1.1 Systems Architecture (GCSE Computer Science)

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

A typical processor speed in 2016 was...

• 16Hz

• 100MHz

• 4GHz

• 300GHz

Which of these does not affect CPU performance?

• Clock Speed

• Number of Cores

• Cache Size

• Number of Instructions in a Program

If the number of cores goes from dual-core to quad-core, what effect does this have 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 halves

If the processing speed goes from 1GHz to 4GHz, what effect does this have on performance?

• 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 halves

• The maximum number of instructions executed per second quarters

If the processing speed goes from 2GHz to 4GHz, and we go from dual-core to quad-core, what effect does this have on performance?

• 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 halves

• The maximum number of instructions executed per second quarters

Processors can't...

• Process data

• Execute instructions

• Execute data

• Operate in Hz

The part of the processor where instructions are executed is known as the...

• Core

• Centre

• Execution

• Instruction Centre

What acts as an intermediary between the processor and main memory?

• Bus

• User

• Cache

• Clock