<prompt> Bheka isigaba esingezansi bese uphendula umbuzo ngemuva kwalokho ngolimi olufanayo nesigaba: Isigaba: Maphakathi nawo-1980, iMicrosoft ne-IBM bakha iphrojekthi ehlangene yokwakha isizukulwane esilandelayo sesistimu yokusebenza engokomfanekiso; umphumela kwaba yi-OS 2 ne-HPFS. Ngenxa yokuthi iMicrosoft ayivumelani ne-IBM ezindabeni eziningi ezibalulekile, bagcina behlukene; I-OS 2 yahlala iphrojekthi ye-IBM futhi iMicrosoft yasebenza ukuthuthukisa iWindows NT ne-NTFS. Umbuzo: Yimuphi iphrojekthi iMicrosoft ne-IBM abasebenzisana ngayo maphakathi nawo-1980?  <response>: I-OS2 ne-HPFS 