AM-6000 Computer Owner's Manual, Rev. 00
Appendix B - The Control
Characters
Your terminal keyboard allows you to type control characters which perform special functions. A control
character is the signal transmitted to the computer when you hold down the
CTRL
key and press another
key at the same time. The following list contains the most important control characters. The AMOS
User's Guide contains a complete list of control characters and their functions.
Control-C
Control-C is the system interrupt command. You use it to interrupt whatever
program is in progress and return to AMOS command level. After pressing
CTRL
/
C
to interrupt a program, you cannot resume execution of that program;
you must start it over from the beginning.
Some programs, such as AlphaVUE, do not recognize a Control-C as an exit
command; instead you must use the exit command for that program if you want
to return to AMOS command level.
Other programs do recognize a Control-C; however, if an exit command exists
for a program, it is usually better to use that command than to press
CTRL
/
C
.
Many programs perform various closing functions when you use their normal
exit commands and would not have a chance to perform those procedures for an
orderly exit if you bypass them by using a Control-C.
Control-U
At AMOS command level, you may move to the leftmost character of the
command line you are typing by pressing
CTRL
/
U
.
Control-S
A program or command often displays more data on your terminal than fits on
one screen. To stop the screen display, press
CTRL
/
S
.
You can now read the data on the screen at your leisure. Not only does the
display freeze, but AMOS actually stops sending data to your terminal until you
press
CTRL
/
Q
(see below); at that point, AMOS resumes sending information
where it left off.
While a Control-S is in effect, AMOS stores, but does not act upon, anything
you type except for
CTRL
/
Q
. There is, however, a limit to how much can be
stored. The exact number of characters depends upon your initial system setup.
