Texas Instruments TI-99/4A - Page 147

Now, type the word LIST.
SCREEN 3
Then press the ENTERkey. The LIST command
tells the computer to display on the screen all of
the commands in the program. Youwill see the
program displayed on the screen, just as you en
tered it.
SCREEN 4
Take a close look at this program. The numbers
from 10 through 100 are the line numbers. Each
line number isfollowed by a word or group of
words that form a BASIC command. To run the
program the computer begins with the smallest
line number and performs the job that it is told
to do by that particular line. Then it proceeds to
the next line and follows the instructions given it
by that line. The computer continues to perform
the steps outlined in each line of the program.
Once the computer runs short of work to do (in
this case, after line 100), it assumes that it has
finished running the program. That's when it
displays the word **DONE"
:**
Do not clear your screen and do not turn off
your computer at this time. Go on to the next
exercise.
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