lec6 - 1 Computer Programming I TA C162 20/01/06 Todays...

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Unformatted text preview: 1 Computer Programming I TA C162 20/01/06 Todays Contents DeMorgan's Law More than 2-Inputs Logic Implementation of Combinational Logic Half Adder Full Adder 2 Computer Programming I TA C162 20/01/06 DeMorgan's Law First Law A.B.C.D. . = = A+B+C+D+ . Second Law A+B+C+D . = = A.B.C.D. . Here . represents Logic AND And + represents Logic OR 3 Computer Programming I TA C162 20/01/06 DeMorgan's Law: Example Converting AND to OR (with some help from NOT) Consider the following circuit: A B 1 1 1 1 1 1 1 1 1 1 1 1 B A B A B A Same as A+B! 4 Computer Programming I TA C162 20/01/06 More Examples: Find the complement of function F1 F1 = ABC + ABC F1 = (ABC + ABC) F1 = (X + Y) Here : X = ABC Y = ABC F1 = X.Y Using Second Law F1 = (ABC). (ABC) F1 = (A + B + C) . (A +B + C) Using First Law Exercise: Find complement of F2 = A(BC + BC) 5...
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This note was uploaded on 05/14/2010 for the course CS SS ZG653 taught by Professor Shanta during the Spring '09 term at Birla Institute of Technology & Science.

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lec6 - 1 Computer Programming I TA C162 20/01/06 Todays...

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