IT is abbreviation to the Information Technology this is use of computers to produce store handle and retrieve information.The machines used today are mostly micro computers rather than main frame computers .Word PRoceesssing data bases and spread sheets are just some of the softwere pakcages which have revolutionized work be done more quickly than before but IT has given decission makers the oppertunity to consider far more data when making decissions.
Ink-jet printers:computer printer that creates characters and graphics by spraying very fine magnetically controlled jets of quick drying ink on to paper .
Input device:Device for entering information in to a computer .Input devices include Keyboards ,joysticks,mouse,light pens,touch,sensitive screens graphics tablets speech-REconition divices scanners and vision systems .Compare out put device.
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