BillGatesistheheadofthesoftwarecompanyMicrosoftandoneoftheworld'srichestmen.HewasbornonOctober28，1955andgrewupinSeattlewithhistwosisters.Hewasaverybrightboy.Scienceandmathwerehistwofavoritesubjectsatschool.Andhedreamedofbeingascientist.
Billfirststartedtoplayoncomputersattheageof13.Atthattime，acomputerwasaverylargemachine.Oncehewasinterestedinaveryoldcomputer.Heandsomeofhisfriendsspentasmuchtimeaspossibleoncomputers.Intheendtheyworkedoutasoftwareprogram.Billsolditfor4200dollarswhenhewasonly17.
In1973BillwenttoHarvardUniversity.In1975BillandhispartnersdevelopedasoftwareprogramcalledBASIC.Thiswasnotthefirstprogramevercreated，butitsinventorswerethefirsttodecidethatpeoplewhowantedtouseitshouldpayforit.BASICwasasuccess.ThenBillleftHarvardtoworkforMicrosoftacompanyhestartedin1975withhisboyhoodfriendPaulAllen.Theythoughtcomputerswouldcomeintoeveryofficeandeveryhomesoon.Sotheybegandevelopingsoftwareforpersonalcomputers.Theyimprovedthesoftwaretomakeiteasierforpeopletousecomputers.AftermanyyearsofhardworkMicrosoftbecomesoneofthemostsuccessfulcompanies.AndBillGatesalsobecomesoneoftherichestbusinessmenintheworld.
根据文章内容将信息卡补充完整。
InformationaboutBillGates
Dateofbirth;October28，1955
Officialposition：HeadofMicrosoft
Dreamjobinchildhood：1
Thingfirstdonein1968：2
Nameofthesoftwareprogram：3
Reasonfordevelopingpersonalsoftware：4
Achievements：.5
.Hebecomesoneoftherichestbusinessmenintheworld.
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