What is the binary numbering system and why was it chosen by computer engineers to be used in computers?
What will be an ideal response?
The binary system uses the number two as its base. Each binary digit, or bit, is represented by a one or zero. Bits are usually grouped by eight because a byte contains eight bits. Computer engineers chose this numbering system because logic chips make binary decisions based on true or false, on or off, and so forth. With eight bits, a computer programmer can represent 256 different colors for a video card, for example. (Two to the power of eight, or 28, equals 256.) Therefore, black can be represented by 00000000, white by 11111111, and so on.
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Answer the following questions true (T) or false (F)
1. If, in a class, one uses the keyword public:, it affects only the member that immediately follows the keyword public, making this member accessible to any other function defined anywhere. 2. There is no access to private members of a class by any function defined outside the class.
____ exploration is a valuable strategy that can be used by both system administrators and potential intruders for gathering information about a system and its infrastructure vulnerabilities.
A. One-sided B. Sequential C. Inferential D. Combinational
When performing a mail merge manually, the first thing you do is ____.
A. choose the recipient list B. insert merge fields C. preview the letters D. choose the type of document you want to create
The most common form of cabling uses ____________________ wire wrapped up in some kind of protective sheathing.
Fill in the blank(s) with the appropriate word(s).