Text ( visual ) : unmediated How computers work : including interactive CD-ROM / Ron White ; illustrated by Timothy Edward Downs. -- Emeryville, Calif. : Ziff-Davis Press , c1994. -- xii, 202 p. : col. ill. ; 28 cm. + 1 computer laser optical disc (4 3/4 in.). -- (How it works series). -- At head of title: PC Computing ; System requirements for computer disc: IBM-compatible PC with 386DX-33 microprocessor or better (486DX-33 or faster recommended); 4MB RAM or greater; MS-DOS 5.0 or higher; Microsoft Windows 3.1 or higher; MSCDEX 2.2.1 or higher; SVGA adapter (supporting 640 x 480 resolution and 256 colors) with color monitor; hard disk with 5MB free space; double-speed CD-ROM drive; Microsoft-compatible mouse ; Includes index. -- ISBN 1562762508 ; (BA24703370) ; https://ci.nii.ac.jp/ncid/BA24703370 Author Heading(s): White, Ron ; Downs, Timothy Edward. -- Classification(s): LCC : QA76.5 ; DC20 : 621.39/16. -- Subject Heading(s): LCSH : Microcomputers