Basic Logic GatesBasic Logic Gates
All digital systems can be constructed by only three basic logic gates. These basic gates are called the AND gate, the OR gate, and the NOT gate. Some textbooks also include the NAND gate, the NOR gate and the EXOR gate as the members of the family of basic logic gates. The descriptions of the operations of these gates are listed below: AND gate

The AND gate is a circuit which gives a high output (logic 1) if all its inputs are high. A dot () is used to indicate the AND operation. In practice, however, the dot is usually omitted. OR gate

The OR gate is a circuit which gives a high output if one or more of its inputs are high. A plus sign (+) is used to indicate the OR operation. NOT gate
The NOT gate is a circuit which produces at its output the negated (inverted) version of its input logic. The circuit is also known as an inverter. If the input variable is A, the inverted output is written as . NAND gate

The NAND gate is a NOT-AND circuit which is equivalent to an AND circuit followed by a NOT circuit. The output of the NAND gate is high if any of its inputs is low. NOR gate
The NOR gate is a NOT-OR circuit which is equivalent to an OR circuit followed by a NOT circuit. The output of the NOR gate is low if any of its inputs is high. EXOR gate
The Exclusive-OR gate is a circuit which gives a high output if either of its two inputs is high, but not both. A encircled plus sign () is used to indicate the EOR operation. The functions of these basic building blocks are summarized by means of a Truth Table. The table shows all possible input/output combinations for two inputs.

...A logicgate is an elementary building block of a digital circuit. Most logicgates have two inputs and one output. At any given moment, every terminal is in one of the two binaryconditions low (0) or high (1), represented by different voltage levels. The logic state of a terminal can, and generally does, change often, as the circuit processes data. In most logicgates, the low state is...

...EXPT NO. :1 STUDY OF LOGICGATES
DATE :
AIM:
To study about logicgates and verify their truth tables.
APPARATUS REQUIRED:
SL No. | COMPONENT | SPECIFICATION | QTY |
1. | AND GATE | IC 7408 | 1 |
2. | OR GATE | IC 7432 | 1 |
3. | NOT GATE | IC 7404 | 1 |
4. | NAND GATE 2 I/P | IC 7400 | 1 |
5. | NOR GATE | IC 7402 | 1 |
6. | X-OR...

...Digital Logic
•Introduction, Truth Tables and Boolean expressions
•LogicGates
•Combination of LogicGates
•Circuit tracing and Boolean expressions
•Creating Truth Table from a circuit
•Creating a Circuit from a Truth Table
•Basic Boolean Algebra
•Using Boolean Algebra for Circuit Simplification
•Practical Considerations
Digital Circuit versus an analog circuit
•Digital systems operate based on...

...BONAFIDE CERTIFICATE
This is to certify that this project work in the subject of physics on the topic of logicgates has been done by DEBARPITA PANDE , a student of class XII-A in the academic year 2014-2015 under the guidance of Mr.S.K.MISHRA and is submitted to AISSCE Practical Examination conducted by CBSE at Kendriya Vidyalaya No.1 Salt Lake, Kolkata.
Signature of external examiner Signature of chemistry teacher
ACKNOWLEDGEMENT
First and...

...Lab 1: Digital Logic Lab Introduction
Date of experiment: 1/30/2014
Date of Submission: 6/2/2014
Submitted by: Evgeniya Koshelyaevskaya
Group partners : Constantin Bercov, Rachel Revzin
College of Staten Island
Objective
1. To get familiar with the Cadet station and the basic equipment used for the experiment.
2. To investigate the behavior of the IC Chips obtained from the technician.
3. Compare theoretical data with the...

...Boolean logic
Student
Ali Alsaad: 1007194
Date: 20/2/2014
Table of Contents
1-History and introduction
2-Types of Logicgates
3-Uses of logicgates
4-Electronic circuits
5-Conclusion
Introduction
The term Boolean logic (Also known as Boolean algebra) honors George Boole. a self-educated English mathematician. He introduced the algebraic system initially in a small pamphlet, The...

...New Design Technique of Reversible Gates using Pass Transistor Logic
Md. Sazzad Hossain1, Md. Minul Hasan1, Md. Motiur Rahman1, A. S. M. Delowar Hossain1, Ziaul Haque2
1
Computer Science & Engineering, Mawlana Bhashani Science and Technology University 1 Santosh, Tangail-1902, Bangladesh University Grants Commission of Bangladesh Email: sazzad_101@yahoo.com, x.rajib.x@gmail.com
2
Abstract - In this paper, we propose a new design technique of reversible...