Acorn ACA42 PC Card

The PCcard fits in the second CPU card slot on the RiscPC and enables it to run as a PC. This is the original Acorn 486 PCcard, it has a Texas Instruments 486 SXL-40 CPU. The 486 CPU has 8KB on chip cache and a 32bit bus. On this card it is clocked at 33MHz.. These PCcards are also know as Gemini I cards because of they used a common card design.

Tha Acorn ACA42 PC Card was shipped with Novell DRDOS.

Acorn Press Release RiscPC 486 card Questions and Answers 

In June 1995 Personal Computer World published a review titled "Acorn RISC PC 486 Co-processor "

For further details about RiscPC PCcards see Acorn Cybervillage X86.

Here is the Acorn PC x86 card software disc . However is is better to use the more recent Aleph1 PCPro software.
Here is the Aleph1 PCPro v3.06  software to configure and run this PCcard. Aleph1 have released PC & PCPro software under the GPL, further details are available from .

Date : 1994

Manufacturer : Acorn

Physical Description : Expansion card.

This exhibit has a reference ID of CH49532. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: Acorn ACA42 PC Card

Click on the Image For Detail

Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum