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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import)
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
2026-10-13 17:26:43 +02:00

8.2 KiB

title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Panasonic HHC
Computers
Pocket
Japan
1981
6502 Low power NMOS version
name image company company_name specs tabs forum_thread photos adverts hardware oc_id source
HHC /media/museum/photos/panasonic_hhc_system_1.jpg /companies/panasonic Panasonic
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NAME HHC
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MANUFACTURER Panasonic
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TYPE Pocket
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ORIGIN Japan
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YEAR 1981
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BUILT IN LANGUAGE SNAP interpreter
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KEYBOARD 65 keys, calculator type. All the keys are redefinable.
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CPU 6502 Low power NMOS version
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SPEED 1 Mhz
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RAM 2, 4 or 8 KB. Up to 96 KB with 4, 8 or 16 KB memory modules.
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ROM 16 KB internal - 3 x optional 16 KB modules
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TEXT MODES LCD display - 1 line x 26 chars.
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GRAPHIC MODES 8 x 159 dots
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COLORS Monochrome
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SIZE / WEIGHT 227 x 95 x 30,5 mm / weight: 570 gr.
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I/O PORTS 44-pin expansion port, 3 sockets for program ROM's
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BUILT IN MEDIA Tape recorder interface built into the printer expansion
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POWER SUPPLY 5 x built-in Ni-Cad batterie 'AA' type (80 hours autonomy) or external 9 v. P.S.U.
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PERIPHERALS Printers, I/O expansion interface, RS-232 interface, IEEE 488 interface, TV display interface, acoustic modem, RAM expansions, disk drive, EPROM burner, etc.
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PRICE $500
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hardware
630
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LARGE VIEW /media/museum/photos/panasonic_hhc_system_s2.jpg
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WITH PRINTER The printer holds the In/Out tape recorder jacks on the upper left corner. /media/museum/photos/panasonic_hhc_withprinter_s1.jpg
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RIGHT SIDE Notice the expansion connector which allows to connect in chain any of the Panasonic peripherals. /media/museum/photos/panasonic_hhc_leftside_s1.jpg
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RIGHT SIDE The round connector is used for the external AC adaptor. /media/museum/photos/panasonic_hhc_rightside_s1.jpg
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BOTTOM SIDE **(1)** This switch allows the system components, including the RAM backup, to be disconnected from the internal battery pack\ **(2)** 3 x 16 KB Custom software ROM chips\ **(3)** One of the two 2 KB 6116 RAM chips /media/museum/photos/panasonic_hhc_bottom_s1.jpg
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COMPLETE CASE /media/museum/photos/panasonic_hhc_complete-case.jpg
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QUASAR VERSION The quasar version was technically identical as the Panasonic version. Only the external design was different. Note the '8' number at the bottom right, saying it was a 8 KB version /media/museum/photos/panasonic_quasar_system_1.jpg
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QUASAR CASE /media/museum/photos/panasonic_hhc_complete-case-quasar.jpg
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INSIDE The internal HHC hardware is made of two stacked cards. The upper one is the logic card, the bottom one is dedicated to the keyboard and LCD display management.\ Ecxept for the I/O chip the logic card only uses standard I.C. **(1)** These three removable ROM chips hold a custom program or programming language\ **(2)** 2K x 8-bit 6116 static RAM chips\ **(3)** 6502 microprocessor\ **(4)** Custom I/O chip\ **(5)** The LCD display and its associated chips came from Epson\ **(6)** 2 x 8K ROM chips which hold the system routines and the SNAP interpreter /media/museum/photos/panasonic_hhc_inside_s1.jpg
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U.S. AD #1 (1982) The HHC advertising campain was not really attractive: black & white, lots of small characters texts, small pictures... /media/museum/pubs/panasonic_hhc_pub2.jpg
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U.S. AD #2 (1982) /media/museum/pubs/panasonic_hhc_pub_1.jpg
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QUASAR AD (1983) The 8 KB quasar system with the 4 color plotter/printer interface. The small picture shows a complete system with memory expansion, modem and video interfaces. /media/museum/pubs/panasonic_quasar_pub_1.jpg
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PICTURES FROM POPULAR SCIENCE MAGAZINE dated november 1980 /media/museum/pubs/panasonic-hhc-quazar_popscience_nov-1980.jpg
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PANASONIC PRINTER Panasonic RL-P1004A 40 character per line thermal printer and tape recorder interface. /media/museum/hardware/panasonic_hhc_printer_s1.jpg
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https://web.archive.org/web/20221209195935/http://www.old-computers.com/museum/computer.asp?c=644 2022-12-09

After buying the Franco-American CIE Friends Amis (Amis means Friends in French) and their hand held computer project, Matsushita manufactured the computer and sold it under Panasonic (RL-Hxx series) and Quasar (HK-2600TE) brand names. About 70.000 Panasonic systems were sold.

The system was mainly conceived to run custom software developed by third companies. For this reason, it didn't included powerful built-in software or languages but featured an universal expansion port able to manage several peripherals simultaneously, and three ROM chip compartments. Examples of available software are: Portawriter, Telecomputing 1-2-3, File Exchange, Portacalc, Portaflex (store management), Portabudget, Portabroker, Porta Bid, Portastock, Portalog, Portasales, Portaservice, Portaaudit, etc.

The system featured SNAP, an interpreted programming language, close to Forth and not really easy to learn. Hopefully, a light version of the Microsoft BASIC interpreter ROM could be added.

The HHC (for "Hand Held Computer") had great success in USA, mainly in insurance companies thanks to a built-in custom insurance calculation application dedicated to claim adjusters and travelling salesmen who could make any insurance quotation and print it, anywhere, anytime. Few systems were sold in other countries.

The picture shows a system with a Printer/Cassette interface attached. User had to buy it to save programs files on tape! The printer used a small roll of thermal paper of 75 mm wide. It printed 16 chars. per line at a speed of 24 chars./second.

Graphic possibilities were available as an option, as well as a TV video interafce which enabled the HHC to be connected to a TV through a scart connector. The HHC could then display 32 x 16 characters in text mode (character matrix 5 x 7), or 128 x 64 with 8 colors in semi-graphic mode or 128 x 128 with 4 colors in graphic mode.


EPROM expansion board, by Tom Klein
When working for FIPSCO - a life insurance marketing software producer - we designed a EPROM expansion board. It was housed in a one-inch thicker tray and interfaced between the printer and compueter, adding about 1 inch to the length. The main unit would only hold 4-8K EEPROMs but the address space for each "slot" was for 16K. So we put 8-64K EEPROMS in crimp molds into sockets in the expansion box. Each chip looked like 4 to the OS.

By doing this we could hold more rates and product illustration software, reducing the requirement the agent "change chips" in front of the customer. Turns out Motorola had a lock on the 8K chips and the 64K were less expensive.
We could illustrate and print one insurance illustration faster than a 286 at the time. And it fit in the briefcase. The expander box kept the unit in the field for an extra 3 to 5 years until laptops became reliable, powerful and affordable.

Curt Benjamin adds:
Many two-way radio shops still use the Panasonic HHC (part of the GE TQ-2310 "suitcase" programmer) to program GE two-way radios. Our shop still has a working one although it has since been replaced by a DOS program and radio interface box. More info here.