Diskette.
For
permanently storing
information
and software
outside the
computer. A
diskette
has
a magnetic
coating that
stores information
in
much the same way
an
audio tape stores
sound.
Diskettes that can store
information
on only
one side are
called single-sided diskettes.
Diskettes
that can store information on both
sides are double-sided. Your
computer
uses
both types.
Processor. For gathering, manipulating, and
sending information within
the computer.
The
processor
ties together all
other
parts of
hardware.
Computer Software
This picture
shows the kinds of software and
how
they relate
to
the hardware:
Languages
Application
Programs
Operating
System
»m
Application Programs.
To get
the computer
to do
something practical,
such as
compile
a
mailing list,
you need an
application program.
Tandy has
many
applications for such tasks
as
accounting, education, and word
processing.
Languages. A programming language, such
as BASIC, is one kind of application program.
It
has
a set of codes
you
can use
to
write
other application programs. Your computer lets
you use two kinds of BASIC:
•
The
BASIC provided on a diskette with your
computer.
Use
this when writing
programs for
use on
the
4D.
•Model
III
Mode BASIC,
the
BASIC
that is
built into
your
computer.
Use
this when writ-
ing programs
for use on
the Model
III, in
ad-
dition
to
the
4D.
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