IIT: Chapter 6 – Output

I. True/False

1. True
2. True
3. False
4. True
5. False
6. False
7. True
8. False
9. False
10. True
11. False
12. False
13. False

II. Multiple Choice

1. D. letters,reports, and e-mail messages
2. D. LED
3. A. DisplayPort
4. D. diagonal
5. D. dots per inch (dpi)
6. B. if the multifunction peripheral breaks down, all functions are lost
7. C. interactive whiteboard
8. D. Force feedback

III. Matching

1. Display device – (d) An output device that visually conveys text, graphics, and video information.
2. LCD monitor – (j) A desktop monitor that uses a liquid crystal display to produce images.
3. Head-mounted display (HMD) – (g) A display in a helmet, goggles, or glasses.
4. Nit – (h) Unit of visible light intensity equal to once candela per square meter.
5. Candela – (f) Standard unit of luminous intensity.
6. Aspect ratio – (c) Defines a display’s width relative to its height.
7. Hard copy – (a) Printed information that exists physically and is a more permanent form of output.
8. Nonimpact printer – (e) Forms characters and graphics on a piece of paper without actually striking the paper.
9. Audio output device – (b) Component of a computer that produces music, speech, or other sounds, such as beeps.
10. Tactile output – (i) Provides the user with a physical response from a device.

IV. Short Answer

1. How does resolution affect images displayed on a monitor?
   • Resolution is the number of horizontal and vertical pixels in a display device. High resolution uses a great number of pixels and provides a smoother, sharper, and clearer image. As the resolution is increased, some items on the screen appear smaller.

   How does resolution relate to the size of an LCD monitor or screen?

   • Resolution generally is proportional to the size of the device. For example, a widescreen 9-inch LCD monitor typically has a resolution of 1440 x 900, while a widescreen 22-inch LCD monitor has a resolution of 1680 x 1050.
2. Describe some of the features of HDTV.
   • HDTV works with digital broadcast signals, transmits digital sound, supports wide screen, and provides resolution up to 1920 x 1080 pixels.

How do game console users set up the output for the consoles?

• Users plug one end of a cable in the game console and the other end in the video port on the television.
3. What are two types of wireless printing technology?
   • Bluetooth printing and infrared printing

How do they differ in how they communicate with a computer or other device?

• With bluetooth, computer can transmit output to a printer via radio waves. The devices do not need to be aligned with each other. They can be at a distance under 30-foot range. With infrared, the devices use infrared light waves. Both device IrDA ports need to be lined up together.
4. How does an ink-jet printer work?
   • An ink-jet printer forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper.

What are the differences between dye-sublimation printers used by professionals as compared to home or small business users?

• Professionals often use the printer for photographic quality purposes, and it would cost thousands of dollars with the images in a wide range of sizes. Home or small business users typically print images in only one or two sizes and are much slower than the professional counterparts. They are also less expensive / cheaper.
5. What might be included with a surround sound system for a computer?
   • Center speaker, satellite speakers, and subwoofer.

What is audio resolution and what are the three examples of audio resolution?

• Audio resolution is the number of bytes that represent sound in a given time. It’s stated as a bit rate such as 8-bit, 16-bit, or 24-bit.