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A computer chip that contains two or more CPU processing units. Instead of continuing to squeeze more speed out of a single processor, it became obvious years ago that creating chips with multiple processing cores was the more practical approach. All major operating systems were updated to support this "symmetric multiprocessing" (SMP) capability, which enables, for example, the OS to run in one core, while each application runs in another. Antivirus running in the background can occupy its own core, and multicore architecture is ideal for virtualized servers (see virtual machine). Applications requiring extensive computations on separate sets of data, such as video encoding and 3D rendering, can also take advantage of multicore processing.

From Two to Dozens of Cores
Starting in 2005, dual-core and quad-core chips began to emerge for the x86 platform, and in subsequent years, multicore PC and Mac laptop and desktop computers became commonplace. In 2014, IBM's POWER8 CPU was introduced with up to 12 cores, and Intel introduced an 18-core Xeon chip. Other companies have developed CPUs for multimedia and scientific processing with dozens of cores. See SMP, dual core, triple core, quad core, octa-core, multithreading, multiprocessing and Cell chip.

Eight-Core POWER Chip
In 2010, IBM debuted its POWER7 generation with up to eight cores. Providing four threads per core, a 32-chip POWER7 computer can process 1,024 simultaneous instruction streams. (Image courtesy of IBM.)

Seventy-Two Cores
EZchip's Gx8072 system-on-chip (SoC) has 24 lanes of PCI Express and up to 100 Gbps of Ethernet I/O. (Image courtesy of EZchip Semiconductor Corporation,
References in periodicals archive ?
announced the BuiltSAFE GS Multi-Core Renderer for the Xilinx Zynq UltraScale+ MPSoC family.
Accelerate Multi-Core Fiber Application using Current Standard Technology
As if multi-core CPUs were not fast enough, researchers from the Massachusetts Institute of Technology (MIT) have a developed a way to make them even faster.
Both the Retina iPad mini and iPad Air pack similar hardware configuration including the same A7 processor and M7 motion coprocessor, which justifies the fact that they deliver nearly identical performance in Geekbench 3 single-core and multi-core processor benchmarks.
com)-- ITTIA, a leader in modern embedded and mobile database software, equips applications with safe and efficient storage on single-core and multi-core systems.
Researchers from North Carolina State University have developed two new techniques to help maximize the performance of multi-core computer chips by allowing them to retrieve data more efficiently, which boosts chip performance by 10 to 40 per cent.
TELECOMWORLDWIRE-March 25, 2011-One Access to collaborate with Freescale Semiconductor to deliver new generation of multi-core processing platforms(C)1994-2011 M2 COMMUNICATIONS http://www.
Summary: Iskratel's New SI3000 Signaling and Media Gateway Employs the Vocallo Multi-Core DSP Platform for High Capacity, Low Latency Audio Transcoding
of Crete, Greece) compiles 12 chapters on topics related to multi-core embedded systems, and the technical challenges associated with the integration of processors and multiple cores.
Intel Software and Solutions Group, Intel Corporation's software division, recently announced a new on-line software developer community dedicated to manageability issues, complementing the developer communities for mobile computing and Multi-Core.
a supplier of high performance, System-on-a-Chip (SoC) based computing systems, has unveiled a new class of semiconductor devices called Field Programmable Multi-core Chips (FPMCs).
Nasdaq: BEAS) has announced it is supporting the Intel roadmap for multi-core server platforms and that BEA is eliminating any premium pricing for dual core processors for its entire software product portfolio.

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