Understanding the Fetch-Execute Cycle

This video is the first in a series exploring computer systems, focusing on the fetch-execute cycle. It explains how computers take input, process data, and deliver output, using examples like a game console. The video details the roles of memory and the CPU, and describes the fetch-execute cycle, where the CPU fetches, decodes, and executes instructions. The cycle's speed is measured in hertz. The video concludes with a recap of these concepts.

What is the primary focus of this video series?

• The fetch-execute cycle

• Software development

• The history of computers

• Networking protocols

Which of the following is NOT a basic function of a computer?

• Taking input

• Processing data

• Generating electricity

• Delivering output

In the game console example, what is considered the input?

• The buttons on the controller

• The console itself

• The speaker

• The monitor

What are the two critical components inside a typical desktop computer?

• Hard drive and monitor

• Keyboard and mouse

• Memory and CPU

• Power supply and case

What is the purpose of the CPU in a computer?

• To store data

• To fetch, decode, and execute instructions

• To display images

• To provide power

During the fetch cycle, where does the CPU get the next instruction from?

• The main memory (RAM)

• The hard drive

• The monitor

• The keyboard

What does the CPU do after fetching an instruction?

• Deletes it

• Stores it in the hard drive

• Decodes it

• Sends it to the monitor

What might the CPU need to do during the execution of an instruction?

• Send an email

• Print a document

• Turn off the computer

• Fetch more data from main memory

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

• Processing power

• Memory speed

• Clock speed

• Data rate

How is clock speed measured?

• In bytes

• In pixels

• In hertz

• In watts