IBM PS/1 User Manual

J6
J5
J4
J3 J2
J1
BH1
SP103
J8
J11
U7
J7J9
J17 J16
J15
U19
U31
U30
U29
U28
U37
U43
U38
U44
DX
U45
J23J24J25
J26J27
J22 J21 J20
J19
J14
1
25
2
26
2
33
39
120
60
2
2
2
72
72
72
72
2
1
1
1
71
71
71
71
1
1
61
2
1
34
40
1
1
3
1 2 3
1 2 3
1 2 3 44 3 2 1
11
14
15
25
106
1
1
1166
12
1
5
555
993311226 6 4 4
5
13
1 1
3 3
Figure 5-8. 486DX 25MHz/486DX2 50MHz or 486DX 33MHz/486DX2
66MHz (72-Pin Memory SIMM) System Board
5-16

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