7489691
Descrição
Mapa Mental por Brandon Davies, atualizado more than 1 year ago
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Criado por Brandon Davies
aproximadamente 8 anos atrás
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Components of the CPU
- Arithmetic Logic Unit
- thinks what to do with the data, can carry out a plethora of tasks it is the calculator of the CPU
- thinks what to do with the data, can carry out a plethora of tasks it is the calculator of the CPU
- Memory Address
Register
- holds where data has been read or wrote in the
RAM
- holds where data has been read or wrote in the
RAM
- Data Bus
- group of electrical wires which send data to and from the RAM
- group of electrical wires which send data to and from the RAM
- Accumulator
- Stores Data for a bit, while the ALU is being fixed for what it needs
- Stores Data for a bit, while the ALU is being fixed for what it needs
- Program Counter
- it is the part of the CPU that keeps track of where you are in the program.
- Also holds the next address
- Also holds the next address
- it is the part of the CPU that keeps track of where you are in the program.
- Address bus
- sends address to the RAM of the Computer, to be read or written from
- sends address to the RAM of the Computer, to be read or written from
- Control Bus
- Sends info to RAM whether data is to be read or written
- Sends info to RAM whether data is to be read or written
- Memory Data Register
- holds the data that is being moved from RAM or being sent to
RAM
- holds the data that is being moved from RAM or being sent to
RAM
- Clock Speed
- speed at which tasks are
done
- measured in hertz (Hz) cycles per second
- measured in hertz (Hz) cycles per second
- speed at which tasks are
done
- Current Instruction Register
- holds the current instruction when it has been retrieved from
RAM
- holds the current instruction when it has been retrieved from
RAM
- Harvard
Architecture
- allows one cycle to go through two lots of memory, this means it is faster and more efficient.
- allows one cycle to go through two lots of memory, this means it is faster and more efficient.
- Von Neumann Architecture
- holds both instructions and data. it has to send them separately round the CPU
- holds both instructions and data. it has to send them separately round the CPU
- Core
- determines how many tasks can be completed
- Example: quad core 3GHz processor can do 4 x 3 billion tasks per second
- Example: quad core 3GHz processor can do 4 x 3 billion tasks per second
- determines how many tasks can be completed
- Control Unit
- Controls the flow of the CPU, tells it if it is writing or if it is reading
data.
- Controls the flow of the CPU, tells it if it is writing or if it is reading
data.
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