BBD10803 Input Output devices and Storage technology

Which of the following is an example of a pointing input device?

• Keyboard

• Mouse

• Printer

• Speaker

What is the primary purpose of a barcode reader?

• To capture images

• To print documents

• To read and decode barcodes

• To play audio files

Which of the following is a touch-sensitive input device commonly used in smartphones and tablets?

• Joystick

• Stylus

• Trackball

• Gamepad

Which of the following is an example of a biometric input device?

• Fingerprint scanner

• USB flash drive

• webcam

• Optical character reader (OCR)

Which input device utilizes electrodes to detect electrical activity in the brain and interpret it as commands?

• Virtual reality headset

• Brain-computer interface (BCI)

• Voice recognition system

• Eye tracker

Which of the following input devices is used to capture 3D motion and translate it into virtual interactions?

• Gamepad

• Gyroscope

• Motion controller

• Touchpad

What technology is commonly used in virtual keyboards for touchscreens?

• 
  Capacitive touch technology

• Optical sensors

• Infrared sensors

• Mechanical switches

How does a virtual laser keyboard project the keyboard layout onto a surface?

• Through a holographic projection

• By using a laser beam to draw the keys

• By projecting a visual overlay on the surface

• Using a built-in LED screen

How does a multitouch screen detect and interpret multiple touch inputs?

• By using pressure-sensitive sensors

• By measuring the amount of light blocked by touch

• By capturing and analyzing infrared reflections

• By analyzing changes in electrical currents

PayWave is a contactless payment technology that uses which of the following?

• Near-field communication (NFC)

• Chip and PIN cards

• Radio-frequency identification (RFID)

• Magnetic stripe cards