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Mansa Musa was the ruler of the Mali Empire in West Africa. Details recorded here should be sourced; unknown information is left blank.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
A content-addressable parallel processor (CAPP) a.k.a. in Flynn's 1972 taxonomy as an associative processor[1] is a type of parallel processor which uses content-addressing memory (CAM) principles. CAPPs are intended for bulk computation. The syntactic structure of their computing algorithm are simple, whereas the number of concurrent processes may be very large, only limited by the number of locations in the CAM. The best-known CAPP may be STARAN, completed in 1972; several similar systems were later built in other countries.
A CAPP is distinctly different from a Von Neumann architecture or classical computer that stores data in cells addressed individually by numeric address. The CAPP executes a stream of instructions that address memory based on the content (stored values) of the memory cells. As a parallel processor, it acts on all of the cells containing that content at once. The content of all matching cells can be changed simultaneously.
A typical CAPP might consist of an array of content-addressable memory of fixed word length, a sequential instruction store, and a general purpose computer of the Von Neumann architecture that is used to interface peripherals.
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A content-addressable parallel processor (CAPP) a.k.a. in Flynn's 1972 taxonomy as an associative processor is a type of parallel processor which uses content-addressing memory (CAM) principles. CAPPs are intended for bulk computation. The syntactic structure of their computing algorithm are simple, whereas the number of concurrent processes may be very large, only limited by the number of locations in the CAM. The best-known CAPP may be STARAN, completed in 1972; several similar systems were later built in other countries. A CAPP is distinctly different from a Von Neumann architecture or classical computer that stores data in cells addressed individually by numeric address. The CAPP executes a stream of instructions that address memory based on the content (stored values) of the memory cells. As a parallel processor, it acts on all of the cells containing that content at once. The content of all matching cells can be changed simultaneously. A typical CAPP might consist of an array of content-addressable memory of fixed word length, a sequential instruction store, and a general purpose computer of the Von Neumann architecture that is used to interface peripherals.
STARAN in the information technology industry might be the first commercially available computer designed around an associative memory. The STARAN computer was designed and built by Goodyear Aerospace Corporation. It is a content-addressable parallel processor (CAPP), a type of parallel processor which uses content-addressable memory. STARAN is a single instruction, multiple data array processor with a 4x256 1-bit processing element (PE) computer. The STARAN machines became available in 1972. Goodyear Aerospace later developed the MPP based on similar principles but with a larger and wider processor array.
Content-addressable memory (CAM) is a special type of computer memory used in certain very-high-speed searching applications. It is also known as associative memory or associative storage and compares input search data against a table of stored data, and returns the address of matching data. CAM is frequently used in networking devices where it speeds up forwarding information base and routing table operations. This kind of associative memory is also used in cache memory. In associative cache memory, address and content are stored side by side. When the address matches, the corresponding content is fetched from cache memory.
A massively parallel processor array, also known as a multi purpose processor array (MPPA) is a type of integrated circuit which has a massively parallel array of hundreds or thousands of CPUs and RAM memories. These processors pass work to one another through a reconfigurable interconnect of channels. By harnessing a large number of processors working in parallel, an MPPA chip can accomplish more demanding tasks than conventional chips. MPPAs are based on a software parallel programming model for developing high-performance embedded system applications.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.