Posted by **Sandhya** on Wednesday, June 10, 2009 at 1:18am.

Design some simple digital circuits based on Boolean expressions. Draw circuits that implement the following Boolean expressions using some combination of AND, OR, NOT, NAND, and NOR gates.

- NOT X OR NOT Y OR Z

- X OR Y OR NOT Z

- NOT X AND Y OR NOT Y AND Z

Write a two to three page paper discussing your design. Please include the following:

1. Diagrams of your logic circuits.

2. Truth tables that indicate the output (a 0 or a 1) for each possible combination of values of X, Y, and Z.

- physics -
**Dr Russ**, Wednesday, June 10, 2009 at 4:43am
This is one of those where you need to post your suggestions and we will comment. From a personal point of view I like to convert the words into a Boolean symbols expression before I do anything else. You may have done the reverse to post it here, of course.

If it is useful there are truth tables for the various gates here:

http://en.wikipedia.org/wiki/Logic_gate

It is not clear in your question if you can use multiple input gates, such as 3-input OR Gates?

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