Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


ZX Spectrum T-shirts!

see details
Ready prompt T-shirts!

see details
ZX81 T-shirts!

see details
Arcade cherry T-shirts!

see details
Spiral program T-shirts!

see details
Atari joystick T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Moon Lander T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
Atari ST bombs T-shirts!

see details
C64 maze generator T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Pixel adventure T-shirts!

see details
Breakout T-shirts!

see details
Vector ship T-shirts!

see details



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.

Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


I''m looking to assembly programming information and to purchase the following items for this system or the system including these items. Does anyone have a TV/monitor interface or any extra info about it? Does anyone have any extra information about (or have?) the EPROM expansion board that Tom Klein described on the main page here for the HHC? He said, "It was housed in a one-inch thicker tray and interfaced between the printer and compueter, adding about 1 inch to the length." And it had sockets for 8-64K EEPROMS. I am curious how the bankswitching was performed.

Tuesday 6th August 2019
Jerri Kohl (United States)
Retro Dawn

I have the entire set up of the hhc panasonic still in the brief case it came in. looking to sell it today. Program books and the instructions it was bought with. mint condition. no reasonable offer refused. questions and comments please email me. happy to show . it works .

Friday 1st August 2014
jason beck (United States)

I am looking to buy a printer for the tq2310 dose anyone know where to find one for sale thanks

Monday 7th July 2014
Jimmy james (Indiana USA)


TYPE  Pocket
YEAR  1981
KEYBOARD  65 keys, calculator type. All the keys are redefinable.
CPU  6502 Low power NMOS version
SPEED  1 Mhz
RAM  2, 4 or 8 KB. Up to 96 KB with 4, 8 or 16 KB memory modules.
ROM  16 KB internal - 3 x optional 16 KB modules
TEXT MODES  LCD display - 1 line x 26 chars.
GRAPHIC MODES  8 x 159 dots
COLORS  Monochrome
SIZE / WEIGHT  227 x 95 x 30,5 mm / weight: 570 gr.
I/O PORTS  44-pin expansion port, 3 sockets for program ROM's
BUILT IN MEDIA  Tape recorder interface built into the printer expansion
POWER SUPPLY  5 x built-in Ni-Cad batterie 'AA' type (80 hours autonomy) or external 9 v. P.S.U.
PERIPHERALS  Printers, I/O expansion interface, RS-232 interface, IEEE 488 interface, TV display interface, acoustic modem, RAM expansions, disk drive, EPROM burner, etc.
PRICE  $500

Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
Arcade cherry
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Vector ship

Related Ebay auctions in real time - click to buy yours

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -