It was sold by Myarc as a card to fit into the Texas Instruments TI Peripheral Expansion System.
Onboard memory consists of 512 KB CPU RAM, which can be upgraded to at least 2 MB through the use of the Myarc Memex Expansion Card or similar.
An adapter was made by a company named Rave to allow the sidecar-only Speech Synthesizer to be installed inside the Peripheral Expansion System.
The following software is bundled with the Geneve:[5] In 1993, Beery Miller, the publisher of 9640 News, organized a group of Geneve 9640 owners and was able to purchase all rights to the source code for MDOS, Advanced Basic, the PSYSTEM runtime module, and the GPL Interpreter from Myarc and Paul Charlton.
A small but active base of users still exist on www.atariage.com as of 2021, where Tim Tesch, Beery Miller, and others provide support.