Discontinued device reference

This page contains a summary of hardware specifications for obsolete home computers, games consoles, and PDAs.

Home computers

TRS-80 (model I)


Release year	1977
CPU model	Zilog Z80
CPU frequency	1.774 MHz
RAM size	4 kB
Screen type	Monochrome CRT (green/black)
Screen resolution	64 x 16 characters
Palette size	2 colours (fixed)

Commodore 64 (NTSC)


Release year	1982
CPU model	MOS 6510
CPU frequency	1.023 MHz
RAM size	64 kB
Video resolution	320 x 200 pixels
Palette size	16 colours (fixed)

ZX Spectrum


Release year	1982
CPU model	Zilog Z80
CPU frequency	3.5 MHz
RAM size	16 kB
Video resolution	256 x 192 pixels
Palette size	8 colours (fixed)

Nintendo

Nintendo Entertainment System (NTSC)


Release year	1983
CPU model	Ricoh 2A03 (similar to MOS 6502)
CPU frequency	1.79 MHz
RAM size	2 kB
Video resolution	256 x 240 pixels

Nintendo Gameboy (DMG-01)


Release year	1989
CPU model	Sharp SM83 (similar to Zilog Z80)
CPU frequency	4.194 MHz
RAM size	2 kB
Screen resolution	160 x 144 pixels
Palette size	4 colours (fixed)

See mgba-emu.github.io/gbdoc/ for in-depth hardware specifications.

Psion

Psion Organiser

“The world’s first practical pocket computer.” A PDA.


Release year	1984
Case dimensions	14 x 9 cm
RAM size (static)	2kB
ROM size	4kB

Psion Organiser II

A PDA.


Release year	1986
Memory (unsure if RAM or ROM)	8-64 kB

Psion MC 200

A laptop computer.


Release year	1989
Case dimensions	31.4 x 27.7 x 4.9 cm
Weight	2.2 kg
CPU model	Intel 80C86
CPU frequency	7.68 MHz
RAM size	128-256 kB
Screen type	LCD
Screen resolution	640 x 200 pixels
Palette	2 colours (clear, black)
Audio in	Microphone
Audio out	Internal speaker

Psion MC 400

A laptop computer.


Release year	1989
Case dimensions	31.4 x 27.7 x 4.9 cm
Weight	2.2 kg
CPU model	Intel 80C86
CPU frequency	7.68 MHz
RAM size	640-1024 kB
ROM size	256 kB
Screen type	LCD
Screen resolution	640 x 400 pixels
Palette	2 colours (clear, black)

Psion MC 600

A laptop computer.


Release year	1989
Case dimensions	31.4 x 27.7 x 4.9 cm
Weight	2.2 kg
RAM size	768-1024 kB
ROM size	256 kB
Persistant storage	1 MB
Screen type	LCD
Screen resolution	640 x 400 pixels
Palette	2 colours (clear, black)

Psion Series 3

A PDA.


Release year	1991
Case dimensions	16.5 x 8.5 x 2.2 cm
Weight	0.265 kg
CPU model	NEC V30
CPU frequency	4.7 MHz
RAM size	128/256 kB
Screen type	LCD
Screen dimensions	92.4 x 34.4 mm
Pixel dimensions	0.35 x 0.40 mm
Pixel pitch	0.38 x 0.43 mm
Screen resolution	240 x 80 pixels
Palette	2 colours (clear, black)
Backlight	✗

Psion Series 3a

A PDA.


Release year	1993
Case dimensions	16.5 x 8.5 x 2.2 cm
Weight	0.265 kg
CPU model	NEC V30H
CPU frequency	7.68 MHz
RAM size	128/256 kB
Screen type	LCD
Screen dimensions	124.8 x 41.5 mm
Pixel dimensions	0.20 x 0.20 mm
Pixel pitch	0.26 x 0.26 mm
Screen resolution	480 x 160 pixels
Palette	3 colours (clear, grey, black)
Backlight	✗

Psion Series 3c

A PDA.


Release year	1996
Case dimensions	16.5 x 8.5 x 2.2 cm
Weight	0.275 kg
CPU model	NEC V30H
CPU frequency	7.68 MHz
RAM size	1024/2048 kB
Screen type	LCD
Screen dimensions	124.8 x 41.5 mm
Pixel dimensions	0.20 x 0.20 mm
Pixel pitch	0.26 x 0.26 mm
Screen resolution	480 x 160 pixels
Palette	3 colours (clear, grey, black)
Backlight	✓

Psion Series 3mx

A PDA.


Release year	1998
Case dimensions	16.5 x 8.5 x 2.2 cm
Weight	0.275 kg
CPU model	NEC V30MX
CPU frequency	27.684 MHz
RAM size	2048 kB
Screen type	LCD
Screen resolution	480 x 160 pixels
Backlight	✓

Psion HC 100

A handheld industrial computer.


Release year	1991
Case dimensions	20.0 x 8.0 x 3.5 cm
Weight	0.395 kg
CPU frequency	3.84 MHz
RAM (static)	128 kB
Screen dimensions	54.4 x 34.4 mm
Pixel dimensions	0.31 x 0.40 mm
Pixel pitch	0.34 x 0.43 mm
Screen resolution	160 x 80 pixels
Palette	2 colours (clear, black)
Backlight	✓

Psion Workabout

A handheld industrial computer.


Case dimensions	18.9 x 9.2 x 3.5 cm
Weight	0.325 kg
CPU model	V30H
CPU frequency	7.68 MHz
RAM (static)	256-1024 kB
ROM (masked)	1024 kB
Persistant storage	2 internal SSDs
Screen type	Reflective greyscale LCD
Screen dimensions	62.4 x 30.0 mm
Pixel dimensions	0.23 x 0.27 mm
Pixel pitch	0.26 x 0.30 mm
Screen resolution	240 x 100 pixels
Palette	3 colours (clear, grey, black)
Backlight	✓
Audio out	Piezo buzzer

Psion Workabout MX

A handheld industrial computer.


Case dimensions	18.9 x 9.2 x 3.5 cm
Weight	0.325 kg
CPU model	V30MX
CPU frequency	27.684 MHz
RAM (static)	2048 kB
ROM (masked)	2048 kB
Persistant storage	2 internal SSDs
Screen type	Reflective greyscale LCD
Screen dimensions	62.4 x 30.0 mm
Pixel dimensions	0.23 x 0.27 mm
Pixel pitch	0.26 x 0.30 mm
Screen resolution	240 x 100 pixels
Palette	3 colours (clear, grey, black)
Backlight	✓
Audio out	Piezo buzzer