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Old 06-21-2013, 02:22 PM
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yaser yaser is offline
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Join Date: Aug 2009
Location: Pasadena, California, USA
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Default Re: Confused on question 6.

Quote:
Originally Posted by royal View Post
Thanks for the quick reply.

I've only just realised that the fact I've done very little Boolean other than knowing what the basic gates are is making this confusing for me? I did some further reading, but it's hard to find a quick summary? Sorry to be asking dumb questions but using AND, OR and NOT I get 9 possible functions instead of 8:

a+b+c
a+b*c
a*b*c
a*b+c

a'b'c
a'b+c
a+b'c

a*b'c
a'b*c

Is there something straight forward thats wrong about this or do I need to go and spend an evening learning these before moving on?!
No need to go through AND/OR implementation in this case. All you need is to list the all possible target functions (by values) on these three points exhaustively. That would be the 2^3=8 possible binary combinations of of 3 bits.
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