IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)

NOTE 1 Asterisk (*) can easily be keyed using two methods:
1) hit the IPRTSC Ikey or 2) in shift mode hit the
[iJ key. *
NOTE 2 Period (.) can easily be keyed using two methods:
1) hit thelJ key or 2) in shift or NUM LOCK
mode hit the [!!;il key.
NOTE 3 Numeric characters (0-9) can easily be keyed
using two methods: 1) hit the numeric keys on the
top row of the typewriter portion of the keyboard
or 2) in shift or NUM LOCK mode hit the numeric
keys in the lO-key pad portion of the keyboard.
NOTE 4 Upper case alphabetic characters (A-Z) can easily
be keyed in two modes: 1) in shift mode hit the
appropriate alphabetic key or 2) in CAPS LOCK
mode hit the appropriate alphabetic key.
NOTE 5 Lower case alphabetic characters (a-z) can easily
be keyed in two modes: 1) in "normal" mode hit
the appropriate alphabetic key or 2) in CAPS LOCK
combined with shift mode hit the appropriate alphabetic
key.
NOTE 6 The 3 digits after the ALT key must be typed from
the numeric key pad (keys 71-73. 75-77. 79-82).
Character codes 000 through 255 can be entered in
this fashion.
C-ll