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Tandy began life in 1919, in the business of leather goods — making it something of a US analogy to Finland's Nokia, which started off making paper. Along with Commodore (another entry in this list), Tandy was at the forefront of the PC industry in its time.
The 1977 TRS-80, sold through Tandy's Radio Shack stores, was one of the first popular personal computers. The company later moved to IBM compatibility, and its PCs' video and sound capabilities led the market in the early 1980s. However, the introduction in the early 1990s of VGA graphics cards and Sound Blaster audio cards killed this competitive advantage. Tandy even moved into notebooks for a time from the end of the 1980s, with products including the 1400 (pictured).
Tandy sold its PC business to AST in 1993, and the new owners soon shut down their newly purchased manufacturing facilities. Radio Shack began to sell other brands of PC, and the Tandy brand disappeared for good in 2000.
Photo credit: Retep412