Questions and Answers
A(n) _______ terminal is entirely dependent for all its processing activities on the computer system to which it is connected.
dumb
The two main categories of printer are ______ and ______.
impact; nonimpact
What is the study of the physical relationships between people and their work environment?
ergonomics
A(n) _________ is an input device that is rolled about on a desktop and directs a pointer on the computer's display screen.
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What consists of devices that translate information processed by the computer into a form that humans can understand?
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What is the science of measuring individual body characteristics?
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A(n) __________ accepts input supplied with finger and hand gestures.
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LCD is short for ___________.
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A(n) _________ is software that describes the shape and position of characters and graphics to the printer.
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When people in different geographic locations can have a meeting using computers and communications, it is called ______.
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An input device that collects specific data directly from the environment and transmits it to a computer is called a(n) ________.
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A debilitating condition caused by pressure on the median nerve in the wrist is called ________.
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The measure of the number of dots that are printed in a linear inch is called _________.
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A printer that forms characters or images by striking a mechanism against an inked ribbon is called a(n) _________ printer.
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______ printers enabled the development of desktop publishing.
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_________ is short for 'picture element'.
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Which of the following is not a pointing device?
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Which of the following is not a source data-entry device?
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Which of the following display standards has the highest resolution?
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Which of the following is not considered hardcopy output?
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Which of the following factors does not affect the quality of a screen display?
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A device with a microchip that contains code numbers that can be read by a scanner's radio waves is a(n)?
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On a computer screen, the more pixels that appear per square inch, the higher the resolution.
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Photos taken with a digital camera can be downloaded to a computer's hard disk.
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Resolution is the amount of space between the centers of adjacent pixels.
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The abbreviation dpi stands for 'dense pixel intervals'.
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Pointing devices control the position of the cursor on the screen.
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Output hardware consists of devices that translate information processed by the computer into a form that humans can understand.
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Optical character-recognition software reads 'bubble' marks and converts them into computer-usable form.
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The lower the refresh rate, the more solid the image looks on the screen.
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Bar codes are input with pointing devices.
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Study Notes
Computer Terminology and Concepts
- A dumb terminal relies completely on the connected computer for processing tasks.
- Printers fall into two main categories: impact and nonimpact.
- Ergonomics involves studying the interaction between people and their work environments to enhance comfort and productivity.
Input and Output Devices
- A mouse is an input device that moves across a desktop to control a pointer on the display screen.
- Output devices convert processed computer information into a human-readable form.
- Biometrics involves measuring unique physical characteristics for identification purposes.
- Touch screens allow input through finger and hand gestures.
- Liquid Crystal Display (LCD) refers to a type of screen technology.
- A sensor collects environmental data and sends it to a computer.
Printing Technologies
- PDL (Page Description Language) describes characters and graphics positioning for printers.
- Impact printers create images by striking a mechanism against an inked ribbon, while nonimpact printers like laser printers use a different technology.
- Laser printers have facilitated the advancement of desktop publishing.
Image Quality and Resolution
- Pixels, short for "picture elements," are the smallest units of a digital image.
- DPI (dots per inch) measures the number of printed dots within an inch, influencing print quality.
- Higher pixel density leads to improved screen resolution.
- Factors unrelated to screen quality include speed, although refresh rate, resolution, and color depth do matter.
Data Entry Devices
- RFID tags contain microchips that store information readable by scanners via radio waves.
- Not all input devices are meant for data entry; for example, keyboards are not pointing devices.
True/False Statements
- Increased pixel density on screens correlates with higher resolution.
- Digital camera images can be transferred to a computer's hard disk.
- The space between adjacent pixels affects resolution; however, this can lead to some misunderstandings about definitions related to pixels.
- Output hardware translates computer data into a human-understandable format.
- Pointing devices like mice help control cursor position effectively.
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Description
Test your knowledge on computer terminology, input/output devices, and printing technologies. This quiz covers essential concepts such as the functions of various devices and the principles of ergonomics in computing. Enhance your understanding of how different components interact in the world of technology.
