The National (also known as Panasonic or Matsushita in other countries) JR series was pretty popular in Japan. Small quantities were sold outside Japan, in New Zeland among other countries.
Little is known about the first system of the range (please help!). It was obviously an initiation machine with black & white display and rubber keyboard.
Thanks to Murray Moffatt from New Zeland for most of the information and pictures.
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.
Please consider donating your old computer / videogame system to Old-Computers.com or one of our partners from anywhere in the world (Europe, America, Asia, etc.).
I found a some more software at https://www.gamingalexandria.com/wp/category/type-in-programs/type-in-programs-jr-100/ They also link to a JR-100 emulator.
Monday 5th December 2022
Murray Moffatt (Auckland, New Zealand)
I had it when I studied at Sec. 2. So good memories!
Tuesday 2nd March 2021
RONO (HK)
Looks exactly like the Lambda 8300.
Friday 30th September 2016
Jesper
NAME
National JR 100
MANUFACTURER
Matsushita
TYPE
Home Computer
ORIGIN
Japan
YEAR
1981
END OF PRODUCTION
Unknown
BUILT IN LANGUAGE
Basic interpreter
KEYBOARD
Poor rubber keyboard
CPU
MN 1800A (6802 compatible)
SPEED
890 KHz
RAM
16 KB (up to 32 KB)
VRAM
1 KB
ROM
8 KB
TEXT MODES
32 chars. x 24 lines
GRAPHIC MODES
64 characters with 6 x 7 dot matrix, 64 semi-graphic characters with 8 x 8 matrix, 32 User Defined Graphics with 8 x 8 matrix
COLORS
Monochrome
SOUND
Buzzer
SIZE / WEIGHT
Unknown
I/O PORTS
Monitor, Expansion, Tape
BUILT IN MEDIA
None
POWER SUPPLY
Model JR-A12 power adaptor., Output: +7.8V (700 mA), -8V (10 mA), +17V (130 mA)
PERIPHERALS
An expansion unit (JR-U05) was created which added an extra 16 KB RAM, joystick and RS232 port. It was only available in Japan.
