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13 cards from this deck
Arithmetic (e.g., +, -) & logic (e.g., AND, OR)
Execute phase
Directs & coordinates CPU activities via control signals
Instructions
Small, fast storage locations within CPU
Memory address of next instruction to execute
Data being processed by ALU & intermediate results
Memory address of data/instruction being fetched or stored
Data being transferred to/from memory
Current instruction being executed
Bidirectional; carries actual data between CPU & memory
Unidirectional; carries addresses from CPU to memory
Carries control signals from CU to coordinate CPU activities
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