Computers. Chapter 6
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A dedicated, mobile device for storing and displaying e-books and other electronic media including electronic newspapers and magazines.
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E-book reader
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A keyboard key, like Caps Lock, that turns a feature on or off is called a _______ key.
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toggle
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Bar code readers use _______ embedded in them to read bar codes.
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photoelectric cells
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Keyboards that are widely used on various smartphones and other small portable devices, and which are designed primarily for communicating via texting and connecting to the Web.
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Thumb
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OMR, OCR, and MICR are all types of _______.
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character and mark recognition devices
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Printers connected to the Internet that provide printing services to others on the Internet are called _______.
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Cloud printers
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Specialized devices with a large display connected to a computer projector and are widely used in classrooms and corporate boardrooms.
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Digital or interactive whiteboards
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The arrangement of keys on a keyboard, QWERTY reflects the keyboard layout by _______.
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taking the letters of the first six alphabetic characters found on the top row of keys
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The distance between each pixel.
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Dot Pitch
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The most widely used audio-input device is the _______.
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microphone
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The most widely used audio-output devices.
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speakers and headsets
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The proportional relationship between a display's width and height.
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Aspect ratio
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The series of dots that form the image on a monitor are called _______.
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pixels
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The size, or _______, is measured by the diagonal length of a monitor's viewing area.
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active display area
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The study of human factors related to things people use.
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Ergonomics
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These screens can be touched with more than one finger, which allows for interactions such as rotating graphical objects on the screen with your hand or zooming in and out by pinching and stretching your fingers.
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Multitouch
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This indicates the monitor's ability to display colors by comparing the light intensity of the brightest white to the darkest black.
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Contrast ratio
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This reading device is used in banks to read the numbers on the bottom of checks and deposit slips
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MICR
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This type of mouse emits and senses light to detect mouse movement.
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Optical
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Two categories of laser printers are _______.
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personal and shared
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Type of keyboard that uses a touch screen as the input device.
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Virtual
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What kind of specialized monitor is especially useful for graphic artists, designers, and publishers?
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High-definition television (HDTV)
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Which of the following allows the transmission of telephone calls over computer networks?
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Voice over IP
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Which of the following is not a type of scanning device?
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Stylus
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Which of the following printer features enables you to print on both sides of a sheet of paper?
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Duplex
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Which of the following statements is incorrect?
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Printer speed is measured in the number of words printed per minute.
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Which of the following types of character recognition systems is used for standardized multiple-choice testing?
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OMR
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_______ is any data or instructions that are used by a computer.
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Input
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_______-input devices convert sounds into a form that can be processed by the system unit.
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Audio
