Output devices (monitor, printer, speaker) in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the word 'Hello' on the screen using the output device.

Intro to Computing

print([1])

Drag options to blanks, or click blank then click option'

A'Hello'

BHello

Cprint

Dscreen

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the text.

Trying to print without using the print function.

The print() function outputs text to the monitor, which is an output device. The text must be in quotes to be recognized as a string.

2fill in blank

medium

Complete the sentence to name an output device that produces sound.

Intro to Computing

An output device that produces sound is a [1].

Drag options to blanks, or click blank then click option'

Amonitor

Bprinter

Cspeaker

Dkeyboard

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing keyboard which is an input device.

Confusing monitor with speaker.

A speaker is an output device that plays sound. Monitors and printers show images or text, keyboards are input devices.

3fill in blank

hard

Fix the error in the sentence describing an output device.

Intro to Computing

A [1] is used to print documents on paper.

Drag options to blanks, or click blank then click option'

Amouse

Bscanner

Cmonitor

Dprinter

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing scanner which is an input device.

Confusing monitor with printer.

A printer is the output device that prints documents on paper. Scanners and mice are input devices, monitors display images.

4fill in blank

hard

Fill both blanks to complete the dictionary that maps output devices to their function.

Intro to Computing

output_functions = { [1]: 'produces sound', [2]: 'displays images' }

Drag options to blanks, or click blank then click option'

A'speaker'

B'printer'

C'monitor'

D'keyboard'

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing input devices like keyboard in output dictionary.

Swapping printer and monitor functions.

The 'speaker' produces sound and the 'monitor' displays images. Printers print on paper and keyboards are input devices.

5fill in blank

hard

Fill all three blanks to create a list of output devices including a monitor, printer, and speaker.

Intro to Computing

output_devices = [[1], [2], [3]]

Drag options to blanks, or click blank then click option'

A'monitor'

B'printer'

C'speaker'

D'mouse'

Attempts:

3 left

💡 Hint

Common Mistakes

Including input devices like mouse in the output devices list.

Forgetting to put quotes around device names.

The list includes 'monitor', 'printer', and 'speaker', all output devices. The mouse is an input device and should not be included.

Practice

1. Which of the following is an output device that displays images and text on a screen?

easy

A. Mouse

B. Keyboard

C. Scanner

D. Monitor

Solution

1. Step 1: Understand the function of each device

   A monitor shows images and text, a keyboard and mouse are input devices, and a scanner inputs images.

2. Step 2: Identify the output device for display

   The monitor is the device that outputs visual information to the user.

3. Visual Aid & Analogy:

   Output Type	Device	Real-World Analogy
   Display	Monitor	TV or movie screen
   Hardcopy	Printer	Copy machine
   Audio	Speaker	Home stereo speakers

   This table shows how output devices deliver information to users in different sensory ways.

4. Final Answer:

   Monitor -> Option D

5. Quick Check:

   Display device = Monitor [OK]

Hint: Monitors show visuals; keyboards and mice take input [OK]

Common Mistakes:

• Confusing input devices with output devices
• Thinking a keyboard displays output
• Mixing scanner with printer

2. Which of the following is the correct description of a printer?

easy

A. An output device that produces paper copies

B. An input device that scans documents

C. An output device that plays sound

D. An input device that types text

Solution

1. Step 1: Identify printer's role

   A printer creates physical paper copies from digital data, so it outputs information.

2. Step 2: Match description to printer

   An output device that produces paper copies correctly states it is an output device producing paper copies.

3. Visual Aid & Analogy:

   Output Type	Device	Real-World Analogy
   Display	Monitor	TV or movie screen
   Hardcopy	Printer	Copy machine
   Audio	Speaker	Home stereo speakers

   This table shows how output devices deliver information to users in different sensory ways.

4. Final Answer:

   An output device that produces paper copies -> Option A

5. Quick Check:

   Printer = Paper output device [OK]

Hint: Printers output paper, not input data [OK]

Common Mistakes:

• Confusing printer with scanner
• Thinking printer inputs data
• Mixing printer with speaker

3. What output device would you use if you want to hear music from your computer?

medium

A. Monitor

B. Printer

C. Speaker

D. Keyboard

Solution

1. Step 1: Identify device that outputs sound

   Monitors show images, printers print paper, keyboards input data, speakers output sound.

2. Step 2: Choose device for music output

   Speakers convert digital audio signals into sound waves we can hear.

3. Visual Aid & Analogy:

   Output Type	Device	Real-World Analogy
   Display	Monitor	TV or movie screen
   Hardcopy	Printer	Copy machine
   Audio	Speaker	Home stereo speakers

   This table shows how output devices deliver information to users in different sensory ways.

4. Final Answer:

   Speaker -> Option C

5. Quick Check:

   Sound output device = Speaker [OK]

Hint: Speakers play sound; monitors and printers do not [OK]

Common Mistakes:

• Choosing monitor or printer for sound
• Confusing input devices with output
• Not knowing speakers output audio

4. A user complains that their computer is not producing any sound. Which output device should they check first?

medium

A. Monitor

B. Speaker

C. Mouse

D. Printer

Solution

1. Step 1: Identify output device for sound

   Speakers are responsible for producing sound output from a computer.

2. Step 2: Determine device to check for sound issues

   If no sound is heard, checking the speakers (or headphones) is the first step.

3. Visual Aid & Analogy:

   Output Type	Device	Real-World Analogy
   Display	Monitor	TV or movie screen
   Hardcopy	Printer	Copy machine
   Audio	Speaker	Home stereo speakers

   This table shows how output devices deliver information to users in different sensory ways.

4. Final Answer:

   Speaker -> Option B

5. Quick Check:

   Sound problem? Check speakers first [OK]

Hint: No sound? Check speakers, not monitor or printer [OK]

Common Mistakes:

• Checking monitor for sound
• Confusing mouse with output device
• Ignoring speaker connections

5. A company wants to set up a workstation where employees can see reports on screen, print copies, and listen to audio alerts. Which combination of output devices should they install?

hard

A. Monitor, Printer, Speaker

B. Keyboard, Printer, Speaker

C. Monitor, Scanner, Speaker

D. Monitor, Printer, Microphone

Solution

1. Step 1: Identify devices for each output need

   Reports on screen need a monitor, printed copies need a printer, audio alerts need speakers.

2. Step 2: Match devices to options

   Monitor, Printer, Speaker includes monitor, printer, and speaker, covering all output needs.

3. Step 3: Exclude incorrect devices

   Keyboard and microphone are input devices; scanner is input device, so options B, C, and D are incorrect.

4. Visual Aid & Analogy:

   Output Type	Device	Real-World Analogy
   Display	Monitor	TV or movie screen
   Hardcopy	Printer	Copy machine
   Audio	Speaker	Home stereo speakers

   This table shows how output devices deliver information to users in different sensory ways.

5. Final Answer:

   Monitor, Printer, Speaker -> Option A

6. Quick Check:

   Screen + print + sound = Monitor, Printer, Speaker [OK]

Hint: Screen, print, sound = monitor, printer, speaker [OK]

Common Mistakes:

• Including input devices like keyboard or microphone
• Confusing scanner with printer
• Missing speaker for audio alerts