00496nam a2200169Ia 4500003000400000005001700004008004100021040001800062041000800080082002100088245005200109250001200161260004200173300002900215650004700244650003500291OSt20240726110052.0210716s1991    xx            000 0 und d  cAIMIT LIBRARY  aeng  a005.45 21bMICR  aMicrosoft ms dos: busers guide and reference /  a1st ed.  aUSA :bMicrosoft corporation ,c1991.  axiii,668p. ;bPBc21 cm.  aLearning about disks files and directories  aUsing applications with MS Dos