2500 SX/20 (250-4077) Optional Equipment Faxback Doc. # 1249 * Additional Storage Devices--Give you a variety of storage options, including: high-capacity and standard-capacity diskette drives (3 1/2" or 5 1/4"), internal hard disk drives (3 1/2" or 5 1/4"), and tape and/or disk cartridge systems. * Memory Upgrade Kit--Contains 256KB or 1MB SIMMs to increase system memory on the main logic board or on a 16-bit memory expansion adapter. * Video Memory Upgrade Kit--Increase the video memory on the main logic board from 256KB to 512KB. This additional video memory lets you use more Super VGA modes. * 16 MHz Intel 80387SX Math Coprocessor--Increases the numerical processing capability of your computer. A math coprocessor can process numeric data more quickly than the CPU. * Modem--Transmits and receives data through an ordinary telephone line. * Digital Scanner--Converts printed text and graphics to digital form. * Fax Adapter--Transmits and receives scanned graphic images through telephone lines. * CD-ROM Drive--Accesses the enormous storage capabilities of read-only disks. * Multiple-Frequency Monitor--Lets you use more Super VGA modes. Connect a multiple-frequency monitor or 8514/A-compatible, multiple-frequency monitor. To use some Super VGA graphics modes, you must also install a video memory upgrade kit. * PS/2-Style Mouse--Enables you to choose program and menu options quickly. Move the mouse to position the cursor and highlight your selection. Then, click the left mouse button. (jej-05/11/94)