Created by Jonathan Wakefield
over 7 years ago
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Question | Answer |
MAR | Memory Address Register - Used to hold the address of the data in memory |
MDR | Memory Data Register - Used to hold the data retrieved from memory or data to be sent to memory |
PC | Program Counter - Holds memory address of the next instruction. Indicates where computer is in programme sequence. |
Acc | Accumulator - Register in which results from arithmetic and logic are stored. |
CIR | Current Instruction Register - Holds current instruction to be executed having been fetched from memory. Stores operator and operand for current instruction |
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