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17
| LIST
for Quick Understanding
While continuing conversation with the computer by repeated trials and errors, the
first
keyed-in program may
sometimes be gone from the
CRT screen. Even so, don't worry.
The
computer
never
forgets any
program once
keyed-
in,
When you want
to
see
the
previous
keyed-in
program,
key-in the
following:
LIST CR
This
is
followed
by the
display all the stored
programs on
the
CRT
screen.
If
the program extends
over
tens
and
hundreds of lines beyond dispaly
at
a
time, part
of
the stored programs can be displayed.
LIST
-
30
or
Displays a
program up
to line number
30.
LIST 30
- CR
Displays a program after line number 30.
LIST
30-50[CR
Displays a
program between
line numbers
30
and
50.
LIST 30 CR
Displays
a program
of line number 30.
The result of
NEW
....
To store a new program, clear the
previous
program
using
the
NEW command.
Otherwise, two
programs may overlap
to
cause
confusion.
NEW CR
This will clear the previous
program
completely. To en¬
sure
this, key-in the
LIST
command to check that the program
is
cleared.
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