00648nam a22001697a 4500 2012021309189.0 9812359737 00.00 A-980738 DPL ENG Deitel, H. M. 41740 Operating system : Including case in Unix, OS-2, MS-Dos, Macintosh, VM, MVS, Open systems / by H. M. Dietel 2nd ed. Addison Wesley Longman xxvi, 853p. 18 cms. ddc EN 005.43 DEI 62622 62622 0 0 0 0 NFIC ZLS ZLS 2012-02-13 0.00 0 005.43 DEI A-980738 2012-02-13 00:00:00 0.00 2012-02-13 EN