IBM 5150 Manual To Operations page 52

F2
'~'
,3
,.
f. f.
i-< ­
~~ ~
I~, t3,
These keys will perform the following functions:
Key Description
CAPS This is a toggle key: pressing the key will cause
LOCK letters to type in upper case (capitals). Pressing
the key again will return lower case.
PRT
"PRINT SCREEN" will print an
*.
When pressed
SC with the "SHIFT" key it will print all data on screen.
SCR "SCROLL LOCK" is an inactive key.
LOCK
Keyboard 3-6