Key Components in a computer syste

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The Control Unit (CU)
--- executes program instructions by following the fetch-decode-execute cycle --- (also controls flow of data in and out if CPU)
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Arithmetic Logic Unit (ALU)
--- does all the calculations --- performs logic operations and binary shifts --- contains accumulator register
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The Cache
--- fast memory; stores frequently used data ---very low capacity and expensive compared to RAM --- different levels of cache, L1 which is fastest with the lowest capacity to L3
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CPU
CENTRAL PROCESSING UNIT
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MAR
MEMORY ADDRESS REGISTER
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Other cards in this set

Card 2

Front

--- does all the calculations --- performs logic operations and binary shifts --- contains accumulator register

Back

Arithmetic Logic Unit (ALU)

Card 3

Front

--- fast memory; stores frequently used data ---very low capacity and expensive compared to RAM --- different levels of cache, L1 which is fastest with the lowest capacity to L3

Back

Preview of the back of card 3

Card 4

Front

CENTRAL PROCESSING UNIT

Back

Preview of the back of card 4

Card 5

Front

MEMORY ADDRESS REGISTER

Back

Preview of the back of card 5

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