Importance of Telecommunications in Modern World (1)

8/3/2019 Importance of Telecommunications in Modern World (1)

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Importance of Telecommunications

In Modern World


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INTRODUCTION

A growing importance of telecommunication wasdiscerned since the last three decades of 20thcentury for its ever-growing impact on productivity.

It's an important economic factor that plays a keyrole in evaluating the economic growth.

Telecommunication causes companies to use theirinput resources as much as possible in an effective

way.


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MEANING

Telecommunication is the transmission ofinformation over significant distances to communication.

The communication has always been the crucial part ofmankinds social life.

The means of communication has changed according tothe changes in peoples living conditions and all othercircumstances such as technological developments.

Without even taking a deep breath, we've transitionedfrom mail to email, from telephone to chat, fromnewspapers to blogs, and now to social networks.


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HISTORY

Ancient Systems:

The hydraulic semaphores, which worked with waterfilled vessels and visual signals, functioned as optical

telegraphs. During the Middle Ages, chains of beacons were

commonly used on hilltops as a means of relaying asignal.


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CONTD

Systems since the middle age:

In 1792, Claude Chappe, a French engineer, built thefirst fixed visual telegraphy system.However

semaphore systems suffered from the need forskilled operators and the expensive towers atintervals of 1030 kilometers so it was not sosuccessful.


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ADVANTAGES

Quick and accessible communication

Saves time

Saves gasoline (do not have to drive distance)

More than two people can communicate to oneanother at the same time

Easy to exchange ideas and information via phoneand/or fax

World Wide access Enable end users to communicate electronically and

share hardware, software, and data resources


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COMMUNICATION CHANNELS

The term "channel" has two different meanings. Inone meaning, a channel is the physical medium thatcarries a signal between the transmitter and thereceiver.

Another channel is called the "free space channel".The sending of radio waves from one place toanother has nothing to do with the presence or

absence of an atmosphere between the two.


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Analog versus digital communications

Communications signals can be either by analogsignals or digital signals. There are analogcommunication systems and digital communicationsystems.

For analog signal, the signal is varied continuouslywith respect to the information. In a digital signal,the information is encoded as a set of discrete values


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SOCIETY AND TELECOMMUNICATION

Telecommunication has played a significant role insocial relationships

The popularity of social networking sites has

increased dramatically. In cultural terms, telecommunication has increased

the public's ability to access to music and film.

Telecommunication has also transformed the way

people receive their news.


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MODERN TELECOMMUNICATION

Telephone :

Mobile phones have had a significant impact ontelephone networks.

Sales of mobile phones in 2005 totals 816.6 million. Mobile phones are used for a variety of purposes.

Multiple SIM cards may also be used to takeadvantage of the benefits of different calling plans.


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CONTD

The Internet:

The Internet is a worldwide network of computers andcomputer networks that can communicate with eachother using the Internet Protocol

Any computer on the Internet has a unique IP addressthat can be used by other computers to route informationto it.

The Internet allows greater flexibility in working hours

and location, especially with the spread of unmeteredhigh-speed connections.

Email, is an important communications service availableon the Internet.


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CONTD

LAN, WAN & MAN:

Local Area Networks (LAN)

Connect computers & other information processing devices within a limited physical area.

Connected via ordinary telephone wiring, coaxial cable, or wireless radio & infrared

Systems.

Wide Area Networks (WAN)

Cover a large geographic area.

Metropolitan Area Network(MAN)

A MAN or Metropolitan Area Network is a network that covers a region, often a

metropolitan area that is bigger than a Local Area Network and smaller than a Wide AreaNetwork and consists of several interconnected LANs. This network often serves regional

businesses that have several locations throughout the region or entire cities. With this

configuration, a MAN often is then connected to larger WAN networks.


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DISADVANTAGES

Remote areas do not have access

Remote areas may not be able to afford necessaryequipment

Cannot see facial expressions, therefore leads tomisunderstandings

Cultural barriers

Poor connections or downed power linesduring/after storms

Prank calls


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ECONOMIC EFFECTS

Revenue and growth: The total revenue in the telecom service sector was 86,720 cr

(US$17.6 billion) in 2005-06 as against 71,674 cr (US$14.5billion) in 2004-2005.

Telecommunication is the lifeline of the rapidly growingInformation Technology industry.

Internet subscriber base has risen to more than a 100 millionin 2010.Out of this 11.47 million were broadband connections.More than a billion people use the Internet globally.

It is difficult to ascertain fully the employment potential of thetelecom sector but the enormity of the opportunities can begauged from the fact that there were 3.7 million


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Green IT

Green computing is broadly defined as the study andpractice of using computing resources efficiently.The primary objective of such a program is toaccount for the triple bottom-line. This is anexpanded spectrum of values and criteria formeasuring organizational and societal success withan aim to cut use of hazardous materials and

maximize efficiency of product life while promotingrecyclability. Thus, the key driver for SMBsembracing Green IT measures is cost savings.


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Contd:-

Modern IT systems rely on a complicated mix ofpeople, networks and hardware. As such, a greencomputing initiative must be systemic in nature andaddress increasingly sophisticated problems.Elements of such a solution may comprise itemssuch as end-user satisfaction, managementrestructuring, regulatory compliance, disposal of

electronic waste, telecommuting, and virtualizationof server resources, energy use, thin client solutions,and return on investment.


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Green Initiatives

Key players such as HP and IBM have now begun to manufacture lowpower consuming servers and PCs which utilize roughly 66 % of thepower requirement of older systems.

Blade servers, though still nascent in adoption, are technologicalbreakthroughs in servers which provide the same computing power with

much lower power utilization. Thin clients have quite a few advantages such as space-savings, easier

to secure, and cost reductions due to lower IT management expenses,reduced energy consumption (a typical thin-client uses half the energy of adesktop) and more efficient use of computing resources.

A basic power management technique on computers can result insubstantial energy savings due to their sheer number in the market.

Recycling is quite an under-leveraged technique for being green.Recycling in the business space can be achieved not just in paper usage, butalso in how electronic waste is handled. Paper waste can be minimized bydouble-sided printing, reusing single side printed sheets of paper and othermethods.


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Importance of Telecommunications in Modern World (1)

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