00542cam a2200193 a 4500 0826464165 QA 76.76 RIT Ritchie, Colin. Operating systems incorporating UNIX and Windows / 4th ed. London : Continuum, c2003. xiv, 279 pages : Illustrations ; Includes index. Operating systems (computers) UNIX (computer file) Microsoft Windows (computer file) Windows. lcc BK 0 0 lcc 0 GIMPA GIMPA REF 2005-05-30 Purchase 0 QA 76.76 RIT 42667 2023-10-04 2023-10-04 BK 3460 3460