System architecture OCR

Teams > paper 1 system architecture >
System architecture >
Do now

Open Ended

An example of an input might be...

Open Ended

An example of a process might be....

Open Ended

an example of an output might be...

​https://www.bbc.co.uk/bitesize/guides/zbfny4j/video

Multiple Choice

The CPU is:

• Control processing unit

• Centralised process unit

• Central process unified

• Central processing unit

Multiple Choice

The processor…

• Carries out instructions

• Is main memory

• Is secondary storage

• Is an input device

Multiple Choice

The Processor doesn’t do the following

• Process data

• Execute instructions

• Execute data

• Operate in Hz

Multiple Choice

What is held in cache?

• All the programming instructions

• Commonly used instructions and data

• Instructions that have been processed

• Data that hasn’t been used for a long time

Multiple Choice

This would perform an operation such as 5+8 ?

• Arithmetic Logic Unit

• Accumulator

• Cache

• Control Unit

Multiple Choice

This holds the number of the current instruction being worked on

• Memory Address Register

• Program Counter

• Memory Data Register

• Accumulator

Multiple Choice

What is the purpose of the accumulator?

• To hold the results of a calculation

• To hold the accumulation of instructions that are about to happen

• To hold the accumulation of instructions that have happened

• To perform arithmetic operations

Multiple Choice

This holds the memory location of the current instruction being worked on

• Memory Address Register

• Program Counter

• Memory Data Register

• Accumulator

Multiple Choice

What component holds the address of the next instruction

• Memory Data Register

• Accumulator

• Memory Address Register

• Program Counter

Multiple Select

What is the purpose of the ALU?

• To carry out arithmetic operations

• To carry out logical operations

• To carry out addition operations

• To move data between the CPU and accumulator

Multiple Choice

What is the purpose of the Control Unit (CU)?

• Controls the flow of data around the CPU and to and from other components

• Controls the actions carries our by the CPU and other components

• Controls the input and output devices that are attached to the computer

• Controls the timings of the CPU and limits and increases it's frequencies when needed