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Sheepdoll
Member Since: January 23, 2014
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Posts: 143

Julie started working with computers while in the late 1970s, while still in high school.   Her computer class was loosely associate to the early Homebrew computer user groups in theSan Francisco Bay area.  Graduated from Diablo Valley college with an AA in theater and an Electronics Engineering technology certificate in 1982. Julie sold and supported  Apple /// and Lisa Computers in the 1980s before joining Apple Imaging in the early 1990s as a postscript quality engineer  coding tests and firmware diagnostics on the Apple LaserWriter printers.
As a collector of Merry-Go-Round organs and Automata(Mechanical dolls) She has somehow managed to make the restoration and building of pipe organs containing electronic control systems her day job. Other interest include early computing from ancient Greece and pre-industrial England.   She is an active historical costumer and early adopter of the steam punk design aesthetic.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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