LOGIC GATES Material

Dear Students, Click the following link n download the LOGIC GATES


https://drive.google.com/file/d/0B2SC6jed0s76Wk5LOXlpQlZXcFU/view?usp=sharing

Know how long you have started your computer?

Know how long you have started your computer?

1. Start>Run  or hit Windows + R
2. type Systeminfo 

Note: No space between system and info
Output will be like

Attendance on 10-10-2014 for CSE-A&B

Attendance on 10-10-2014 for CSE-A

Class

Absentees:1, 5, 23, 25, 27, 40, 41, 42, 43, 45, 48, 49, 50, 57



Attendance on 10-10-2014 for CSE-B

Class

Absentees: 62, 63, 65, 70, 73, 79, 90, 93, 99, A2, A3, B0, B2, B9, LE-03

FRESHERS DAY CELEBRATIONS

UNIT-2, Introduction

Logic

• Formal logic is a branch of mathematics that deals with true and false values instead of numbers.

• In the mid-19th century, George Boole developed many Logic ideas.

• Boolean logic deals with equations where the operators are “AND” or “OR” instead of “add” and “multiply”.

Image: George Boole

Electric Logic

• Logical values can easily be expressed by an electrical circuit.

• “True” or “1” can be defined as voltage on a wire while “False” or “0” can be defined as  no voltage. We will use positive logic.

• Analog values can be anything while digital Analog values can be anything while digital only has discrete values, 0 or 1.

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   Boolean functions may be practically implemented by using electronic gates.

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Gate INPUTS are driven by voltages having two nominal values, e.g. 0V and 5V representing logic 0 and logic 1 respectively. 

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The OUTPUT of a gate provides two nominal values of voltage only, e.g. 0V and 5V representing logic 0 and logic 1 respectively.