The Answer of Chapter 6

True/ false

1.  T
2.  T
3.  F
4.  T
5.  F
6.  F
7.  T
8.  F
9.  F
10. T
11. F
12. F
13. F

Multiple Choice

1. D
2. B
3. A
4. D
5. D
6. B
7. C
8. D

Matching

1.  D
2.  J
3.  G
4.  H
5.  F
6.  C
7.  A
8.  E
9.  B
10. I

Short Answer

1. - A higher resolution uses a greater number of pixels and thus provides a smoother, sharper, and clearer image. As you increase the resolution, however, some items on the screen appear smaller.
   - With LCD monitors and screens, resolution generally is proportional to the size of the device.

2. - via OTA it used a VHF/UHF antenna; via satellite, it used an HDTV-compatible satellite receiver/tuner; and via cable, you need an HDTV-compatible cable box.
   - Users plug one end of a cable in the game console and the other end in the video port on the television. Home users often prefer the larger television displays for game playing, watching movies, and browsing the Internet on a television connected to a game console.

3. - Bluetooth printing and Infrared printing.
   - Bluetooth printing, a computer or other device transmits output to a printer via radio waves. The computer or other device and the printer do not have to be aligned with each other; rather, they need to be within an approx i mate 30-foot range. With infrared printing, a printer communicates with a computer or other device using infrared light waves. To print from a smart phone, for example, a user lines up the IrDA port on the smart phone with the IrDA port on the printer.

4. - Ink-jet printer forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper.
   - Professional applications requiring high image quality, such as photography studios, medical labs, and security identification systems, use dye-sublimation printers. These high-end printers cost thousands of dollars and print images in a wide range of sizes. Most dye-sublimation printers for the home or small business user, by contrast, typically print images in only one or two sizes and are much slower than their professional counterparts.

5. - A 2.1 speaker system contains two speakers and a subwoofer. A 5.1 speaker system has four satellite speakers, a center speaker, and a subwoofer. A 6.1 speaker system has four satellite speakers, a front center speaker, a rear center speaker, and a subwoofer. A 7.1 speaker system has four satellite speakers, two side speakers, a center speaker, and a subwoofer.
   - Audio resolution, which is the number of bytes that represent sound in a given time, is stated as a bit rate such as 8-bit, 16-bit, or 24-bit. The examples are 8-bit resolution, the sound quality is similar to an AM radio; 16-bit resolution yields optical disc-quality sound; and 24-bit resolution is used for high-quality digital audio editing.