cpu
- Created by: official-rxhel
- Created on: 13-11-20 13:05
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- Control Unit
- CPU
- Buses
- Definition: a series of connectors that transfer signals between internal components?
- Address
- transmit the memory addresses specifying where data is to be sent to or
retrieved from
- one directional
- transmit the memory addresses specifying where data is to be sent to or
retrieved from
- Data
- transporting data and instructions between components
- bi-directional
- transmit control signals between internal and external components
- bi-directional
- transporting data and instructions between components
- Control
- transmit control signals between internal and external components
- Memory read
- memory write
- bus grant
- clock
- bus request
- Registers
- Definition: are small amounts of high-speed memory and controls the fetch, decodee and execute cyle
- Memory Address Register (MAR)
- holds the address in memory where the processor is required to fetch or store data from or to?
- Program counter (PC)
- holds the memory address of the next instruction to be executed
- Current Instruction Register (CIR)
- Arithmetic-Logic Unit
- Definition: The problem-solving part of the processor
- Arithmetic + - x /
- Logical : AND OR NOT XOR
- Shift: moving bits to the left/right within a register
- results are then stored in the accumulator (register)
- Buses
- Definition: The part of the processor that coordinates the activity of all other components.
- It fetches, decodes and executes instruction
- Control signals are sent along the control bus between the control unit and the other components of the computer
- CPU
- Memory Data Register (MDR)
- temporarily holds data moving between the processor and main memory?
- Registers
- Definition: are small amounts of high-speed memory and controls the fetch, decodee and execute cyle
- Memory Address Register (MAR)
- holds the address in memory where the processor is required to fetch or store data from or to?
- Program counter (PC)
- holds the memory address of the next instruction to be executed
- Current Instruction Register (CIR)
- holds the results of calculations
- Accumulator
- Accumulator
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