Input and Output Devices

What is the name of this INPUT device?

• Light Pen Reader

• Hand Scanner

• Barcode finder

• Barcode Scammer

Which one of these devices is NOT a biometric scanner?

• Fingerprint

• Optical

• Ultrasonic

• Heat Scanner

What is the name of this OUTPUT Device?

• Barcode Reader

• Projector

• Portable Television

• LED Display

Is this an INPUT or OUTPUT device?

• Input

• Output

• Both

• Not a device

How does a touchscreen work?

• It uses live camera footage to see where the user's finger is

• It uses infrared sensing to detect where the user's finger is

• It uses a touch sensor

• It senses changes in an electrical field

What does a microphone do?

• Convert electrical signals to sound

• Attach a hexadecimal value to every note

• Convert sound to electrical signals

Which code is associated with each key of the keyboard?

• JAVA

• QWERTY

• ASCII

• C+

What is the difference between a printer and plotter?

• Plotters use more ink than printers

• Plotters can print on virtually any material

• Inkjet printers have greater accuracy

Which ones of these are used to output sound?

• Mouse
• Speakers
• Microphone
• Headphones

What is the full form of GPS?

• Global Point System

• Global Placement System

• Global perspective System

• Global Positioning System