Thebook"BasicsofInformationTechnology",hasbeenwrittenfortheDiplomastudentsofUBTER,UttarakhandasperAICTEsyllabusfortheirfirstsemestercourse.Computersplayanimportantroleinoureverydaylives.Inadditiontocommunicationmedialiketelevision,radioandnewspaper,wenowhaveanothercommunicationmedium,i.e.,computers.Weusecomputerstoe-mail,tochat,fortheInternetbrowsing,forteleconferencing,etc.Wealsousethemfore-learning,e-commerce,e-banking,e-governance,e-ticketingandformanymorethings.Andtheinterestingpartis,whileweinteractwithothermedialiketelevision,radio,newspaper,etc.tomerelygetinformation,theinteractionincomputersistwoways-wecanbeacreatoraswellasauser.Wemayuseacomputerasamediumtogetmoreinformation,asatooltoperformcertainactivities.