55Boolean Algebra and Theorems, Minterms and Maxterms
Point to Remember
AND gate unique property is that output is 1 only if all of the inputs are at 1.
We will note later that AND symbol differs from NAND only by the omission of the
bubble (circle) in that. We can note the differences in symbols and truth tables of NOT and
AND in Figures 4.1(a) and (c).
Point to Remember
A truth table has 2
n
rows for 2
n
combination of n inputs. It gives in each of its row m
outputs for a given combination. It gives the logic output(s) after the logical operations
under different possible conditions of the input(s).
4.1.3The OR Logic Operation
An OR operation means that ...
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