The computer virus protection handbook / Colin Haynes. Haynes, Colin. Computer viruses. QA76.76.C68 H39 1990 005.8 20 HAC System requirements for computer disk (ViruScan and Virus simulation suite): IBM PC or clone; DOS; floppy or hard disk system. Includes index. New Delhi : BPB, c1990. c1990. 1990 Text xxi, 192 p. : eng