yann64andClaude Opus 5.5
c913d792c4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
124 lines
4.2 KiB
Markdown
124 lines
4.2 KiB
Markdown
---
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title: Epson PX 4 / HC 40
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categories:
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- Computers
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types:
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- Portable
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origins:
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- Japan
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years:
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- '1984'
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cpus:
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- uPD 70008
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params:
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name: PX 4 / HC 40
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image: /media/museum/photos/epson_hx40_1.jpg
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company: /companies/epson
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company_name: Epson
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specs:
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- label: NAME
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value: PX 4 / HC 40
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- label: MANUFACTURER
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value: Epson
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- label: TYPE
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value: Portable
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- label: ORIGIN
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value: Japan
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- label: YEAR
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value: '1984'
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- label: BUILT IN LANGUAGE
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value: Basic
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- label: KEYBOARD
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value: Full-stroke keyboard (chicklet keyboard available)
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- label: CPU
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value: uPD 70008 (Z80 compatible )
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- label: SPEED
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value: 3.6864 MHz
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- label: CO-PROCESSOR
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value: 'CMOS 7508 4bit : handles housekeeping, clock, battery, etc.'
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- label: RAM
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value: '64 KB : 64 Kbit CMOS D-RAM x 8'
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- label: ROM
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value: '96 KB : 256 K-bit CMOS ROM X 3'
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- label: TEXT MODES
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value: 40 x 8
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- label: GRAPHIC MODES
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value: 240 x 64
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- label: COLORS
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value: Monochrom LCD display
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- label: SOUND
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value: Beeper
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- label: SIZE / WEIGHT
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value: A4 size
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- label: I/O PORTS
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value: Serial, RS232c, cassette, cartridge port, printer (parallel) port, expansion port, sound in & out
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- label: BUILT IN MEDIA
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value: Microcasette
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- label: OS
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value: CP/M with disk-drives units
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- label: POWER SUPPLY
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value: Built-in battery which can last for 4 hours
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- label: PERIPHERALS
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value: Printers, plotters, tape-recorder, ROM & RAM expansion, barcode reader, EPROM burner, replacement keyboard, modem and more...
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- label: PRICE
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value: 1590 FF (France, january 1988)
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tabs:
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- photos
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- hardware
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- links
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photos:
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- title: JAPANESE USER MANUAL
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subtitle: ''
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text: |-
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Hello sweety !
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Thanks to the [TATA EPSON HC-40 Page](http://page.freett.com/tata93/hc40.htm) for this picture.
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image: /media/museum/photos/epson_hc40_manual_p1.jpg
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hardware:
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- title: EPROM WRITER CARTRIDGE
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subtitle: ''
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text: Epson H415A-EA1 Prom Writer Cartridge II. It plugged into the corner expansion port of the PX-4 and had a 32pin ZIF (Zero Insertion Force) socket.
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image: /media/museum/hardware/epson_px8_promwritermodule_1.jpg
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- title: EXPANSION SKETCH
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subtitle: ''
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text: |-
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There are for sure a lot of peripherals available for the HC-40 ! Wow...
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There are printers, plotters, RAM & ROM expansions, disk-drives, EPROM burner, barcode reader, keypad, etc...
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A larger and better picture is available at the [TATA EPSON HC-40 Page](http://page.freett.com/tata93/hc40.htm).
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Thanks to the [TATA EPSON HC-40 Page](http://page.freett.com/tata93/hc40.htm) for this picture.
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image: /media/museum/hardware/epson_hc40_expansion-sketch.jpg
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links:
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- title: Epson PX4 info page
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url: http://www.discordia.org.uk/px4/
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text: Pinouts and CP/M command reference among other things
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- title: TATA EPSON HC-40 Page
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url: http://page.freett.com/tata93/hc40.htm
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text: Great informations here (Japanese) !
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comments:
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- author: Simon (Australia)
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date: Thursday 29th March 2012
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text: I have one of these in a box somewhere, along with the PROM writer...... very funky little unit, well ahead of its time.
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- author: Ian Chard (UK)
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date: Friday 4th May 2007
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text: 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!
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oc_id: 370
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source:
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url: https://web.archive.org/web/20230608211026/http://www.old-computers.com/museum/computer.asp?c=370
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date: '2023-06-08'
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---
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This computer is the successor of the [HX-20](/museum/epson-hc-hx-20/).
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The main cosmetic difference is a wider screen that can be adjusted to the right angle.
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There are 2 ROM slots under the machine to implement additional ROM programs.
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On the right of the LCD display can be plugged a tape-recorder, a plotter, RAM expansions, a lot of things or ... nothing.
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A lot of peripherals were available for this little computer (see hardware page), at least in japan.
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The PX-4 was logically followed by the [PX-8](/museum/epson-px-8-hc-88-geneva/).
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