Introduction to Computing CS101 Assignment No. 02 Semester Fall 11 November 2011

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Operating System a. User (Single or Multiple) b. Task (Single or Multi) c. Processor (Uni/Multi) d. Security DOS Single user Single task Uni Poor Windows XP Single user Multi task Multi Poor Macintosh Single user Multi task Multi Good Unix Multi user Multi task Multi Excellent Windows Server Single user Multi task Multi Poor Linux Multi user Multi task Multi Good Windows 7 Single user Multi task Multi Poor