|
Appendix F: HP-41C Extensions258
|
|
HP 82104A Card Reader
|
|
The HP-41C is so easy to program—and the resulting programs so powerful
and versatile—that you’ll undoubtedly be inspired to write
specialized programs for later use. When your programming output exceeds the
sizeable capacity of the continuous memory in the HP-41C—or the even
larger capacity with optional memory modules—you can permanently
store your programs on magnetic cards using the
HP 82104A Card Reader.
|
|
The HP-41C allows you to specify a single program you wish to record from its
continuous memory onto a magnetic card. Each card can contain up to 32
registers of program instructions or 32 storage registers. A program or
group of registers need not be limited in length to the capacity of a single
card, through; it can be segmented among as many cards as necessary. You
don’t have to figure out whether more than one card is required for
reading and writing; the HP-41C does that for you automatically, then
tells you by displaying a message.
|
|
The HP 82104A Card Reader will even record any key reassignments that are made
to run the recorded programs. So all you do is set the HP-41C to USER mode,
read in the card or cards and begin. And if you would like to assure the
‘‘privacy’’ and ‘‘security’’ of
your recorded programs, you can instruct the card reader to record a card so
that the program on that card can only be executed and not viewed
or altered.
|
|
With an HP-41C and the HP 82104A Card Reader, you are not limited to reading
programs or data on magnetic cards that you have recorded yourself. The HP-41C
has been specifically designed to accept a program or data on a magnetic
card recorded on an HP-67 or HP-97. This will allow you to utilize the vast
number of specialized programs available from the HP-67/HP-97 User’s
Library.
|
|
HP 82143 Printer
|
|
For a permanent record of calculation results, or for assistance in checking
or editing long programs, you can connect an
HP 82143 Printer to your HP-41C.
Powered by its own set of batteries, it prints alphanumeric characters quietly
and efficiently.
|
|
The printer can also be set to provide you automatically with valuable
diagnostic information when creating or running a program. You can obtain
a printed record of the program line number and function name when creating
a program. And when executing a program or series of manual keystrokes, the
printer can provide a record of the numbers keyed in, functions performed,
and answers calculated.
|
|
Hewlett-Packard Application Modules
|
|
If you’re a specialist interested in preprogrammed solutions for problems
in a specific field, an HP application module can greatly enhance the usefulness
of your HP-41C. Available in a variety of disciplines, HP application modules
each contain a number of professionally developed programs. These modules quickly
transform your HP-41C into a special-purpose machine designed to solve complex
problems in your field at the touch of a few keys.
|
|
Up to four application modules can be plugged into the I/O ports on the
HP-41C. While a module is plugged in, the names of all programs contained in
the modules can be displayed by pressing CATALOG 2.
|