Atari 130XE

If you don't want to use ATARI BASIC (the programming language that
is
built into your ATARI 130XE), you can temporarily disable the
language in several ways: plug in a software cartridge; hold down the
IOptionl key when you turn on the computer; type BYE to exit to the
Self Test; or, if the computer is connected to a disk drive, type DOS to
activate the Disk Operating System. (For more
details, see Exploring
ATARI BASIC.)
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