11668059
Description
Mind Map by Hasnat Mohammed, updated more than 1 year ago
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Created by Hasnat Mohammed
over 6 years ago
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Registers
- MAR
- Holds the memory location of the data that needs to be accessed.
- It can hold either a data address or an instruction address.
- It can hold either a data address or an instruction address.
- Holds the memory location of the data that needs to be accessed.
- ACC
- This is where arithmetic and logic calculations are stored.
- This is where arithmetic and logic calculations are stored.
- MDR
- Holds contents of the memory which is to be transferred.
- Holds contents of the memory which is to be transferred.
- CU
- Tells the computer how to respond to the program's instruction.
- Tells the computer how to respond to the program's instruction.
- CIR
- Holds the current instruction to be executed, having being fetched from the memory.
- Holds the current instruction to be executed, having being fetched from the memory.
- ALU
- Used to perform arithmetic and logic operations.
- Used to perform arithmetic and logic operations.
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