How does a digital signal compare to an analog signal??
What will be an ideal response?
Digital signals are composed of pulses of precise, positive voltages and zero voltages. There's nothing infinite or continuous about a digital signal because it is inherently either on or off. A pulse of positive voltage represents a 1. A pulse of zero voltage (in other words, the lack of any voltage) represents a 0. The use of 1s and 0s to represent information is characteristic of a binary system. Every pulse in the digital signal is a binary digit, or bit. An analog signal, on the other hand, such as the sound of the human voice or music, has an infinite number of tones and subtle inflections. When digitizing sound, the higher the sampling rate, the more accurate the representation of the analog signals. For example, the sampling rate for digitized voice, such as that used by iPhone's Siri, is much lower than the sampling rate used for music albums.?
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Answer the following questions true (T) or false (F)
1. Suppose an exception of type E is thrown in a function but not listed in the exception specification, and is not caught in the function. The exception will be caught in a calling function that has a catch block that declares an exception of that type. 2. Compilers will check code in functions against exception specifications.
The OpenOffice Writer ________ feature allows for the creation of form letters
A) Mail Merge B) Data Source C) Record Changes D) Main Document
When you first open Word 2013, you can select from a set of templates. If you do not find a template in that set that is appropriate for your purposes, how can you access an even broader selection?
What will be an ideal response?
____ measure whether the program meets the original specifications.
A. Tests for correctness B. User-defined tests C. Primitive tests D. Module tests