ZX81 T-shirts!
ZX Spectrum T-shirts!
Ready prompt T-shirts!
Spiral program T-shirts!
Arcade cherry T-shirts!
Atari joystick T-shirts!
Battle Zone T-shirts!
Vectrex ship T-shirts!
Moon Lander T-shirts!
C64 maze generator T-shirts!
Competition Pro Joystick T-shirts!
Atari ST bombs T-shirts!
Elite spaceship t-shirt T-shirts!
Pak Pak Monster T-shirts!
BASIC code T-shirts!
Breakout T-shirts!
Pixel adventure T-shirts!
Vector ship T-shirts!
This computer is the successor of the HX-20 .
PX-8 .
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 have one of these in a box somewhere, along with the PROM writer...... very funky little unit, well ahead of its time.
Thursday 29th March 2012 Simon (Australia)
When I did A-level computing in 1990, I remember doing a case study of how the UK music singles chart worked. Shops entered details of sales into little computers, and I remember that the Epson PX-4 was specifically named. No idea if it was true, though!
Friday 4th May 2007 Ian Chard (UK)
NAME PX 4 / HC 40 MANUFACTURER Epson TYPE Portable ORIGIN Japan YEAR 1984 BUILT IN LANGUAGE Basic KEYBOARD Full-stroke keyboard (chicklet keyboard available) CPU uPD 70008 (Z80 compatible ) SPEED 3.6864 MHz CO-PROCESSOR CMOS 7508 4bit : handles housekeeping, clock, battery, etc. RAM 64 KB : 64 Kbit CMOS D-RAM x 8 ROM 96 KB : 256 K-bit CMOS ROM X 3 TEXT MODES 40 x 8 GRAPHIC MODES 240 x 64 COLORS Monochrom LCD display SOUND Beeper SIZE / WEIGHT A4 size I/O PORTS Serial, RS232c, cassette, cartridge port, printer (parallel) port, expansion port, sound in & out BUILT IN MEDIA Microcasette OS CP/M with disk-drives units POWER SUPPLY Built-in battery which can last for 4 hours PERIPHERALS Printers, plotters, tape-recorder, ROM & RAM expansion, barcode reader, EPROM burner, replacement keyboard, modem and more... PRICE 1590 FF (France, january 1988)
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