000			00386nam a2200145Ia 4500
999			_c11903 _d11903
082			_a005.43 BAR-;
100			_aBarron, D.W.
245		0	_aComputer operating systems
260			_aLondon _bChapman & Hall _c1971
300			_aviii, 135p.
504			_aIncludes index
650			_aMulti programming (Electronic computer)
650			_aOperating systems (Computers)
942			_cBK _2ddc