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Compact disc is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. The format was originally developed to store and play only sound recordings but was later adapted for storage of data. DVD is a digital optical disc storage format invented and developed in 1995 and released in late 1996. The medium can store any kind of digital data

An ink cartridge or inkjet cartridge is a component of an inkjet printer that contains the ink that is deposited onto paper during printing. Each ink cartridge contains one or more ink reservoirs; certain producers also add electronic contacts and a chip that communicates with the printer.

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 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.

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.