These are program function keys. They are used
to
make the
system perform the commands listed below:
Key Description
FI
"LIST"
displays
the
lines
of
your program
on
the
screen.
F2
"RUN"
causes
your
program
to
begin execution
from the beginning
of
the
program.
!
F3
"LOAD"
reads
your
program from auxiliary storage
e
(e.g., cassette) and stores
it
in main memory.
~
F4
"SAVE"
stores
your
program on auxiliary storage
(e.g., cassette).
F5
"CONT"
restarts
your
program after you have
interrupted it
by
a STOP
or
CTRL BREAK.
F6
"LPTI:"
refers
to
line printer and transfers data
from screen
to
printer.
F7
"TRON"
means trace on and causes
the
line numbers
of
program lines
to
be displayed as the lines are
executed.
F8
"TROFF"
means trace
off
and cancels command F7.
F9
"KEY"
is
used
to
change the function
of
other
function keys.
FlO
"SCREEN" returns program
to
character
mode
from graphics
mode
and turns
off
color.
Keyboard 3-3
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