题目内容

OMR, OCR, and MICR are all types of _______.

A. Radio Frequency Card Readers
B. magnetic card readers
C. bar code readers
D. character and mark recognition devices

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_______-input devices convert sounds into a form that can be processed by the system unit.

A. Electrolyzing
B. Plotting
C. Webcam
D. Audio

The most widely used audio-input device is the _______.

A. Webcam
B. radio frequency card reader
C. microphone
D. stylus

The series of dots that form the image on a monitor are called _______.

A. picas
B. bits
C. pixels
D. bytes

This indicates the monitor's ability to display colors by comparing the light intensity of the brightest white to the darkest black.

A. Contrast ratio
B. Dot Pitch
C. Active display area
D. Resolution