Seagate MEDALIST 1 GB

I found this Hard disk in my customer Pc, pentium III.... This pc use in primary school, "standard la sekolah rendah agama kampung". But the hard disk look new..... The capasity of the hardisk is 1GB. What the content in that hdd is Windows 98 and other texts document. This pc infected by virus, so what i am to do is format it back and install xp, i replaced the hard disk with 80gb, coz i want to install more software.... 1 gb not enough, rather use pendrive la....heehehehhe.. I think this is 80's or 90's product, nowdays doesnt exist....so what i wanna do with this hard disk..?