Thanks to the following people who contributed PDFs, software, photos and other content to this site:
Bill Martens
Brian Wiser
Bill Bredehoft
Christopher G. Mason
Jamie Steffens
John Woodall
Marc Ressl
The Extended 80 Column card was released in several versions. The Memory Master is an early model, reduced-chip substitute, for Apple's Extended 80-Column card, providing 80 columns + 64K RAM. The Rev A Extended 80-Column Card, or the Qutron-1, is a second generation revision.
Website created by Brian Wiser and Bill Martens
