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DSOS
DSOS (Deep Six Operating System) was a real-time operating system (sometimes referred to as an operating system kernel) developed by Texas Instruments' Geophysical Services division (GSI) in the mid-1970s.
== Background ==
The Geophysical Services division of Texas Instruments' main business was to search for oil. They would collect data in likely spots around the world, process that data using high performance computers, and produce analyses that guided oil companies toward promising sites for drilling.
Much of the oil being sought was to be found beneath the ocean, hence GSI maintained a fleet of ships to collect seismic data from remote regions of the world. In order to do this properly is was essential that the ships be navigated precisely - if you find evidence of oil, you can't just mark an "X" on a tree - the oil is thousands of feet below the ocean and you are typically hundreds of miles from land. But this was a decade or more before GPS existed, thus the processing load to keep an accurate picture of "where you are" was considerable.
The GEONAV systems, which used DSOS (Frailey, 1975) as their operating system, performed the required navigation and, in addition, collected, processed and stored the seismic data being received in real-time.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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