Post on 04-Jan-2016
Lynbrook Computer Science
February 23, 2009
AnnouncementsACSL – March 9
Digital Electronics – 2Graph Theory – 2Boolean Algebra – 1
USACO – March 13-16
Digital ElectronicsLogic “Gates”Just Boolean
Algebra!AND NAND (NOT
AND)
OR NOR (NOT OR)
XOR (Inequality)
XNOR (NOT XOR)(Tests equality)
NOT
Try it outFind all ordered triples that make this circuit
true.
SolutionConvert to boolean algebra: (A XOR B) XOR
(B OR C)Truth table: Evaluate each part individually
More challengingFind all gates
(AND/OR/NAND/NOR/XOR/XNOR) that can replace the “X” such that only one tuple makes the circuit true.
Solution