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  2. Internal mail - Wikipedia

    en.wikipedia.org/wiki/Internal_mail

    Pigeon-hole messageboxes at Stanford University, California, USA. In a large organization with many employees, there is frequently an internal mail system. The post room or mail room sorts the incoming mail and the 'mailboy' or 'mail clerk' takes it around on a trolly to the various pigeon-holes and direct to the desks of other colleagues.

  3. Apollo PGNCS - Wikipedia

    en.wikipedia.org/wiki/Apollo_PGNCS

    Apollo Command Module primary guidance system components Apollo Lunar Module primary guidance system components Apollo Inertial Measurement Unit. The Apollo primary guidance, navigation, and control system (PGNCS, pronounced pings) was a self-contained inertial guidance system that allowed Apollo spacecraft to carry out their missions when communications with Earth were interrupted, either as ...

  4. Galileo GDS - Wikipedia

    en.wikipedia.org/wiki/Galileo_GDS

    Galileo International was born when Covia acquired Europe's Galileo and merged it with the Apollo system in 1992. [3] The Apollo reservation system was used by United Airlines until 3 March 2012, when it switched to SHARES, a system used by its former Continental Airlines subsidiary. Apollo is still used by Galileo International (now part of ...

  5. Unified S-band - Wikipedia

    en.wikipedia.org/wiki/Unified_S-band

    The Unified S-band (USB) system is a tracking and communication system developed for the Apollo program by NASA and the Jet Propulsion Laboratory (JPL). It operated in the S band portion of the microwave spectrum, unifying voice communications, television , telemetry , command , tracking and ranging into a single system to save size and weight ...

  6. Apollo Computer - Wikipedia

    en.wikipedia.org/wiki/Apollo_Computer

    Apollo workstations ran Aegis (later replaced by Domain/OS), a proprietary operating system with a Unix alternative shell. Apollo's networking was particularly elegant, among the first to allow demand paging over the network, and allowing a degree of network transparency and low sysadmin -to-machine ratio.

  7. Launch Vehicle Digital Computer - Wikipedia

    en.wikipedia.org/wiki/Launch_Vehicle_Digital...

    The result was an estimated reliability of 99.6% over 250 hours of operation, which was far more than the few hours required for an Apollo mission. With four memory modules, giving a total capacity of 16,384 words, the computer weighed 72.5 lb (32.9 kg), was 29.5 by 12.5 by 10.5 inches (750 mm × 320 mm × 270 mm) in size and consumed 137W.

  8. Launch status check - Wikipedia

    en.wikipedia.org/wiki/Launch_status_check

    In the Apollo program, the MCC launch status check was initiated by the Flight Director, or FLIGHT. The following "preflight check" order was used before the launch of Apollo 13: [ 7 ] BOOSTER – Booster Systems Engineer (monitored the Saturn V in pre-launch and ascent)

  9. Domain/OS - Wikipedia

    en.wikipedia.org/wiki/Domain/OS

    Domain/OS is the discontinued operating system used by the Apollo/Domain line of workstations manufactured by Apollo Computer.It was originally launched in 1981 as AEGIS, and was rebranded to Domain/OS in 1988 when Unix environments were added to the operating system.