CPU

What is the main function of the CPU?

• To carry out processing of the data.
• To help with playing games.
• To fetch instructions from memory, decode them and execute the instructions.
• To heat up the computer.

Why is there a need for secondary storage in a computer?

• To store files for a long period of time, such as the operating system
• To hold cd's and dvd's

Where does the computer store data and instructions that are currently in use?

• Read-only memory

• Secondary storage

• The CPU

• Random access memory

Is a robotic arm....

• An Embedded System?

• General Purpose System?

• Not a system?

Is a hoover....

• An Embedded System?

• General Purpose System?

• Not a system?

Is a laptop....

• An Embedded System?

• General Purpose System?

• Not a system?

Is a smoke alarm....

• An Embedded System?

• General Purpose System?

• Not a system?

Is a tablet....

• An Embedded System?

• General Purpose System?

• Not a system?

What happens at the Decode step of the fetch-decode-execute cycle?

• The CPU makes sense of the instructions.
• The CPU fetches the information from RAM.
• The instructions are executed.

As soon as the computer is switches on the CPU begins processing data

• true
• FALSE