Main memory

In this lesson, you will be introduced to main memory, RAM and ROM, as well as cache. This lesson builds on the core knowledge from the previous lesson about CPU components.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.During the fetch stage of the FDE cycle, where are the instructions fetched from?

1/5

Q2.What does a processor need to do to a binary instruction after it is fetched?

2/5

Q3.During the execute stage, which CPU component tells the other components what to do?

3/5

Q4.At which stage are results stored in the Accumulator?

4/5

Q5.What does the program counter do during the fetch stage?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.During the fetch stage of the FDE cycle, where are the instructions fetched from?

1/5

Q2.What does a processor need to do to a binary instruction after it is fetched?

2/5

Q3.During the execute stage, which CPU component tells the other components what to do?

3/5

Q4.At which stage are results stored in the Accumulator?

4/5

Q5.What does the program counter do during the fetch stage?

5/5

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

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Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Main memory

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Which of the following are characteristics of RAM? (Select all that apply)

Select two (2) boxes

1/5

Q2.What is usually stored on the ROM inside your computer?

2/5

Q3.What impact does larger RAM have on the operation of a computer?

3/5

Q4.How many levels of cache are typically in a computer system?

4/5

Q5.What feature of cache allows it to improve the performance of a computer?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Main memory

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Which of the following are characteristics of RAM? (Select all that apply)

Select two (2) boxes

1/5

Q2.What is usually stored on the ROM inside your computer?

2/5

Q3.What impact does larger RAM have on the operation of a computer?

3/5

Q4.How many levels of cache are typically in a computer system?

4/5

Q5.What feature of cache allows it to improve the performance of a computer?

5/5

Lesson summary: Main memory

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