Logic gates are electronic circuits that take one or more inputs and produce an output. The basic logic gates are NOT, AND, OR, NAND, NOR, and XOR. Truth tables define the output of each gate for all possible combinations of its inputs. NAND and NOR gates can simplify circuit diagrams since they can reproduce the functions of other gates.
CSEC Physics Review - Introduction To Logic GatesKevin Small
www.knowledgescroll.com
This concise presentation is on the topic of Logic Gates.
This is usually a difficult topic to grasp for those studying CSEC Physics and I hope this presentation helps to clarify any misconceptions.
By viewing this presentation you should be able to:
Understand The Basics of Digital Logic Design
Construct Logical Truth Tables
Understand The Operations of the AND, OR, NOT, NAND, NOR, XOR and XNOR Logic Gates
I discussed here different kinds of logic gate , their equivalent circuit, truth table,set representation,wave form etc. I also have discussed universal gate and their universality. I hope it will be helpful for others.
Logic gates are the basic building blocks of any digital system. It is an electronic circuit having one or more than one input and only one output. The relationship between the input and the output is based on a certain logic. Based on this, logic gates are named as AND gate, OR gate, NOT gate etc.
CSEC Physics Review - Introduction To Logic GatesKevin Small
www.knowledgescroll.com
This concise presentation is on the topic of Logic Gates.
This is usually a difficult topic to grasp for those studying CSEC Physics and I hope this presentation helps to clarify any misconceptions.
By viewing this presentation you should be able to:
Understand The Basics of Digital Logic Design
Construct Logical Truth Tables
Understand The Operations of the AND, OR, NOT, NAND, NOR, XOR and XNOR Logic Gates
I discussed here different kinds of logic gate , their equivalent circuit, truth table,set representation,wave form etc. I also have discussed universal gate and their universality. I hope it will be helpful for others.
Logic gates are the basic building blocks of any digital system. It is an electronic circuit having one or more than one input and only one output. The relationship between the input and the output is based on a certain logic. Based on this, logic gates are named as AND gate, OR gate, NOT gate etc.
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The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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5. 5
Logic
Reasoning conducted or assessed according
to strict principles of validity.
a system or set of principles underlying the
arrangements of elements in a computer or
electronic device so as to perform a
specified task.
6. Logic Gates.
Logic gates are electronic circuits that
operate on one or more input signals to
produce an OUtput signal.
7. Boolean algebra is the algebra of two values. These
are usually taken to be 0 and 1, as we shall do here,
although F and T, false and true, etc. are also in
common use.
9. Truth Table
A truth table is a mathematical table used in logic—
specifically in connection with Boolean algebra, boolean
functions, and propositional calculus—to compute the
functional values of logical expressions on each of their
functional arguments, that is, on each combination of values
taken by their logical variables ...
10. A
a A
0 1
1 0
Truth Table:
A
The output A is true when the input a is NOT true, the output is the inverse of
the input: a = NOT A
A NOT gate can only have one input. A NOT gate is also called an inverter.
NOT
11. AND
A
B
A*B
Logic Gate:
Series Circuit:
A B
AA BB A*BA*B
00 00 00
00 11 00
11 00 00
11 11 11
Truth Table:A*B
"If A AND B are both 1, then Q should be 1.“
(All or nothing.)
12. Three Input AND Gate
A B C ABC
0 0 0 0
0 0 1 0
0 1 0 0
0 1 1 0
1 0 0 0
1 0 1 0
1 1 0 0
1 1 1 1
14. • Find the output of the following circuit
• Answer: (x+y)y
14
x+y
y
(x+y)y
____
15. • Because + and * are binary operations, they
can be cascaded together to OR or AND
multiple inputs.
A
B
C
A
B
C
A+B+C
A+B+C
A
B
A
B
C
ABC
ABC
16. NAND and NOR Gates
• NAND and NOR gates can greatly simplify circuit diagrams.
NAND inverts the output of AND.
• NOR inverts the output of OR.
NAND
NOR
AA BB AA↑↑BB
00 00 11
00 11 11
11 00 11
11 11 00
AA BB AA↓↓BB
00 00 11
00 11 00
11 00 00
11 11 00
17. XOR and XNOR Gates
XOR
XNOR
AA BB AA⊕⊕BB
00 00 00
00 11 11
11 00 11
11 11 00
A B A B
0 0 1
0 1 0
1 0 0
1 1 1
XOR (exclusive OR) :"If either A OR B is 1, but NOT both, Q is 1."
XNOR (exclusive NOR) : invert output of XOR