(Man, is it weird to be using a 2400 modem to reply to this. "Why are you using a 2400 modem?" you might ask. Good question. Answer: bad weather (rain and lots of it) and crummy phone lines. I felt it was easier to hook up the 2400 than to figure out how to reset my 28.8 not to attempt to connect at 28.8 ... man have I gotten spoiled 8-) It was thus said that the Great Uncle Roger once stated: Hmm, seeing how I have one of these, plus the programmer's manual and some of the add ons. A nice machine and one of the best keyboards ever (IMNSHO) on a portable/laptop. {mfr} Data General {location} Mass. if I remember correctly. Or at least their main HQ {model} 2217A {processor} 4Mhz 80C88 {opsys} MS-DOS 2.1, CP/M-86 (version unknown) {bits-int} 16b {bits-data} 8b {ram-min} 128Kb (48Kb reserved for display) {ram-max} 512Kb (internal, 48Kb for display, 464Kb for program/data, external, an additional 364Kb is possible) {rom} 32Kb {input} keyboard, serial port, floppy (2 3.5" internal, external drives possible with expansion port), expansion port (opt) 300b internal modem (opt) {display} 640x256 LCD display, non-back lit (compatible with CGA) {stor-cas} none (or N/A) {stor-fdd} up to 2 internal 3.5", external with expansion port (5.25" available from DG, not sure about 3.5" external) {stor-hdd} none (at least to my knowledge) {expansion} external bus adaptor (external floppy adaptor uses this) {intro} 1984 {discon} unknown {cost} unknown (but I can get the info - it made the cover of Byte in 1984 when introduced) {size} 11.25" x 13.5" x 3" (when folded) {weight} unknown (but it's hefty) {power-volt} 30W +5.8v DC {power-conn} proprietary (unknown) {power-polar} unknown {notes} Two serial ports are built in, the primary is RS-232C/RS-422 and contains modem control lines. The secondary is only RS-232C with no modem control lines (primary use of the secondary port is for serial printers). Both are driven by 82C51 USART controllers and are NOT PC compatible (bummer for an MS-DOS machine). RAM is 64K-bit CMOS static RAM (speed unspecified in the docs I have) and is not preserved when shut down. When all internal memory options have been installed, user has 464Kb to work with. An additional 368Kb (for a total of 832Kb, although MS-DOS would only use 704Kb) can be added via the external IO bus, although I know of no product that does this. The LCD display is both MDA (mono-chrome) and CGA compatible and 48Kb of RAM is set aside for use by the LCD display (including 12Kb for a RAM based font). -spc (What I want to know is if battery packs are still available. I'd like to be able to use this without having to plug it in)