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In electronics, computer science and computer engineering, microarchitecture, also called computer organization and sometimes abbreviated as μarch or uarch, is the way a given instruction set architecture (ISA) is implemented in a particular processor. [ 1 ] A given ISA may be implemented with different microarchitectures; [ 2 ][ 3 ...
In computer science and computer engineering, computer architecture is a description of the structure of a computer system made from component parts. [1] It can sometimes be a high-level description that ignores details of the implementation. [2] At a more detailed level, the description may include the instruction set architecture design ...
Flynn's taxonomy is a classification of computer architectures, proposed by Michael J. Flynn in 1966 [ 1 ] and extended in 1972. [ 2 ] The classification system has stuck, and it has been used as a tool in the design of modern processors and their functionalities. Since the rise of multiprocessing central processing units (CPUs), a ...
In computer architecture, Amdahl's law(or Amdahl's argument[1]) is a formula which gives the theoretical speedupin latencyof the execution of a task at fixed workloadthat can be expected of a system whose resources are improved. The law can be stated as:
von Neumann architecture. The von Neumann architecture —also known as the von Neumann model or Princeton architecture —is a computer architecture based on a 1945 description by John von Neumann, and by others, in the First Draft of a Report on the EDVAC. [ 1 ] The document describes a design architecture for an electronic digital computer ...
Multiprocessor system architecture. A multiprocessor system is defined as "a system with more than one processor", and, more precisely, "a number of central processing units linked together to enable parallel processing to take place". [1][2][3] The key objective of a multiprocessor is to boost a system's execution speed.
A mainframe computer, informally called a mainframe or big iron, [ 1 ] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.
The notion of a three-schema model was first introduced in 1975 by the ANSI/X3/SPARC three level architecture, which determined three levels to model data. [1]The three-schema approach, or three-schema concept, in software engineering is an approach to building information systems and systems information management that originated in the 1970s.