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Definition of "Boundary Protection Device" |
Device with appropriate mechanisms that facilitates the adjudication of different interconnected system security policies and/or monitors and controls communications at the external boundary of an information system to prevent and detect malicious and other unauthorized communications. / The half adder adds two single binary digits A and B. It has two outputs, sum 'S' and carry 'C'. The carry signal represents an overflow into the next digit of a multi-digit addition. The value of the sum is 2C + S. The simplest half-adder design, pictured on the right, incorporates an XOR gate for S and an AND gate for C. With the addition of an OR gate to combine their carry outputs, two half adders can be combined to make a full adder. |
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