Commodore International Historical Society Blog

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Paper plots of Commodore chip layouts

As I mentioned in a previous post, Sandy Roshong Fisher worked on Commodore’s IC layout team in West Chester, PA from February, 1982 through June, 1993 when she was laid off.  During that time...

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Sandy Fisher memories

Sandy Roshong was hired by Commodore in 1982 in their IC Layout Department.  She eventually married Terry Fisher, also a Commodore employee, and took his last name in marriage. This post is a simple...

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Commodore’s Early Expansion to the United States

Commodore’s Expansion into the United States Commodore was founded on October 10, 1958 as Commodore Portable Typewriter Company Limited in Toronto, Ontario, Canada.  This post will shed some light on their early expansion into...

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CP/M for the Commodore 64

CP/M was an operating system written by Gary Kildall, the founder of Digital Research, Inc, in 1974 which enjoyed early widespread popularity.  As early as 1979, Commodore’s VP of Marketing, Dennis Barnhart, proposed CP/M...

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The Commodore DryCopy Thermographic copying machine

Commodore DryCopy In early 1962, Commodore expanded into the field of copying machines by creating two new subsidiaries: Commodore Drycopy, Inc. (New York) and Commodore Drycopy, Ltd. (Toronto). Commodore studied the three major copying...

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Commodore Colt PC XT clone

Commodore Colt PC XT clone photo gallery This post is primary intended to be a photo gallery of a Commodore Colt PC XT clone, but I’ll include a small amount of historical information so...