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To determine the current Gregorian date, a GPS receiver must be provided with the approximate date (to within 3,584 days) to correctly translate the GPS date signal. To address this concern in the future the modernized GPS civil navigation (CNAV) message will use a 13-bit field that only repeats every 8,192 weeks (157 years), thus lasting until ...
ENIAC was a large, modular computer, composed of individual panels to perform different functions. Twenty of these modules were accumulators that could not only add and subtract, but hold a ten-digit decimal number in memory. Numbers were passed between these units across several general-purpose buses (or trays, as they were called). In order ...
At the same time, Gorbachev pressured his Cuban allies in Angola to scale down activities and withdraw even though Soviet allies were faring somewhat better there. [220] The Soviets also pulled many of their troops out of Mongolia in 1987, where they were also having a far easier time than in Afghanistan, and restrained the Vietnamese invasion ...