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Review Questions

Review Questions

1:What are two popular compressed digital storage formats for audio signals?
A1: Answer: MP3 and WMA are digital storage formats for audio files that significantly reduce the information required to store the audio information. Windows XP Media Player can convert CDs with CDA uncompressed audio tracks into WMA and (with an extra cost add-in software) into MP3 files for subsequent playback.
2:What are the three components that differentiate a multimedia entertainment PC from any other home PC?
A2: Answer: The graphics card that makes TV viewing possible, the large-screen monitor that makes TV viewing pleasurable, and the sound card that delivers 5.1 sound for DVD playback.
3:What type of networking makes the most sense for a home PC?
A3: Answer: A wireless LAN gives the greatest flexibility in locating the PC components without the hassles of wiring. Further, wireless LANs support wireless print servers that locate printers anywhere in a facility and wireless Web cameras that can implement cool security monitoring applications.
4:What is AC-3?
A4: Answer: AC-3 is a Dolby audio encoding/decoding technology used in digital television, in DVDs, in HDTV, in digital cable, and in digital satellite transmission to provide support for 5.1 speaker systems.
5:Can stereo speaker systems produce surround sound?
A5: Answer: With special digital signal processing and enhancement, stereo speakers can produce fuller-sounding audio that simulates surround sound. This is not true surround sound produced by independent speaker channels such as those decoded by AC-3 systems.
6:What Windows operating system is the most closely aimed at multimedia applications?
A6: Answer: Windows XP is most closely aimed at multimedia and home entertainment applications. For example, the Windows XP Media Player plays DVDs, while the previous Media Player versions running on Windows 9x and Windows 2000 do not play DVDs.


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