1.1 System Architecture - Pre Test Quiz

What is an embedded system?

• A computer which resides within a larger system or device

• A computer which helps a larger computer

• A computer which can be embedded within your body

• A computer small which can run on batteries

Which of the following are embedded systems?

• Laptop

• Thermostat

• Television

• MP3 player

• Smartphone

Embedded systems are...

• Cheaper to produce

• Easier to manufacture

• More powerful than general purpose computers

• Require a lot of storage

• Can only run on batteries

Embedded systems are...

• Good at carrying out multiple tasks

• Specialised at doing one task

• Are less likely to malfunction

• Use less energy than general purpose computers

• Are easier to repair

What is the purpose of the CPU

• Process data

• Input data

• Delete data

• Output data

What is the purpose of the Control Unit (CU)?

• Controls the flow of data around the CPU and to and from other components

• Controls the actions carries our by the CPU and other components

• Controls the input and output devices that are attached to the computer

• Controls the timings of the CPU and limits and increases it's frequencies when needed

What is the purpose of the ALU?

• To carry out arithmetic operations

• To carry out logical operations

• To carry out addition operations

• To move data between the CPU and accumulator

A register...

• Is a specialist type of cache which is large in capacity and very fast

• Is a specialist type of memory which is small in capacity and very fast

• Is a specialist type of CPU specifically used for counting

• Is a specialist type of CPU used in smaller, low power devices

Which of the following are specialist registers?

• MBR

• CU

• MDR

• PC

• MAR

CPU Cache contains...

• General Data

• Applications

• Frequently used instructions and data

• General instructions