-- TechRef is a handbook size reference which contains all of the best selling Pocket PCRef Plus Pocket PC DIRectory Plus a chapter on Windows 95 ... Show synopsis -- TechRef is a handbook size reference which contains all of the best selling Pocket PCRef Plus Pocket PC DIRectory Plus a chapter on Windows 95 keyboard shortcuts Plus a chapter on our favorite 250 World Wide Web sites! All in one convenient handbook. -- Configuration specs for over 3450 hard drive and 460 floppy drives, DOS command reference through Version 6.22, ASCII codes, hardware and software interrupts, I/O Maps, cable pinouts, error codes, CPU table, printer control codes, and much, much, more. -- Contains directory information on over 2,000 North American companies involved in the manufacture of PC based computers, peripherals, software, and service depots! Includes name, address, classification (hardware, software, etc.), phone numbers for main, toll free, fax, tech support, and BBS, on-line addresses for World Wide Web, Compuserve, Microsoft Network, and AOL. -- Handbook size! (5" x 7.5" x 1.2"). Durable Lexotone "RM" cover. -- A MUST for anyone who uses or works on PC computers! -- New edition each year!