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Computer Architecture
In computer science and computer engineering, computer architecture or digital computer organization is the conceptual design and fundamental operational structure of a computer system. It is a blueprint and functional description of requirements and design implementations for the various parts of a computer, focusing largely on the way by which the central processing unit (CPU) performs internally and accesses addresses in memory.
It may also be defined as the science and art of selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals. Computer architecture comprises at least three main subcategories:[1] Instruction set architecture, or ISA, is the abstract image of a computing system that is seen by a machine language (or assembly language) programmer, including the instruction set, word size, memory address modes, processor registers, and address and data formats. Microarchitecture, also known as Computer organization is a lower level, more concrete and detailed, description of the system that involves how the constituent parts of the system are interconnected and how they interoperate in order to implement the ISA.[2] The size of a computer's cache for instance, is an organizational issue that generally has nothing to do with the ISA. System Design which includes all of the other hardware components within a computing system such as: 1.System interconnects such as computer buses and switches 2.Memory controllers and hierarchies 3.CPU off-load mechanisms such as direct memory access (DMA) 4.Issues like multiprocessing. tell if u like post... |
The Following User Says Thank You to soha rao For This Useful Post: | ||
mobimian (Saturday, July 24, 2010) |
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thanks
hi soha
i really like your post, could you tell something about parallel computing. As far i understood: Computer Architecture deals with 1. ISA (Instruction Set Architecture): which is a firmware and is the mediator (interface) between hardware and software. and 2. CPU design which constitutes: datapaths, pipelines, memory componentsetc. regards |
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