1 J277 1.1 Purpose of the CPU

What is a computer defined as?

• A device that only outputs data

• A device that only processes data

• An electronic device that takes an input, processes data, and delivers output

• A device that only takes input

What are the two critical components of a typical desktop computer mentioned in the text?

• Monitor and keyboard

• Memory and central processing unit

• Hard drive and mouse

• Speaker and controller

What is the first step in the fetch-decode-execute cycle?

• Decode

• Execute

• Fetch

• Store

What does the CPU do during the fetch cycle?

• Executes the instruction

• Fetches the next instruction from the computer's main memory

• Decodes the instruction

• Outputs the data

What is the term used to describe the speed at which the fetch-execute cycle occurs?

• Byte rate

• Clock speed

• Data rate

• Instruction speed

What is the primary function of a computer?

• To take input, process data, and deliver output

• To store data permanently

• To connect to the internet

• To play games

What is the main purpose of the CPU in a computer?

• To fetch, decode, and execute instructions

• To store data

• To display output

• To provide power to the computer

How does the CPU fetch instructions?

• By downloading them from the internet

• By fetching them from the main memory

• By generating them internally

• By receiving them from the user

What does the CPU do after fetching the instruction from the main memory?

• It inspects the instruction and works out what needs to be done

• It stores the instruction

• It deletes the instruction

• It sends the instruction to the printer

What performs the Fetch-Decode-Execute cycle?

• Computer

• Processor

• Box

• Decoder