Zoomracks
Zoomracks was a database management system for the Atari ST platform that used a card-file metaphor for displaying and manipulating data. A database was stored in a "rack" which sorted cards into groups which could be "zoomed in" on to display data. It's main claim to fame was a lengthy lawsuit failed against Apple Computer by the author, who claimed Apple's HyperCard infringed on his software patents.
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