Computer Hardware and Devices Quiz

What is the main function of a display device?

• To input data

• To display data

• To store data

• To process data

Which of the following is NOT an example of an input device?

• Microphone

• Printer

• Fingerprint scanner

• Scanner

What does OCR stand for?

• Overhead Camera Recognition

• Output Control Register

• Optical Character Recognition

• Online Computer Repair

What is the main purpose of a device driver?

• To convert printed characters into digital text

• To connect input and output devices

• To communicate with the operating system

• To display information on the screen

Which factor determines the quality of an image taken by a scanner or camera?

• Color depth

• Resolution

• Dynamic range

• All of the above

What is the maximum number of bits used to indicate the colors of a single pixel in 32-bit color depth?

• 32 bits

• 8 bits

• 16 bits

• 24 bits

Which wireless communication medium is commonly used for connecting wireless audio devices to a computer?

• RSS

• NFC

• Bluetooth

• Wi-Fi

What is the main disadvantage of display devices?

• Low power consumption

• Private content display

• High cost

• Permanent output

What is the main advantage of using an interactive whiteboard in a classroom?

• Reduced cost

• Limited functionality

• Increased privacy

• Active participation

Which type of printer has a higher pages per minute (ppm) value, ink printer or laser printer?

• Both have the same ppm

• Depends on the brand

• Laser printer

• Ink printer