Timeline Analog 4. John Buck

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      Dan Wright left GVG.

      As he did a young engineer, who helped changed the desktop video landscape, was offered a new challenge.

      Michael Johas Teener was a system architect at National Semiconductor after graduating Caltech in Engineering, where he:

       Learned how to learn, and that it's OK to be a "C" student when you are surrounded by *really* smart people.

      National was assessing ways to approach internal bus architectures.The Institute of Electrical and Electronics Engineers (IEEE), of which National was a member, wanted to merge the existing but incompatible options, VME, NuBus 2, and Futurebus.

      Teener was appointed chair of a project to unify the industry around a single serial bus architecture.

       "Serial" meaning that they transfer one bit at a time, rather than multiple bits simultaneously—parallel is faster, given the same signal frequency, but it comes with a higher overhead and has efficiency problems as you scale up the signal frequencies.

      Around the same time engineer David James, at another IEEE member company Hewlett-Packard, was interested in a new approach. He told Tenner:

       … we want it to go off the bus to connect to low-speed or modest-speed peripherals,' like floppy disks and keyboards and mice and all kinds of other stuff like that.

      Teener left National for Apple as the Macintosh maker was looking for a successor to the Apple Desktop Bus, ADB.

      It wanted the next version to be able to carry audio signals.

      Teener knew what was needed.

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