IBM 5150 Manual To Operations page 89

---
To Enter a Command
l\.
J
To Stop a Command
[[8]
+
Scroll
-.;;;;
Lock
Break
......
~
Use the Enter key when you have
finished typing a whole command.
After you press the Enter key, the
command starts (sometimes, you will
see the word "executed" instead of
"started").
Press and hold the Ctrl (Control) key
and then press the Break key. Then
release both keys to stop a command
from finishing its job normally.
(This is sometimes called "terminating"
a program.)
DOS shows you a prompt; then you
can type your next command.
DOS 3-15