Acorn A4

Acorn · 1992

The first ARM laptop. Acorn folded an ARM3 at 24MHz and RISC OS 3.11 into a clamshell with a mono LCD in 1992, years before anybody else shipped a portable RISC machine. Expensive, made in small numbers, and now genuinely rare — the screens and the batteries are the usual casualties. A landmark given what ARM laptops eventually became.

As catalogued

Maker
Acorn
CPU
Acorn ARM3-24
Memory
2MiB, 4MiB
Styles
A4
Regions
PAL (UK)
Chassis
laptop with a mono LCD
OS
RISC OS 3.11

Chips

3
CPU
Acorn ARM3
Floppy controller
WD1772
OS ROM
RISC OS 3.11

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