3820 HD (250-3572) Features Faxback Doc. # 1782 * IBM PC software compatibility. * Full portability. * A 2 1/2-inch 60MB hard disk drive with MS-DOS 5.0 and Windows 3.0 installed. * A 3 1/2-inch, 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 5.0 operating system. * Serial, parallel, and other ports that let you use options such as a printer, external floppy disk drive, mouse, fax, modem, external VGA monitor, and external keyboard. * Resume function. * Rechargeable battery. * 2MB RAM memory (expandable to 8MB).