OCR GCSE CS Systems Architecture MCQ

Processors have a speed measured in

• Hertz

• Bits

• Bytes

• Seconds

Data and Instructions in use are stored in the:

• Processor

• Hard Disk Drive

• Main memory

• Embedded system

Typical processor speed of 2016:

• 300Ghz

• 4Ghz

• 16Ghz

• 100Ghz

What doesn’t affect the performance of the computer

• Clock speed

• Number of cores

• Number of instructions

• Cache

If the number of cores goes up from 2 to 4 – what is the exact effect on

performance?

• Performance decreases

• The maximum number of instructions executed per second doubles

• The maximum number of instructions executed per second quadruples

• The maximum number of instructions executed per second is halved

Firmware in which software and hardware are integrated on a circuit

board is often used in what type of system?

• Desktop System

• Operating System

• Embedded System

• Point of sale System

What is an example of an embedded system?

• Laptop

• Tablet

• Washing Machine

• PC