1 OCR GCSE Computer Science - System Architecture

Which of the following is not a characteristic of a CPU?

• Central
• Numbe of cores
• Cache
• Clock Speed

Which of the following best defines clock speed?

• Used to count the number of instructions.
• The number of instructions stored in memory.
• The number of cycles performed in a second.
• Used perform mathematical calculations.

3 GHz means approximately how many instructions per second?

• 0.3 million instructions
• 3 million instructions
• 0.3 billion instructions
• 3 billion instructions

Increasing the clock speed could mean?

• You can store more data in your computer.
• You can store more instructions in your computer.
• The software can respond faster.
• More storage in the cache memory.

Increasing the clock speed could mean?

• Allows more instructions to run per second.
• You can store more instructions in your computer.
• The cache memory will increase as well.
• More storage in the cache memory.

A multi-core processor is?

• Two or more cache units inside a CPU.
• Multiple clock speed CPU
• Two or more processors inside a CPU.
• Multiple counter systems inside the CPU.

More cores mean?

• It will double in speed.
• The computer will run twice as fast in a dual core.
• The speed of the computer will definitely increase.
• Separate cores can work on 2 or more tasks at the same time

Cache for a CPU is?

• Temporary data used to store data for websites.
• Super fast memory located on main memory.
• Super fast memory located in or nearby the processor.
• Temporary data used to store data used in apps.

What did Von Neumann proposed?

• That a CPU must have a clock speed.
• Data is permanently saved to cache memory.
• Data and Instructions are stored permanently in main memory.
• Data and Instructions are stored in main memory together.

Which of the following is not a physical component inside the CPU?

• Arithmetic Logic Unit
• Control Unit
• Cache
• Clock Speed