Description based on: July 1982-June 1995; title from cover.
System requirements: DOS-compatible personal computer; 640K RAM, including 500K RAM free; hard disk drive with 650K available for SPIRS software and an additional 2.5MB available for temporary storage of search data; MS-DOS or PC-DOS, version 3.1 or higher; MS-DOS CD-ROM extensions (MSCDEX) version 2.0 or higher (or MSCDEX version 2.1 or higher with MS-DOS version 4.0 or higher); ISO 9660-compatible CD-ROM drive with cable and interface card; monitor, floppy disk drive. Optional: printer.