Texas Instruments TI-99/4A - Page 72

At the bottom of the right side of the keyboard
is a key marked FCTN (with a gray dot on the
front). This is your FUNCTION key. The FUNC
TION key has a special purpose: it makes other
keys on the keyboard perform more than one
job. Using the FUNCTION key issimilar to using
the SHIFTkey; you hold it down while you press
another key By doing this, what happens on the
screen is the result of the function of the key you
typed with the FUNCTION key The special
functions of the letter keys are indicated on the
fronts of the keys.
Let's try this to see how it works. First, hold the
FUNCTION key and press the I key. What char
acter appeared?
SCREEN 1
A question mark just appeared on the screen.
Examine the front of the I key on the keyboard,
and you will see the question mark symbol.
Now while you hold the FUNCTION key press
the Rkey and then the T key The left and right
brackets appear.
SCREEN 2
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