VMU stands for Virtual Memory Unit, also referred to as VMS; Virtual Memory System. They are slightly larger than a matchbox and have a small LCD screen and controller pad on one side. They are primarily used for saving Dreamcast games, but also have the facility to run games on their own LCD screen.
More information

Related categories 1

booyaka.com: VMU Development
Tools, saved games, mini-games, discussions, technical information and downloads for the Dreamcast Virtual Memory Unit.
The Dreamcast Browsers Group
Only place to find browser add-ons scripts (run from the VMU) for the Dreamcast Browsers. Also the home of the world's first open-source VMU file uploader.
VMU Space Invaders
The site contains the VMU Space Invaders game. Also has free source code to the game as well as useful VMU programming links.
Last update:
May 7, 2018 at 8:15:08 UTC
Games
Health
Home
News
Recreation
Reference
Regional
Science
Shopping
Society
Sports
All Languages
Arts
Business
Computers