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A central processing unit (CPU), also referred to as a central processor unit, is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system. The term has been in use in the computer industry at least since the early 1960s.The form, design, and implementation of CPUs have changed over the course of their history, but their fundamental operation remains much the same. A computer can have more than one CPU; this is called multiprocessing. All modern CPUs are microprocessors, meaning contained on a single chip. Some integrated circuits (ICs) can contain multiple CPUs on a single chip; those ICs are called multi-core processors. An IC containing a CPU can also contain peripheral devices, and other components of a computer system; this is called a system on a chip (SoC).Two typical components of a CPU are the arithmetic logic unit (ALU), which performs arithmetic and logical operations, and the control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary. Not all computational systems rely on a central processing unit. An array processor or vector processor has multiple parallel computing elements, with no one unit considered the “center”. In the distributed computing model, problems are solved by a distributed interconnected set of processors.
Abdulraqeb Alnabihi. 2015. "Design of a Five Stage Pipeline CPU with Interruption System". Global Journal of Computer Science and Technology - A: Hardware & Computation GJCST-A Volume 15 (GJCST Volume 15 Issue A2).
Crossref Journal DOI 10.17406/gjcst
Print ISSN 0975-4350
e-ISSN 0975-4172
v1.2
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Total Score: 172
Country: China
Subject: Global Journal of Computer Science and Technology
Authors: Abdulraqeb Abdullah Saeed Abdo, Liu Yijun (PhD/Dr. count: 0)
View Count (all-time): 455
Total Views (Real + Logic): 1851
Total Downloads (simulated): 161
Publish Date: 2015 01, Thu
Monthly Totals (Real + Logic):
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