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Definition of beta

beta

noun

  • This term derives from early 1960s terminology for product cycle checkpoints, first used at IBM but later standard throughout the industry. "Alpha Test" was the unit, module, or component test phase; "Beta Test" was initial system test. These themselves came from earlier A- and B-tests for hardware. The A-test was a feasibility and manufacturability evaluation done before any commitment to design and development. The B-test was a demonstration that the engineering model functioned as specified. The C-test (corresponding to today's beta) was the B-test performed on early samples of the production design, and the D test was the C test repeated after the model had been in production a while.

    by The Jargon File, Aug 14 2009.

  • Mostly working, but still under test.

    by The Jargon File, Aug 14 2009.

  • Anything that is new and experimental.
    His girlfriend is in beta

    by The Jargon File, Aug 14 2009.

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