Describe three ways of sensing the presence of a user beside a display and thus motivate some features required in an architecture for context-aware systems.
What will be an ideal response?
E.g. active badge sensor, face recognition by camera, voice detection.
An architecture for context-aware computing should (a) be able to accommodate such heterogeneous sensors; (b) abstract values such as “user present” or “user X is present” from the data they provide; (c) deal with the uncertainties and errors in the technologies, e.g. by fusing the results from several types of sensor; (d) detect changes e.g. from absence to presence.
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The number of samples taken per second is called the sampling ____________________.
Fill in the blank(s) with the appropriate word(s).
Match the following terms or features of PowerPoint with their descriptions:
I. TrueType font II. embedded fonts III. AutoRecover IV. AutoCorrect V. AutoFormat A. included within a presentation and can be accessed and viewed from any computer B. how PowerPoint automatically modifies text C. how PowerPoint automatically arranges text and placeholders D. supported by Windows; display and print smoothly at any size E. saves a file every 10 minutes, by default
The fonts you use help communicate the tone you want to set in your document. ____________________
Answer the following statement true (T) or false (F)
The operating system manages each and every piece of hardware and software.
Answer the following statement true (T) or false (F)