IBM PS/1 User Manual

Environment:
Temperature, System Unit and Display
– Power on: 10° to 32°C (60° to 95°F)
– Power off: 10° to 43°C (50° to 110°F).
Humidity, System Unit and Display
– Power on: 8% to 80%
– Power off: 8% to 80%.
Maximum altitude: 2134 m (7000 ft).
Heat output (maximum):
Machine Type 2133 System Unit
– 184 Btu/Hr.
Machine Type 2155 System Unit
– 409 Btu/Hr.
Machine Type 2168 System Unit
– 409 Btu/Hr.
Electrical:
Input voltage (sinewave input is required)
Low Range System Unit Display
Minimum: 100 V ac 108 V ac
Maximum: 125 V ac 132 V ac
High Range System Unit Display
Minimum: 180 V ac 198 V ac
Maximum: 265 V ac 264 V ac
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IBM PS/1 Specifications

General

Processor	Intel 80286 or 80386
Processor Speed	10 MHz (80286)
RAM	1 MB (expandable to 2 MB or more)
Storage	40 MB hard drive
Floppy Drive	3.5" 1.44 MB
Graphics	VGA
Ports	Serial, Parallel, Mouse