Plenary • Lesson 2

Under the Hood Quiz

Check your understanding of hardware components and how they work together. Download the results PDF and upload to Showbie.

How it works

Select one answer for each question. Explanations appear after checking.

Plenary Quiz

1. Which component is volatile (loses contents when power is off)?

Explanation: RAM stores programs and data currently in use, but it is volatile.

Source: Slides-23.pptx (memory vs storage).

2. What is the main job of the processor (CPU)?

Explanation: The processor reads and executes instructions in the program.

Source: Slides-23.pptx (processor/CPU).

3. Which components are present in every computing system?

Explanation: All computing systems need a processor, memory, storage, and communication.

Source: Slides-23.pptx (Activity 1 answers).

4. Which of these is an output device?

Explanation: Output devices communicate results to the user; screens are outputs.

Source: Slides-23.pptx (input/output examples).

5. Communication components allow a system to…

Explanation: Communication lets systems send and receive data, even remotely.

Source: Slides-23.pptx (communication components).

One Thing I Learned

Write one key idea you will remember from today’s lesson.