Glossary
Iteration
- the technique of
repeating
a group
of
program
statements:
one
repetition
of
such
Q.
group.
See
Loop.
Line
- see graphics line, input line. print
line,
or
program line.
Loop
- a group
of
consecutive program lines
which
arc
repeatedly
performed,
usually
a
specified
number
of times.
Mantissa
- the
base
number
portion
of
a
number
expressed
in
scientific notalion*. In
3.264E
+4. the
mantissa
is 3.264.
Mass
storage
device
-
an
accessory
deVlce*,
such
as a
cassette
recorder
or
disk
drive, which
stores
programs
and/or
data*
for
later
use by
the
computer.
This
information
is
usually
recorded
in a format
readable
by the
computer.
not people.
Memory
-
see
RAM,
and
ROM.
and
mass
storage device.
Module
-
see
Command
Module,
Noise
- various
sounds
which can be used to
produce
interesting
sound
effects, A noise,
rather
than a tone, is
generated
by
the
CALL
SOUND
subprogram* when a negative
frequency value
is
specified
(~1
through - 8).
Null
string
- a string* which contains no
characters
and
has
zero length.
Number
Mode
- the mode
assumed
by
the
computer
when
it is automatically
generating
program line* numbers for
entering
or
changing
statements.
Operator
- a symbol used in calculations
(numeric
operators)
or
in
relationship
comparisons (relational operators).
The
numeric
operators
are
+.
- ,*,1. 1\.
The
relational
operators
arc
:>,
<:,
-,
:>
-,
<:
-.
<:
.>
.
Overflow
- the condition which
occurs
when a
rounded
value
greater
than
9.9999999999999£127
or
less
than
-9,9999999999999E127
is
entered
or
computed. When this happens. the value is
replaced by the
computer's
limit, a
warning
is
displayed.
and
the
program*
continues,
User's Reference. Guide
Output
- (noun) information supplied by the
computer:
(verb)
the
process
of
transferring
information from the computer's memory onto a
device,
such
as a screen, line printer,
or
mass
storage
de~'ice*,
Parameter
- any of a
set
of
values
that
determine
or
affect the
output
of a statement*
or
function*,
Print
line
- a 28-position line used by the
PRINT
and
DISPLAY
statements.
Program
- a set of
statements
which tell the
computer
how to perform a complete
task
Program
line
- a line containing a single
statement*.
The
maximum length of a program
line
is
112
characiers*,
Prompt
- a symbol
(»
which
marks
the
beginning of each
commaIld* or
program
line*
you enter: a symbol or
phrase
that requests
input from
the
user,
Pseudo-randoID
nUIDber
- a
number
produced
by
a definite
set
of calculations (algorithm) but
which is sufficiently
random
to be considered
as
such
for
some
particular
purpose.
A
true
random
number
is
obtained entirely
by
chance.
Radix-tOO - a
number
system based on 100.
See
"Accuracy Information'" for informatIon on
number
representation.
RAM
-
random
access
memory;
the
main
memory
where
program
statements
and
data*
are
temporarily stored
during
program
execution*.
New
programs
and
data
can
be
read
in. accessed. and changed in RAM.
Data
stored
in RAM is
erased
whenever
the power
is
turned
off
or
BASIC
is
exited.
Record
- (noun) a collection of related
data
elements,
such
as
an
individual's payroll
information or a
student's
test
scores. A group of
similar records, such
as
a company's payroll
records,
is
called a file*.
*See definition
in
Glossary.
IV·3
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