OCR J275 Hardware Part B

Why are input devices needed?

• To show the results of processing.
• To convert analogue data into a digital form the computer can understand.

Why are output devices needed?

• To show the results of processing.
• To convert analogue data into a digital form the computer can understand.

Which input device is commonly used for gaming?

• Keyboard
• Mouse
• Joystick
• Barcode Scanner

Which input devices inputs letters, numbers, symbols and special characters into a computer?

• Microphone
• Tracker Ball
• Mouse
• Keyboard

Which input device would you use to capture sound?

• Web cam
• Microphone
• Speakers
• Monitor

Which input device would you use to capture video in real-time?

• Web cam
• Sip and puff switch
• Microphone
• Monitor

Which output device produces a hard copy?

• Speakers
• Printer
• Keyboard
• Monitor

Which output device is used to produce a display?

• Printer
• Speakers
• Web cam
• Monitor

How does an inkjet printer work?

• Ink is in the form of a toner that is sealed onto the page by heated rollers.
• Sprays ink onto the page.

How does a laser printer work?

• Sprays ink onto the page.
• Ink is in the form of a toner that is sealed onto the page by heated rollers.