000			00387n a2200157 a 4500
000			B B
001			006371
005			20220201171536.0
082			_a005.43
100			_aBarstein, Jerene
245			_aComputers and Information Systems
260			_aNew York _bHolt Rinchart & Winston _c1986
300			_axxi,573(1-6)p.
690			_aComputer operating system
908			_aG
999			_c6372 _d6372