The Museum of HP Calculators


This Hewlett-Packard advertisement, originally published in Scientific American, is used by permission. If errors crept in during the scanning process, please contact Dave Hicks

The HP-65 hand-held fully programmable: the $795* machine with the priceless program library.

Without programs (software), a fully programmable calculator can be a time-consuming novelty. On the other hand, with its extensive software library, the HP-65 is immediately available to solve an astonishing range of computational problems.

Like a computer, the HP-65 memorizes programs of any size that are fed into it on tiny magnetic cards, 100 program steps to a card. With just a few keystrokes by the user, it executes the program and gives the answer to complex problems with an accuracy of up to 10 digits.

During its two years of existence, the HP-65 has been accumulating programs: both those developed by Hewlett-Packard, and those submitted by thousands of enthusiastic users.

As a consequence HP-65 owners in the U.S.A. have immediate access to more than 400 prerecorded programs, each of which quickly transforms the HP-65 into a dedicated computer to solve a specific problem. These problems are grouped in 14 Application Pacs, with up to 40 programs per pac, for such disciplines as statistics, math, medicine, chemical engineering, electrical engineering, and finance. They are priced at $45* per pac.

In addition, more than 4000 contributed programs are available through the U.S. HP-65 Users' Library. These are not prerecorded, but are fully documented and described step by step, so that it requires only a few minutes to key one into your HP-65 and permanently record it on magnetic cards. All programs are listed and described in the Catalog of Contributed Programs, free to HP-65 owners and to readers who request it (see coupon at right). These library programs with full documentation are available at a nominal charge.

An offer you shouldn't overlook.**

Now, to start the HP-65's third year, $795 * will buy four application pacs of your choice, five of the most popular programs from the Users' Library, and an HP-65 on which to run them.

As a hardware/software combination, the HP-65 remains the most powerful hand-held computing system available, with thousands of programs carefully crafted to save you time, sweat, and tears. You can get it at quality department stores and campus bookstores, or from HP. Call 800-538-7922 in the U.S.A (in California, 800-662-9862) for the name of the HP retailer nearest you.

For more information on these products, write to us, Hewlett-Packard, 1502 Page Mill Road, Palo Alto, California 94304. HP-65 software includes: 4000 programs listed in the Users' Library catalog (1), blank magnetic programming cards (2), 14 specialized Application Pacs including magnetic cards (3) and accompanying manuals (4).

*Domestic USA prices only.
**Offer is good only in the continental USA., Alaska and Hawaii, and is void where prohibited by law. Offer expires April 30, 1976.

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