Texas Instruments TI-99/4A - Page 85

TION key and the 1/!key,you can delete (re
move) characters
that you don't want in a line.
The DELETE key operates much like an eraser
on a sheet of paper. The DELETE key has some
advantages over a normal eraser, however. It's
much neater—in addition to not leavinga mess
after use, the DELETE key won't leave blank
spaces where you've erased mistakes.
Let's try using the DELETE key. Type
THIS IS MY OLD COMPUTER.
Your sentence appears.
SCREEN 2
Now use the leftarrow keyto move the cursor
to cover the letter O in the word OLD.
SCREEN 3
Now, hold the FUNCTION keydown, and press
the I/I key four times. What does our sentence
say now?
SCREEN 4
Byusing the DELETE key, you've deleted the
word OLD.Each timeyou press DELETE, the
character (orspace)on whichthe cursorrestsis
erased, and allof the letters to the right of the
cursor move to the left by one space. This auto
maticallytakes care of the space that was occu
pied by the deleted character.
Before starting the next exercise, press ENTER,
type the words CALL CLEAR, and press ENTER
again to clear the screen.
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