MESSAGE
| DATE | 2014-12-13 |
| FROM | Ruben Safir
|
| SUBJECT | Subject: [LIU Comp Sci] Logic Gates
|
From owner-learn-outgoing-at-mrbrklyn.com Sat Dec 13 23:58:05 2014
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Date: Sat, 13 Dec 2014 23:58:04 -0500
From: Ruben Safir
To: learn-at-nylxs.com
Subject: [LIU Comp Sci] Logic Gates
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Logic Gates
Consider following scenario.
A system used 3 switches A, B and C; a combination of switches
determines
whether an alarm, X, sounds: If switch A or switch B are in the ON
position and if switch C is in the OFF position then a signal to sound
an
alarm, X is produced.
1. Establishing the truth table of the circuit.
A B C F
--------
0 0 0 0
0 0 1 0
0 1 0 1
0 1 1 0
1 0 0 1
1 0 1 0
1 1 0 1
1 1 1 0
2. Determine output functions X= f(A,B,C)
(A+B) * C' = F <<==== That was my thought
F(A,B,C) = A'BC' + AB'C' + ABC' <<=== This is another thought
3. draw combinational circuit for above function
http://www.nylxs.com/images/final_quest_2.png
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