1-5 Systems Architecture

Data and Instructions in use are stored in the:

• Processor
• Embedded System
• Hard Disk Drive
• Main Memory (RAM)

Processors have a speed measured in

• Hertz
• Bits
• Bytes
• Seconds

What does not affect the performance of the computer?

• Clock Speed
• Number of Cores
• Cache Size
• The number of instructions in the program

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

If the processing speed goes up from 1GHZ to 4GHZ – what is the exact effect on the performance of the computer?

• 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
• The maximum number of instructions executed per second is quartered

Which is an example of an Embedded System

• Laptops
• Tablets
• PCs
• Washing Machine

The part of a processor in which instructions are executed is known as?

• Core
• Centre
• Execution
• Instruction Centre

What acts as an intermediary between the processor and the Main Memory (RAM)?

• Bus
• User
• Cache
• Clock

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

Firmware refers to

• Any hardware that can’t easily break
• A combination of hardware and software
• A type of software that is updated to make a computer work better
• Hardware used in kitchens