Acorn ACA56 PC Card (Upgraded)

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The Acorn ACA56 is a second generation Risc PC PCcard, also known as Gemini II. The Texas Instruments 486 DX4 is clocked at 100MHz. The ACA56 has its 486 mounted in a socket which allows it to be upgraded with a compatible CPU. This card has been upgraded with a Cyrix 5x86-100 which is pin compatible with a 486 and designed to upgrade 486 computers.

The original 486-DX6 chip (not pictured) is stored with the card.

Date : Unknown

Manufacturer : Acorn Computers

Physical Description : circuit board original card

This exhibit has a reference ID of CH33715. Please quote this reference ID in any communication with the Centre for Computing History.