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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import)
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title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Hewlett Packard HP-65
Computers
Professional Computer
U.S.A.
1974
HP CPU
name image company company_name specs tabs forum_thread links related oc_id source
HP-65 /media/museum/photos/hp_65_system_s1.jpg /companies/hewlett-packard Hewlett Packard
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NAME HP-65
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MANUFACTURER Hewlett Packard
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TYPE Professional Computer
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ORIGIN U.S.A.
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YEAR 1974
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END OF PRODUCTION 1977
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BUILT IN LANGUAGE Reverse Polish Notation (RPN)
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KEYBOARD 35 multi-function keys
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CPU HP CPU (several chips)
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SPEED Unknown
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RAM 100 steps, 9 registers
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ROM Unknown
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TEXT MODES 1 line, 10+2 chars LED display
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SIZE / WEIGHT 8.15 (W) x 15.25 (L) x 3.55 (H) cm
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BUILT IN MEDIA Built-in magnetic card reader/writer
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POWER SUPPLY Battery pack containing 3x AA rechargeable cells
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PRICE $795
links
1093
title url text
HP Museum http://www.hpmuseum.org/hp65.htm Detailed information about the HP-65
/museum/hewlett-packard-hp-200lx
1123
url date
https://web.archive.org/web/20230604005733/http://www.old-computers.com/museum/computer.asp?c=1123 2023-06-04

The HP-65 is arguably the most elegant and classic pocket calculator ever built.

Boasting many firsts, including being the first fully programmable hand-held calculator with built-in magnetic card reader, it was used for course corrections on Apollo, and was introduced as "The Personal Computer" when keypunch machines were still the most common input device for mainframes.

While pricey, nearly $800 back in 1974, its quality and innovations garnered many enthusiasts, spawning clubs like the HP-65 Users Club and triggering medical recoveries (but that's another story!).

Thanks to Mike Dutch - Picture from Teclas.org

Gary Clouse reports:
The early HP calculators were legendary for their durability. there were stories of them surviving 40 ft drops onto concrete, exposure to the weather for several months, and being run over by heavy eauipment on construction sites. The circuit board and battery contacts were gold-plated to prevent corrosion. There was a joke among engineering students that if there was a nuclear war, the survivors would be HP calculators and cockroaches.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.