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The AT&T UNIX PC is a Unix desktop computer originally developed by Convergent Technologies [2] (later acquired by Unisys), [5] [1] and marketed by AT&T Information Systems in the mid- to late-1980s. The system was codenamed "Safari 4" [6] and is also known as the PC 7300. An updated version with larger hard drive was dubbed the "3B1".
In 1984, after regulatory constraints were lifted, AT&T introduced the 3B20D, 3B20S, 3B5, and 3B2 to the general computer market, [1] [5] a move that some commentators saw as an attempt to compete with IBM. [6] In Europe, the 3B computers were distributed by Italian firm Olivetti, in which AT&T had a minority shareholding.
AT&T Computer Systems (abbreviated AT&T-CS) was the home of the UNIX System V operating system, originally developed in the Bell Labs Research Division. The important System V Interface Definition (SVID) was written, attempting to standardize the various flavors of Unix , and define the official interfaces which made up a Unix operating system.
The AT&T Hobbit is a microprocessor design developed by AT&T Corporation in the early 1990s. It was based on the company's CRISP (C-language Reduced Instruction Set Processor) design resembling the classic RISC pipeline , and which in turn grew out of the C Machine design by Bell Labs of the late 1980s.
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AT&T (originally American Telephone & Telegraph Company), after divesting ownership of the Bell System, restructured its remaining companies into three core units. American Bell, Bell Labs and Western Electric were fully absorbed into AT&T, and divided up as an umbrella of several specifically focused companies held by AT&T Technologies, [1] including:
AT&T Information Systems (ATTIS), originally known as American Bell, was the fully separate subsidiary of American Telephone & Telegraph Company (AT&T) which focused on computer technology ventures and telephone sales, and other unregulated business. It was one of the three core units of AT&T formed after the breakup of the Bell System.
Final AT&T Labs logo, 1999-2005. AT&T Laboratories, Inc., known informally as AT&T Labs, was founded in 1996, as a result of the split of AT&T Bell Laboratories into separate R&D organizations supporting AT&T Corporation and Lucent Technologies. Lucent retained the name Bell Labs and AT&T adopted the name AT&T Laboratories for its R&D organization.