Main memory

In this lesson, we 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.

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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!

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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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!

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

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Worksheet

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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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Main memory

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

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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Main memory

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

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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Time to move!

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For 5 mins...

Move around:
Jog

On the spot:
Chair yoga

The next lesson in:
Computer Systems
is:
Secondary storage

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