Scanners and Touch Screen Technologies (Pages 96-101)

What type of scanner is primarily used for inputting hard copy documents?

• 2D Scanner

• 3D Scanner

• Optical Scanner

• Thermal Scanner

What device converts light into an electric current in a 2D scanner?

• Lens

• Scan Head

• Charge Coupled Device (CCD)

• Xenon Lamp

What technology allows scanned text to be converted into a text file format?

• Image Processing

• Digital Imaging

• Optical Character Recognition (OCR)

• Data Compression

What type of image file is created when a photograph is scanned?

• GIF

• JPEG

• PNG

• BMP

What coordinates do 3D scanners use to scan solid objects?

• Polar Coordinates

• X, Y, and Z

• X and Y

• X, Y, Z, and T

What is one application of 2D scanners at airports?

• Reading passports

• Scanning luggage

• Reading boarding passes

• Identifying baggage

What is the primary function of face recognition software at airports?

• To check flight status

• To read barcodes

• To compare facial images

• To scan luggage

What technology is used in computed tomographic (CT) scanners?

• Magnetic Resonance Imaging

• Infrared Sensors

• X-rays

• Ultrasound

What type of touch screen technology is most common currently?

• Capacitive

• Optical

• Infrared

• Resistive

What is a key advantage of projective capacitive touch screens?

• Low cost

• Poor visibility

• High power consumption

• Multi-touch capability