C64 maze generator
Pak Pak Monster
PX 4 / HC 40
This computer is the successor of the
The main cosmetic difference is a wider screen that can be adjusted to the right angle.
There are 2 ROM slots under the machine to implement additional ROM programs.
On the right of the LCD display can be plugged a tape-recorder, a plotter, RAM expansions, a lot of things or ... nothing.
A lot of peripherals were available for this little computer (see hardware page), at least in japan.
The PX-4 was logically followed by the PX-8.
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)
see more Epson PX 4 / HC 40 Ebay auctions !