IBM 5150

Below are examples of "CONTROL" and "ALTERNATE"
functions:
"CTRL +SCROLL LOCK/BREAK" =BREAK
This stops
your program while it's running and identifies
the line
where it stops.
"CTRL + NUM LOCK" =PAUSE
This stops your program from running. Press any key
to continue.
;-"\
"CTRL +-.1" =TAB
Moves cursor to
next word on that line.
"CTRL +14-" =REVERSE TAB
Moves cursor to previous word
on that line.
"CTRL + HOME" =CLEAR SCREEN
Removes all information
on screen and moves cursor
to upper left comer.
"CTRL + ALT + DEL" =SYSTEM RESET
Holding
cOn trol and Alternate keys then pressing the
delete keys reloads
your diskette.
Keyboard 3-7