The story
Founded by Tarrnie Williams in 1978.1
Private company
Canadian software company
Sydney Development Corporation (SDC) was the first publicly traded software company in Canada. Founded by Tarrnie Williams, SDC developed an online real-time project management system for the IBM System/370 mainframe computer, then various different business applications for microcomputers such as the Apple II, and eventually became the first developer and publisher of computer games for microcomputers in Canada.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
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Sydney Development Corporation (SDC) was the first publicly traded software company in Canada. Founded by Tarrnie Williams, SDC developed an online real-time project management system for the IBM System/370 mainframe computer, then various different business applications for microcomputers such as the Apple II, and eventually became the first developer and publisher of computer games for microcomputers in Canada.2
Founded by Tarrnie Williams in 1978.1
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