Amstrad PenPad PDA600

Launched in March 1993, the Amstrad PenPad PDA600 was a pocket personal digital assistant operated entirely with a stylus. Its pressure-sensitive 240 × 320 LCD and handwriting recognition replaced a keyboard, while built-in address book, diary, to-do list, calculator and note applications imitated a paper organizer.

The PDA600 stored information in 128KB of battery-backed RAM and accepted Type I PCMCIA memory cards up to 2MB. It reached the market before Apple’s Newton, but handwriting limitations, restricted expansion and a £299.99 price contributed to disappointing sales.

Notable Features

• Stylus-operated 240 × 320 pressure-sensitive display
• Boxed handwriting recognition licensed from Texas Instruments
• Address book, diary, to-do list, notes, calculator and world-time applications
• 128KB battery-backed memory with Type I PCMCIA expansion
• Up to approximately 40 hours from three AA batteries

Historical Significance

• One of the first consumer products marketed explicitly as a personal digital assistant
• Reached the market before Apple’s Newton MessagePad
• Designed in Britain by the Eden Group for Amstrad
• Commercial failure led to heavy discounting despite substantial initial production

Collectors Notes

• Data depends on batteries and the lithium backup cell, so replace them carefully
• Stylus calibration and digitiser condition are crucial
• Original PC-link cable and Windows organizer software are uncommon
• Reflective screen layers can reduce contrast with age

Specifications

Technical Information
Name	Amstrad PenPad PDA600
Manufacturer	Amstrad
Launched	Monday, March 1, 1993
Discontinued	1994
Launch Price	£299.99 including VAT; US launch announced at $499
Country	United Kingdom
CPU	Zilog Z8S180 with two supporting Z80-compatible controllers
Units Sold
Battery Life	Approximately 40 hours claimed
Power	Three AA batteries with CR2032 lithium backup cell
Expansion	Type I PCMCIA slot and proprietary 8-pin serial connection
Storage	Internal battery-backed memory and Type I PCMCIA SRAM cards from 32KB to 2MB
Input	Stylus with boxed handwriting recognition
Software	Address book, diary, to-do list, notepad, calculator, conversions, world time and alarms
RAM	128KB battery-backed RAM
Graphics	Monochrome pen interface with printed touch-sensitive border controls
Display	240 × 320 reflective monochrome LCD with pressure-sensitive digitiser
CPU Speed	Z8S180; contemporary sources report approximately 14.3 to 20 MHz