Original PC Hardware Reference
Original PC Hardware Reference
Original PC Hardware Reference
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Disk Storage<br />
An Introduction to the XT Model 286 CD: 53<br />
Internal disk and tape drive bays 1 full-height and 2 half-height<br />
Number of 3 1/2-inch and 5 1/4-inch bays 0/3<br />
Standard floppy drives<br />
Optional floppy drives:<br />
1×1.2MB<br />
5 1/4-inch 360KB Optional<br />
5 1/4-inch 1.2MB Standard<br />
3 1/2-inch 720KB Optional<br />
3 1/2-inch 1.44MB Optional<br />
3 1/2-inch 2.88MB No<br />
Hard disk controller included ST-506/412 (Western Digital WD1003-WA2)<br />
ST-506/412 hard disks available 20MB<br />
Drive form factor 5 1/4-inch<br />
Drive interface ST-506/412<br />
Drive capacity 20MB<br />
Average access rate (ms) 65<br />
Encoding scheme MFM<br />
BIOS drive type number 2<br />
Cylinders 615<br />
Heads 4<br />
Sectors per track 17<br />
Rotational speed (RPMs) 3,600<br />
Interleave factor 3:1<br />
Data transfer rate (kilobytes/second) 170<br />
Automatic head parking No<br />
Expansion Slots<br />
Total adapter slots 8<br />
Number of long and short slots 6/2<br />
Number of 8-/16-/32-bit slots 3/5/0<br />
Available slots (with video) 5<br />
Keyboard Specifications<br />
101-key Enhanced keyboard Yes<br />
Fast keyboard speed setting Yes<br />
Keyboard cable length 6 feet<br />
Physical Specifications<br />
Footprint type<br />
Dimensions:<br />
Desktop<br />
Height 5.5 inches<br />
Width 19.5 inches<br />
Depth 16.0 inches<br />
Weight 28 pounds<br />
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