Atari 400 User Manual page 134

Pressing the OPTION, SELECT, and START keys
will not make any characters appear on the
screen or make the cursor move or change any-
thing else. These keys are not really a part of the
keyboard, but they are often used in game pro-
grams. For example, OPTION may be used to
choose a difficulty level, SElECT to determine
the number of players, and STAin to get the
game going. The use of these keys will be differ-
ent for each program, so read
the
instructions
that come with your program to find out what
these keys do, if anything.
And then there's the SYSTEM RESET key. Sounds
powerful, doesn't it? That's because it is. When
you press SYSTEM RESET, it turns the machine
off and back on again. If you are working with
some kinds of software; the program will be
interrupted and you will have to begin again.
Use this key with care. Follow any specific in-
structions that come with your software.
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