Introduction to vi editor in Linux and Unix system
The vi editor is the classic screen editing program for Unix systems and is based on a older line editor called ex. It can be used from any type of terminal because it doesn’t depend on arrow and function keys. It uses standard alphabetic keys for command as well as arrow keys.

There are number of enhanced version of vi exists. Some of them are nvi, vim, vile and elvis. In Linux, the vi command is a page link to one of these programs. Most likely it will be vim. Most of the Linux d..............etc

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Introduction about insurance system and tracking management..............etc

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Introduction of Fourth-Generation Cellular Communication System



Third Generation Cellular Communication(3G) 

3G networks provide the ability to transfer voice data and non-voice data (music downloads, emails and instant messaging) over the same network simultaneously.
3G networks deliver broadband capacity and support greater numbers of voice and data customers at lower incremental costs than 2G.

Fourth Generation Cellular Communication (4G)

4G is not one defined technology or standard..............etc

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INTRODUCTION OF CONTROL SYSTEMS


Introduction

In this chapter we attempt to familiarize the reader with the following subjects:
1. What a control system is
2. Why control systems are important
3. What the basic components of a control system are
4. Why feedback is incorporated into most control systems
5. Types of control systems
Let's begin with a simple question. When did you last use the word Control ? Perhaps one may have to think for a while. But the paradox is that one invariably uses this ..............etc

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As a school project I am hoping to get some help from Introduction to Radio Control Hovercraft, as I am has difficulty with the skirt..............etc

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Introduction to Motor Control

Introduction to Motor Control


Intended Audience:
Individuals with an interest in learning about electric motors and how they are controlled
A simple understanding of magnetics is assumed

Topics Covered:
What is an electric motor?
What are some common types of electric motors?
How do these electric motors work?
How these motors are controlled.


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Hi I need a documentation on car showroom management system. I hope you will send me the same as soon as possible...............etc

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introduction to switching system




INTRODUCTION
Telecommunication networks carry information signals among entities, which are
geographically far apart. An entity may be a computer or human being, a facsimile machine, a
teleprinter, a data terminal and so on. The entities are involved in the process of information
transfer which may be in the form of a telephone conversation (telephony) or a file transfer
between two computers or message transfer between two t..............etc

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i am kashif.i want to know about solar traking gear motor system.
i quickly want to know about my topic.thnx..............etc

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presented by:
Wayne_Chen


DC Fan Speed Control PWM Signal Introduction
1. Speed Control Fan Structure
1-1. Use ON/OFF contr
Advantage：
Easy design and control method
Price cheaper
Disadvantage :
I. Power Dissipation is a design issue.
II. Not use friendly.
2. What is PWM Signal ?
PWM(Pulse Width Modulation): It’s a fixed frequency and pulse modulated for fan speed control.
Whenever change the duty cycle, the fan speed will be changed by system requirement
 The Purpose are :
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