produces the image you see on a monitor. A sound card is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs. A TV tuner card is a kind of television tuner that allows television signals to be received by a computer.

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.