... are examples of output devices. The type of printer that produces the highest print quality print and uses a toner cartridge is called a laser printer. A cheaper printer, which squirts a jet of ink at the paper is called ink-jet printer. There are two types of memory: one retains data when the power is removed and is called ROM; the other loses data when the power is turned off and is called RAM. ROM is classed as non-volatile whilst RAM is classed as volatile. Dvd can store more data than a CD-ROM and is used to store films as well as data. ...

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