Quad-core
With computer processors, quad-core is a technology that enables four complete processing units (cores) to run in parallel on a single chip. Having this many cores give the user virtually four times as much power in a single chip. For the computer to take full advantage of quad-core, it must be running on an operating system that supports TLP (Thread-Level Parallelism) and for applications to support TLP.
The number of threads a quad-core processor has to process requests differs by the processor. To determine how many threads a particular quad-core processor can handle, check the manufacturer's website for the processor's specifications.
You can think of quad-core as a computer with four central processing units.
Core, CPU, CPU terms, Dual-core, Frequency, Hardware terms, Hyper-threading, Multicore processor, Multithreading, Processor, Thread