33 Questions
What is the main function of a microphone?
Converting sound waves into electrical signals
How does an optical mouse track movement?
Using a light-emitting diode (LED) and a sensor to detect and track movement on a surface
What is the primary function of a QR code scanner?
Scanning visual representation of data using a camera or specialized device
What is the function of a device that sends an infrared signal to change the channel on a TV?
Sending infrared signal to change the channel on a TV
What is the primary function of a light-sensitive pointing input device commonly used to select or modify text or data on a screen?
Light-sensitive pointing input device commonly used to select or modify text or data on a screen
Which input device uses a light-emitting diode (LED) and a sensor to detect and track movement on a surface?
Optical Mouse
Which input device converts sound waves into electrical signals and is commonly used for voice recording and speech recognition?
Microphone
Which input device is used to scan QR codes containing information that can be quickly read by a smartphone or computer?
QR Code Scanner
Which input device is commonly used to select or modify text or data on a screen and is light-sensitive?
Light-Sensitive Pointing Input Device
Which input device sends an infrared signal to change the channel on a TV?
Infrared Signal Device
Which input device is commonly used to convert sound waves into electrical signals for voice recording and speech recognition?
Microphone
Which input device uses a light-emitting diode (LED) and a sensor to detect and track movement on a surface?
Optical Mouse
Which input device is commonly used to scan QR codes containing information that can be quickly read by a smartphone or computer?
QR Code Scanner
Which input device sends an infrared signal to change the channel on a TV?
Infrared Remote Control
Which input device is commonly used for voice recording, speech recognition, and audio input in multimedia applications?
Microphone
An optical mouse converts sound waves into electrical signals for voice recording and speech recognition.
False
A QR code scanner uses a camera or a specialized device to scan QR codes, which contain information that can be quickly read by a smartphone or computer.
True
A microphone is commonly used as a pointing device for desktop computers and laptops.
False
What is the primary function of a microphone?
Converting sound waves into electrical signals
How does an optical mouse detect and track movement?
It uses a light-emitting diode (LED) and a sensor to detect and track movement on a surface.
What is the main purpose of a QR code scanner?
Scanning visual representation of data
In what way is a microphone commonly used in multimedia applications?
For voice recording, speech recognition, and audio input
What are the typical uses of a QR code scanner?
Advertising, ticketing, and inventory management
An optical mouse uses a light-emitting diode (LED) and a sensor to detect and track ______ on a surface
movement
A handheld device used to record video or take ______
photos
A QR code scanner uses a camera or a specialized device to scan QR codes, which contain information that can be quickly read by a smartphone or ______
computer
Device used to record and send video across the ______
internet
This type of keyboard prevents injuries like ______
RSI
Match the following input devices with their primary uses:
Microphone = Voice recording and speech recognition Optical Mouse = Pointing device for desktop computers and laptops QR Code Scanner = Scanning QR codes for information retrieval Infrared Remote Control = Changing TV channels and controlling electronic devices
Match the following input devices with their descriptions:
Microphone = Converts sound waves into electrical signals Optical Mouse = Uses LED and sensor to detect and track movement on a surface QR Code Scanner = Uses camera or specialized device to scan QR codes Infrared Remote Control = Sends infrared signal to change TV channels and control electronic devices
Match the following input devices with their common uses:
Microphone = Voice recording and speech recognition Optical Mouse = Pointing device for desktop computers and laptops QR Code Scanner = Scanning QR codes for information retrieval Infrared Remote Control = Changing TV channels and controlling electronic devices
Match the following input device uses with their corresponding devices:
Voice recording and speech recognition = Microphone Pointing device for desktop computers and laptops = Optical Mouse Scanning QR codes for information retrieval = QR Code Scanner Changing TV channels and controlling electronic devices = Infrared Remote Control
Match the following input device descriptions with their corresponding devices:
Converts sound waves into electrical signals = Microphone Uses LED and sensor to detect and track movement on a surface = Optical Mouse Uses camera or specialized device to scan QR codes = QR Code Scanner Sends infrared signal to change TV channels and control electronic devices = Infrared Remote Control
Test your knowledge about input devices with this quiz. Identify different input devices and their functions, such as keyboards, mouse, scanners, and webcams.
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