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TI Advanced Scientific Computer
The Advanced Scientific Computer, or ASC, was a supercomputer architecture designed by Texas Instruments (TI) between 1966 and 1973. Key to the ASC's design was a single high-speed shared memory, which was accessed by a number of processors and channel controllers, in a fashion similar to Seymour Cray's groundbreaking CDC 6600. Whereas the 6600 featured ten smaller computers feeding a single math unit (ALU), in the ASC this was simplified into a single 8-core processor feeding the ALU. The 4-core ALU/CPU was one of the first to include dedicated vector processing instructions, with the ability to send the same instruction to all four cores.
==History==
TI had begun as a division of Geophysical Service Incorporated (GSI), a company that performed seismic surveys for oil exploration companies. GSI was now a subsidiary of TI, and TI wanted to apply the latest computer technology to the processing and analysis of seismic datasets. The ASC project started as the ''Advanced Seismic Computer''. As the project developed, TI decided to expand its scope. "Seismic" was replaced by "Scientific" in the name, allowing the project to retain the designation ASC.
Originally the software, including an operating system and a FORTRAN compiler, were done under contract by Computer Usage Company, under direction of George R. Trimble, Jr.
but later taken over by TI itself. Southern Methodist University in Dallas developed an ALGOL compiler for the ASC.
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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