3900/3950HD/3950C (250-3580/86/87) Specifications Faxback Doc. # 2700 Dimensions: 3900: 1 5/8 X 8 1/2 X 11 in. 3950HD: 1.65 X 8.5 X 11 in. 3950C-HD: 1.73 X 8.5 X 11 in. 3900/3950C-HD WEIGHT: 5 lbs. 8 oz, w/batteries 3950HD WEIGHT: 5 lbs. 4 oz, w/batteries System Specifications: Processor: 3900: CX486SLC CPU SPEED: 25 MHz 3950C/HD: CX486SLC2 CPU SPEED: 50 MHz WAIT STATES: 0 Math Coprocessor: 387SX Memory: 3900 STD. Memory: 2 MB MAX Memory: 8 MB 3950C/HD STD. Memory: 4 MB MAX Memory: 8 MB Note: 3950C/HD 6MB upgrade SIMM is 250-3585. Video Memory: 3900: 256K 3950C/HD: 512K FCC CLASS: Class B MTBF: N/A Operating System: 3900: DOS 6.0 3950C/HD: DOS 6.2 3900 IDE Hard Drive: 3950C/HD IDE Hard Drive: IDE Hard Drive: 120 MB IDE Hard Drive: 200 MB Cylinders: 980 Cylinders: 985 Heads: 15 Heads: 13 Precomp: 0 Precomp: 0 Landing Zone: 980 Landing Zone: 985 Sectors: 17 Sectors: 32 Note: Drives Manufactured by: Seagate Video: 3900/3950HD Video Display: 10" CCFT backlit LCD, VGA compatible with EGA/CGA/MDA emulation. 640 x 480 pixels resolution with 64 grey shades. 3950C Video Display: 8.2" CCFT backlit Color LCD, VGA compatible with EGA/CGA/MDA emulation. 640 x 480 pixels reslution. Power: Output: 12 volts, 1.5 amps Input: 100-250 volts, 47-63Hz, 0.7 amps. STD Ports: 1 PC/AT compatible parallel port, 1 PC/AT compatible RS232C serial port DB15 external VGA monitor connector, PS/2 Style external keyboard connector. Keyboard: 82-key QWERTY Enhanced keyboard with built-in Trackball Floppy: 3.5" 1.44 MB disk drive (smc-02/18/94)