1.1 System Architecture

Processors have a speed measured in...?

• Hertz
• Bits
• Bytes
• Seconds

Data and Instructions in use are stored in the:

• Processor
• Embedded System
• Hard Disk Drive
• Main Memory

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

What is held in cache?

• All of the programming instructions
• Commonly used instructions and data
• Instructions that have been processed
• Data that hasn’t been used for a long time

What does CPU stand for?

• Central Processing Unit
• Computer Protocol User
• Cool Pokemon Unit
• Computer Processing Unit

Bob has a 1GHZ dual core CPU, Amy has a 2GHZ single core CPU. Which can process more instructions per second?

• Bob
• Amy
• Equal
• Neither can process anything

Which of the following has the largest memory?

• RAM

• Cache

Which of the following is the fastest memory?

• RAM

• Cache

Where are the results of calculations stored?

• Accumulator
• ALU
• MDR
• CIR

Which component would calculate the result of 6 * 4?

• Accumulator
• ALU
• Control Unit
• MAR