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Introduction
Your HP 82713A Plug-In Module
to
help
you
prepare
your
plug-in modules in support of
Simulator (PMS) was designed by Hewlett-Packard
program materials for incorporation into custom
your HP-75 portable computer.
The ROM (read-only memory) of a plug-in module is
simulated
by
bytes of RAM (random-access memory).
Data can easily be written
from the RAM, just as it is in the HP-75 itself.
Circuitry
is
retains the memory after power has been removed from the unit.
8K
or
16K
into or read
used
which
The PMS incorporates the flexibility of RAM and the memory characteristics of
ROM in a single, easy-to-use package.
With the simulator you can accomplish the
following:
o
Since computer memory
is
not
required,
you
can
conduct
realistic
performance tests of your programs.
o
You can field test your programs.
o
You can verify absolutely the function and fit of your software
within
the plug-in module.
o
You can compare the performance of a program in the plug-in
module
to
the performance of the same program in the computer.
o
You can temporarily store files and programs.
If
you
are
concerned
updating,
the PMS will
you are an accountant;
software.
Just
read
plug-in module.
Doing
permanent module.
with
"semifixed"
programs
that
require
periodic
be particularly useful to you.
Suppose, for example,
each year you need to use the latest tax table in your
the current data into your simulator, and use it as a
this saves you the cost and time required to obtain
a
You need to have an HP-75 portable
computer
and
to
understand
the
HP-75
keyboard
and
programming
techniques in order to operate the PMS.
5
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