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A central processing unit (CPU), also called a central processor, main processor, or just processor, is the most important processor in a given computer. [1] [2] Its electronic circuitry executes instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations.
CAT—Computer-Aided Translation; CAQ—Computer-Aided Quality Assurance; CASE—Computer-Aided Software Engineering; cc—C Compiler; CC—Carbon Copy; CD—Compact Disc; CDE—Common Desktop Environment; CDMA—Code-Division Multiple Access; CDN—Content Delivery Network; CDP—Cisco Discovery Protocol; CDP—Continuous Data Protection; CD-R ...
CPU time (or process time) is the amount of time that a central processing unit (CPU) was used for processing instructions of a computer program or operating system. CPU time is measured in clock ticks or seconds. Sometimes it is useful to convert CPU time into a percentage of the CPU capacity, giving the CPU usage.
On the 360/65, on S/370 models without DAT and when running with translation turned off, there are only a flat real address space and a flat absolute address space. On the 360/67, S/370 and successors through S/390, when running with translation on, addresses contain a segment number, a page number and an offset. Although early models supported ...
In computing and computer science, a processor or processing unit is an electrical component (digital circuit) that performs operations on an external data source, usually memory or some other data stream. [1]
A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. [1] A cache is a smaller, faster memory, located closer to a processor core , which stores copies of the data from frequently used main memory locations .
The XSAVE instruction set extensions are designed to save/restore CPU extended state (typically for the purpose of context switching) in a manner that can be extended to cover new instruction set extensions without the OS context-switching code needing to understand the specifics of the new extensions.
Haswell is the codename for a processor microarchitecture developed by Intel as the "fourth-generation core" successor to the Ivy Bridge (which is a die shrink/tick of the Sandy Bridge microarchitecture). [1]