IBM PS/2 (Model 56 SX/56 LS) - Technical specifications |
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IBM Personal System/2 Model 56 SX/LS ![]() General information Machine type: 8556 Announce date: October, 1991 Excerpt from the original announcement letter; "The IBM Personal System/2(R) Models 56 SX and 56 LS are three-slot, two-bay Micro Channel (R systems designed to provide a small footprint, low price general business and Local Area Network (LAN) workstation solution. The PS/2 Models 56 SX and 56 LS are positioned between the Model 55 SX/LS and Model 57 SX of the low end Micro Channel (R) systems. The PS/2 Model 56 LS system units (24X) are shipped with all of the standard features of the Model 56 SX with the following exception: no DASD devices are installed in this medialess system, but a 16/4MBbps Token Ring network card with RIPL (24X) occupies one of three slots. The PS/2 Model 56 LS is fully upgradable to the Model 56 SX configurations. " System Characteristics Microprocessor: Intel 80386sx (32 bit) Clock speed: 20 Mhz Coprocessor: socket for optional 80387 Type of BUS: 16-bit Micro Channel Total number of expansion slots: 3 (desktop case) Ports: PS/2 keyboard, PS/2 mouse, serial, parallel, VGA, Memory Min/Max on system board: 4/16MB Type of memory: RAM: DRAM (PS/2 72-pin SIMM) 70ns parity checked (3 sockets) ROM: 128kb Cache: 0kb L1, 0kb L2 Physical description Power supply: 118w, 110-220VAC auto sense Weight: 10.9 kg (24.0 lbs) Dimensions (HxWxD): (115 x 360 x 395mm) Mass storage Drive bays: 2 ( 5.25" (2 accessible)) Floppy Disk Size: 3.5 inch slim-height Capacity: 2.88MB media sense Hard disk Size: 3.5 inch half-height Capacity: 0MB (24x), 40MB (043), 80MB (045), 160MB (049), Access time: 8.3ms Interface: SCSI (integrated SCSI controller) Display Size: Display type: Optional Analog CRT Graphics modes supported: Integrated VGA Display adapter 320x200, 256 colours 640x480, 16 colours Keyboard Type: 101 key enhanced, 122 key host connect Software Operating system: IBM PC DOS Versions 5.0 or higher Configurations Various memory, diskette drive, hard drive, monitor, and keyboard configurations including; 8556-043 - System Unit 386sx20, 4MB, 40MB, 2.88, 101 keyboard 8556-045 - System Unit 386sx20, 4MB, 80MB, 2.88, 101 keyboard 8556-049 - System Unit 386sx20, 4MB, 160MB, 2.88, 101 keyboard 8556-24X - System Unit 386sx20, 4MB, Token Ring 16/4, 101 keyboard (medialess workstation) Options
Note: Options are no longer available from IBM. |