How components work together

Name:

Date:

Class:

Quick Questions

Shade in the A or B circle for each question.

1. A student clicks the mouse to open a folder. Which order is correct?

A The screen shows the folder first, then the CPU processes the click, then the mouse sends it

B Mouse (input) sends the click, the operating system and CPU process it, the screen (output) shows the folder

2. When you click a mouse, what does the operating system do?

A It turns the click into electricity inside the mouse

B It receives the click signal and tells the CPU and the right application what to do

3. Which statement is true about completing one user action?

A Hardware and software must both work together in a sequence

B Hardware can finish the action alone without any software

4. A student saves a homework file. Where does the data end up?

A The CPU processes the save command and the data is written to a storage device

B The data is saved only in the monitor so it can be seen later

5. While you are typing a document, where is it held before you save it?

A In memory (RAM), which the CPU can access quickly

B In the keyboard, until the save button is pressed

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1mouse click → OS → CPU → screen		AThis skips the operating system and CPU, but the click signal must be interpreted and processed before the screen can change.
2Save: app → OS → CPU → storage		BThe app asks the operating system to save, the CPU processes the request and the file is written to storage
3Input hardware starts the sequence when a user acts, and software then handles the signal		CThe input device sends a signal, the operating system passes it on, the CPU processes it and the screen shows the result
4If one component is missing, the sequence breaks and the action cannot be finished		DThis skips the operating system, which manages the request and the storage device, so the app cannot save a file on its own.
5mouse click → screen (no OS or CPU)		Eno storage → file cannot be saved
6Save: app → storage (no OS)		Fclick → driver → OS → app

Definitions

components work together

Fill in the Blanks

Complete each line of code by filling in the missing parts.

Mouse -> OS -> ___ -> Screen

Save file: OS -> CPU -> _______

No ______ device = cannot see the result

No __: the mouse click is not understood

Click Save (input device) OS and CPU _______ the request File is written to storage

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A Mouse detects a click

B Mouse signals the OS

C OS asks the RAM to process it

D Screen shows the new result

Question 2

A User clicks Save

B Keyboard sends the command

C OS finds the file data in RAM

D OS writes data to the monitor

E Screen shows a Saved message

Question 3

A No mouse is plugged in

B The click is never detected

C So the OS still gets a signal

D Nothing happens on the screen

Question 4

A Keyboard sends the typed key

B OS passes it to the speaker

C Screen displays the letter

Question 5

A Press Save on the document

B OS needs no storage to save

C Without a drive, save fails

Answer Key

How components work together

Section A: Quick Questions

B — Mouse (input) sends the click, the operating system and CPU process it, the screen (output) shows the folder

B — It receives the click signal and tells the CPU and the right application what to do

A — Hardware and software must both work together in a sequence

A — The CPU processes the save command and the data is written to a storage device

A — In memory (RAM), which the CPU can access quickly

Section B: Match the Pairs

mouse click → OS → CPU → screen → The input device sends a signal, the operating system passes it on, the CPU processes it and the screen shows the result

Save: app → OS → CPU → storage → The app asks the operating system to save, the CPU processes the request and the file is written to storage

Input hardware starts the sequence when a user acts, and software then handles the signal → click → driver → OS → app

If one component is missing, the sequence breaks and the action cannot be finished → no storage → file cannot be saved

mouse click → screen (no OS or CPU) → This skips the operating system and CPU, but the click signal must be interpreted and processed before the screen can change.

Save: app → storage (no OS) → This skips the operating system, which manages the request and the storage device, so the app cannot save a file on its own.

Section C: Definitions

components work together — Hardware and software cooperate in a sequence, such as input device, operating system, CPU, then output, to finish one user action like a mouse click or saving a file.

Section D: Fill in the Blanks

Mouse -> OS -> CPU -> Screen

Save file: OS -> CPU -> storage

No output device = cannot see the result

No OS: the mouse click is not understood

Click Save (input device)
OS and CPU process the request
File is written to storage

Section E: Spot the Error

C — The CPU processes instructions. RAM only holds data temporarily. The line should be: OS asks the CPU to process it.

D — A monitor is an output device, not storage. Saving writes the data to a storage device, so it should be: OS writes data to the SSD.

C — If the mouse is missing, no click is detected, so the OS never receives a signal. It should be: So the OS never gets a signal.

B — The OS passes the input to the CPU to be processed, not to a speaker. It should be: OS passes it to the CPU.

B — Saving a file needs a storage device to keep the data. That is why the save fails without a drive. It should be: OS needs storage to save it.