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92
•Mt!tt•
The RUN mode is used to execute
the programs
you
create.
The PROgram
mode is
used
to
enter
and edit
your
programs.
Some verbs may also be
used
as
commands.
(See Chapter 8 for a complete
listing
of
BASIC commands and
their
use
on
the
computer.)
RUN
NEW
RADIAN
Commands
are instructions
to
the
computer
which are entered outside
of a
program.
Commands instruct the computer
to perform some action
with your program
or
to set
modes which affect how
your
programs
are
executed.
Unlike verbs, commands have immediate effects-as
soon
as
you
complete
entering
the
command (by
pressing the
I
ENTER
I
key),
the
command
will be executed.
Commands are
not preceded
by
a
line
number:
BASIC Commands
Operands
provide
information
to the computer telling it what data
the
verb will act
upon.
Some verbs require
operands;
with
other verbs
they
are
optional.
Certain
verbs
do
not allow
operands.
(See
Chapter 8
for
a
complete
listing
of
BASIC
verbs
and their use
on
the computer.)
10: PRINT "HELLO"
20:
END
30:
Some statements require or allow an
operand:
10:
PRINT
"HELLO"
20:
END
30:
All
BASIC statements must contain
verbs.
Verbs tell the
computer
what action to
perform. A verb
is always contained within a program, and as
such
is not acted
upon
immediately.
BASIC Verbs
Programming the
Computer·
- Quick Links:
- Basic Commands
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