Give the characteristics of UWB technology.
What will be an ideal response?
Ultra Wideband (UWB) communication utilizes spreading data across many frequencies
requires less power to reach the same distance. The key characteristics of UWB are:
? Uses wide spectrum of frequencies
? Consumes very low power
? Short distance (2 to 10 meters)
? Signal permeates obstacles such as walls
? Data rate of 110 at 10 meters, and up to 500 Mbps at 2 meters
? IEEE unable to resolve disputes and form a single standard
You might also like to view...
Older email programs were not able to handle binary files. Suppose you are emailing a file that has been compressed with gzip, which produces a binary file, and the recipient is using an old email program. Refer to the man page on uuencode, which converts a binary file to ASCII. Learn about the utility and how to use it.
a. Convert a compressed file to ASCII using uuencode. Is the encoded file larger or smaller than the compressed file? Explain. (If uuencode is not on the local system, you can install it using one of the tools described in Appendix C; it is part of the sharutils package.) b. Would it ever make sense to use uuencode on a file before compressing it? Explain.
Computer science often deals with extremes when it comes to time. Even though modern computers can perform billions of operations per second, some tasks—such as decoding an encrypted message— still might require decades of computation.
Create a Web page named years.html that prompts the user to enter a specific number of years and then displays the corresponding time in seconds. To simplify this task, ignore leap years and assume that all years consist of exactly 365 days. For example, given an input value of 2.5, your page should display the message: That’s 78840000 seconds! Once you complete your page, use it to approximate the number of seconds left in the current school semester. How many seconds remain in your college career? Report your results.
?
?As the accompanying figure illustrates, the _____ changeover method allows the new system to be implemented in stages, or modules.
A. ?phased operation B. ?parallel operation C. ?pilot operation D. ?direct cutover
What feature enables you to copy a file that is in use?
A. Volume Shadow Copy Service B. System Restore C. Recovery Console D. Windows Recovery Environment