Input and Output Devices

What is the primary function of a keyboard?

• Inputting data

• Printing documents

• Sending emails

• Playing music

Name two types of monitors commonly used in computers.

• OLED

• CRT

• Plasma

• LCD, LED

What are the different functionalities of a mouse?

• Swiping, double-clicking, rotating

• Pointing, clicking, scrolling, dragging

What are some features of a printer?

• Printing in 3D

• Printing in color, printing in black and white, scanning documents, copying documents, connecting wirelessly, printing double-sided

• Sending emails

• Cooking breakfast

How are scanners used in computing?

• Scanners are used to play music in computing.

• Scanners are used to cook food in computing.

• Scanners are used to send emails in computing.

• Scanners are used to convert physical documents or images into digital format.

What is the role of sensors in input and output devices?

• Sensors are not involved in detecting physical changes

• Sensors are only used in output devices

• Sensors convert electrical signals into physical changes

• Sensors detect physical changes and convert them into electrical signals for processing in input devices, while in output devices, sensors provide feedback for adjustments or improvements.

Which key on the keyboard is used to capitalize letters?

• Tab

• Ctrl

• Alt

• Shift

What is the purpose of a touch screen monitor?

• To emit sound when touched

• To enable direct interaction with the computer or device by touching the display.

• To project holographic images

• To provide a visual display only

Explain the difference between a laser printer and an inkjet printer.

• Laser printers use liquid ink, while inkjet printers use toner powder.

• Laser printers use toner powder and a laser, while inkjet printers use liquid ink sprayed through nozzles.

• Inkjet printers are faster than laser printers.

• Laser printers are more cost-effective than inkjet printers.

How does a trackball mouse differ from a traditional mouse?

• Trackball mouse is wireless, traditional mouse is wired.

• Trackball mouse has a touchpad, traditional mouse has a scroll wheel.

• Trackball mouse uses a movable ball, traditional mouse uses a stationary sensor.

• Trackball mouse uses a stationary ball, traditional mouse uses a movable sensor.