IBM 5150 Technical Reference

Key
Number
Base Case
Upper Case
Ctrl
Alt
65
Nul (Note 1)
Nul (Note 1)
Nul (Note 1)
Nul (Note 1)
66
Nul (Note 1) Nul (Note 1)
Nul (Note 1)
Nul (Note
1)
67
Nul (Note 1) Nul (Note 1)
Nul (Note 1)
Nul (Npte 1)
68
Nul (Note 1)
Nul (Note
1) Nul (Note 1)
Nul (Note 1)
69 Num Lock
-1
- 1
Pause (Note 2)
-1
70
-1
- 1
Break (Note 2)
- 1
Scroll Lock
Notes:
1. Refer to "Extended Codes" in this section.
2. Refer
to "Special Handling" in this section.
Character Codes (Part 3 of 3)
Keys 71 through 83 have meaning orily in base case, in Num Lock
(or shifted) states, or in Ctrl state. Note that the Shift key
temporarily reverses the current Num Lock state.
Key Num
Number Lock
Base Case
Alt Ctrl
71 7 Home (Note 1 ) -1 Clear Screen
72
8
t
(Note 1)
- 1
-1
73
9
Page Up (Note
1)
- 1
Top
of Text and Home
74 - ------------------------ -1 -1
75 4 -(Note 1)
- 1
Reverse Word (Note 1 )
76
5
-1
- 1
-1
77 6 -(Note 1)
- 1
Advance Word (Note 1)
78
+
+
- 1
- 1
79 1 End (Note 1) - 1 Erase to EOL (Note 1)
,
80
2
(Note 1)
- 1 - 1
81
3
Page
Down (Note 1 ) -1 Erase to EOS (Note 1)
82 0
Ins
- 1
-1
83 Del (Notes 1,2)
Note 2 Note 2
Notes:
1. Refer to "Extended Codes" in this section.
2. Refer
to "Special Handling" in this section.
System BIOS 5-17

IBM 5150 Specifications

General

Processor	Intel 8088
Clock Speed	4.77 MHz
RAM	16 KB - 256 KB
Manufacturer	IBM
Model	5150
Release Year	1981
Storage	5.25-inch floppy drives
Graphics	MDA or CGA
Operating System	IBM PC DOS
Ports	Cassette, keyboard
Expansion Slots	5