OCR Computer Science 1.1.1

Front

What is held in cache?

Back

Commonly used instructions and data

Front

What component holds the address of the next instruction?

Back

Program Counter

Front

This holds the number of the current instruction being worked on

Back

Memory Address Register

Front

This doesn’t happen during the Decode / Execute part of the cycle: (7-9)

Back

Instructions are transferred from Main Memory

Front

What is the purpose of the accumulator?

Back

To hold the results of a calculation

Front

Cache for a CPU is?

Back

Super fast memory located in or nearby the processor.

Front

What is the main feature of a Von Neumann computer?

Back

Data and Instructions are stored in main memory together.

Front

Which of the following is not a physical component inside the CPU? Arithmetic Logic Unit, Control Unit, Cache, Clock Speed

Back

Clock Speed

Front

Is this a valid example of the Input-Process-Output Model?
Input: Scanning picture.
Process: Editing the picture.
Output: Printed poster with picture.

Back

Yes.

Front

Data and Instructions in use are stored in the: Processor, Embedded System, Hard Disk Drive, Main Memory

Back

Main Memory