What is an input device?
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What is an input device?
An input device is a hardware component that allows users to interact with a computer system by inputting data or commands.
Keyboard
A keyboard is an input device that allows users to input text and commands by pressing keys.
What is the primary function of a mouse?
The primary function of a mouse is to navigate the computer screen and click on items.
Touchscreen
A touchscreen is an input device that allows users to interact with the device by touching the screen, commonly found on smartphones and tablets.
What is the main purpose of a scanner?
The main purpose of a scanner is to digitise physical documents or images, converting them into a format that the computer can process.
Biometric device
A biometric device is an input device used for security purposes to verify a user's identity, such as fingerprint scanners or facial recognition systems.
What is a graphics tablet used for?
A graphics tablet is used to allow artists and designers to draw or sketch directly onto a computer, particularly useful for graphic design and 3D modelling.
True or False?
A joystick is primarily used for word processing.
False.
A joystick is primarily used for computer games, especially flight simulators, allowing users to control movement more fluidly than with a keyboard or mouse.
Barcode scanner
A barcode scanner is an input device that scans barcodes, typically used in retail and inventory management.
What is the main function of a microphone as an input device?
The main function of a microphone as an input device is to capture audio input, which can be used for voice commands, recording audio, or video conferencing.
What is an output device?
An output device is a hardware component that receives information from a computer system and presents it to the user in a comprehensible form.
Monitor
A monitor is an output device that displays visual output from the computer, including text, images, and videos.
What is the primary function of a printer?
The primary function of a printer is to produce a hard copy of digital documents or images.
Speakers
Speakers are output devices that output audio from the computer, such as music, sound effects, or voice.
What is a Braille display used for?
A Braille display is used to output information in Braille, allowing visually impaired users to read text from the computer.
Plotter
A plotter is an output device used for printing large, high-quality diagrams and designs, often used in engineering or architecture.
What is the main purpose of a projector?
The main purpose of a projector is to project the computer's display onto a large screen or wall, useful for presentations or movie viewing.
True or False?
Headphones are considered input devices.
False.
Headphones are considered output devices that output audio directly to the user, providing a more personal and potentially immersive experience.
Virtual Reality (VR) Headset
A Virtual Reality (VR) Headset is an output device that provides an immersive visual and audio output, primarily used for gaming and virtual simulations.
What is an example of a computer-controlled machinery output device?
An example of a computer-controlled machinery output device is an actuator.
What is a sensor?
A sensor is an input device that measures a physical property of its environment such as light levels, temperature, or movement.
Monitoring system
A monitoring system is a system that tracks the state of a system, gathers data, and may issue warning messages.
What is a control system?
A control system is a system that controls based upon the input from sensors, such as starting a heater when water temperature falls below an acceptable level.
Feedback loop
A feedback loop is a process where outputs are recycled and used as inputs, creating a continuous cycle.
What does an acoustic sensor measure?
An acoustic sensor measures sound levels.
Accelerometer
An accelerometer is a sensor that measures acceleration rate, tilt, and vibration.
What is the typical use of a humidity sensor?
A humidity sensor is typically used to monitor humidity in greenhouses.
True or False?
An infra-red sensor is used to detect motion or a heat source.
True.
An infra-red sensor is used to detect motion or a heat source.
pH sensor
A pH sensor is a device that measures the acidity or alkalinity of a substance.
What type of sensor would be used to help drivers when reversing?
A proximity sensor would be used to help drivers when reversing.