2810 HD/20 (250-3551) Features Faxback Doc. # 1802 * IBM PC software compatibility * Full portability * A 2 1/2" 20MB hard disk drive with MS-DOS and DeskMate installed * A 3 1/2" 1.44MB diskette drive * LCD display with fluorescent backlight * Full-feature, 84-key keyboard with full 101-key emulation and reversible CTRL/CAPS LOCK keys * MS-DOS version 4.01 operating system * Serial, parallel, and other ports that let you use options such as a printer, external floppy disk drive, mouse, fax, modem, VGA monitor, and external keyboard * Resume function * Rechargeable battery * 1MB RAM memory (expandable to 5MB) (jej-50/10/94)