Describe the difference between lossy and lossless compressions, and tell when each might be used.

What will be an ideal response?


? Lossy compression is generally used with data that a human consumes, such as an image, a
segment of video, or an audio file. The key idea is that the compression only needs to preserve details to the level of human perception. That is, a change is acceptable if humans cannot
detect the change.
? Lossless compression preserves the original data without any change. Thus, lossless
compression can be used for documents or in any situation where data must be preserved
exactly.

Computer Science & Information Technology

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Which of the following statements could potentially change the value of number2?

a. std::cin >> number2; b. sum = number1 + number2; c. number1 = number2; d. std::cout << number2;

Computer Science & Information Technology

When Print is clicked from the File tab, the right side of the Print pane is a ________

A) preview of the page to be printed B) review of document properties C) list of possible printers D) list of Page Setup settings

Computer Science & Information Technology

Tap or click the list arrow on the left side of a ComboBox object to view the contents. _________________________

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

The ________ Update event is triggered any time you enter or update data on a form.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology