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Monday, February 25, 2008

Information technology




Information technology (IT), as defined by the Information Technology Association of America (ITAA), is "the study, design, development, implementation, support or management of computer-based information systems, particularly software applications and computer hardware." IT deals with the use of electronic computers and computer software to convert, store, protect, process, transmit, and securely retrieve information.

Today, the term information technology has ballooned to encompass many aspects of computing and technology, and the term is more recognizable than ever before. The information technology umbrella can be quite large, covering many fields. IT professionals perform a variety of duties that range from installing applications to designing complex computer networks and information databases. A few of the duties that IT professionals perform may include data management, networking, engineering computer hardware, database and software design, as well as the management and administration of entire systems. When computer and communications technologies are combined, the result is information technology, or "infotech". Information Technology (IT) is a general term that describes any technology that helps to produce, manipulate, store, communicate, and/or disseminate information.

IT enabled Services

The Indian Information Technology enabled Services (ITeS), which started with basic data entry tasks over a decade ago, is witnessing an expansion in its scope of services to include increasingly complex processes involving rule-based decision making and even research services requiring informed individual judgment. It now offers services such as knowledge process outsourcing (KPO), legal process outsourcing (LPO), games process outsourcing (GPO) and design outsourcing among others.

The number of patent filings from Indian R&D centres has been growing over the years. More and more cutting-edge products are being developed in India. While outsourcing lower-level technical jobs to India has been a practice of multinational technology firms, the increasing reliance on Indian R&D operations is a growing trend. Aviation majors like Boeing and Lockheed Martin looking at setting up captive R&D centres in India. In fact, estimates by National Association of Software Services Companies (Nasscom) and Booz Hamilton say that engineering services outsourcing could touch US$ 40 billion by 2020.

India continues to have an edge over other outsourcing countries also because of the global confidence it inspires in terms of turn around time (TAT).

Growing at a rate of 30.7 per cent, with revenues of US$ 39.6 billion in 2006-07, the IT/ITeS sector's projected figures for 2007-08 stand at US$ 49-50 billion at a growth rate of 24-27 per cent, says Nasscom. Of this US$ 50 billion, a considerable chunk will be contributed by the domestic market. With the fast growing Indian economy being largely consumer-led, companies are now opting for BPO services to beat competition. Nasscom says the domestic BPO market is expected to grow to US$ 7.6 billion in 2011. The segment is growing at about 40 per cent CAGR.

The domestic BPO segment is growing at 35-40 per cent a year and employs 1,50,000-2,00,000 people. According to Nasscom, domestic BPO revenues almost doubled to US$ 1.18 billion in 2006-07 compared to US$ 600 million in 2005. The domestic market is expected to reach US$ 10 billion by FY08, at a growth rate of 20-22 per cent. Some global BPOs such as Aegis Communications Group, Firstsource Solutions, Infovision, Intelenet, IBM-Daksh are now aggressively looking at the local market for BPO business.

However, hardware still constitutes a large portion of the domestic pie at US$ 7.6 billion compared to US$ 5.6 billion from services, US$ 1.6 billion from software and US$ 1.2 billion from BPO.

ITeS/BPO exports grew by 33.5 per cent to clock revenues of US$ 8.4 billion in FY07, marginally higher than the growth of 33.3 per cent in FY06. India holds a dominant share of the global offshore IT-ITeS sector (65 per cent of the global market in offshore IT and 46 per cent of the ITeS market). However, at US$ 31.3 billion in FY07, Indian IT-ITeS exports account for less than 3 per cent of the global spend on IT and ITeS. If India maintains its current share of the global offshore IT-ITeS market, IT- ITeS exports from India will exceed US$ 60 billion by FY10 and US$ 86 billion by FY12. Further, growing at current trends, Indian IT-ITeS exports are projected to reach nearly US$ 330 billion by FY20 (nearly 14 per cent of the projected worldwide spend).

For exports, the US and UK are the largest markets. However, the share of Europe has been increasing steadily. For FY06, revenues from the Americas totalled 67 per cent, Europe 25 per cent and rest of the world, 7.7 per cent. This is an area, the ITeS sector is working on now - increasing its business from countries other than the US.


Information Technology Sector IBEF: February 21, 2006

Over the past decade, the Information Technology (IT) industry has become one of the fastest growing industries in India, propelled by exports (the industry accounted for more than a quarter of India’s services exports in 2004-05). The key segments that have contributed significantly (96 percent of total) to the industry’s exports include – Software and services (IT services) and IT-enabled services (ITeS) ie business services. Over a period of time, India has established itself as a preferred global sourcing base in these segments and they are expected to continue to fuel growth in the future.

These segments have been evolving over the years into a sophisticated model of operations. Indian IT and ITES companies have created global delivery models (onsite-near shore-offshore), entered into long term engagements with customers, expanded their portfolio of services offerings, built scale, extended service propositions beyond cost savings to quality and innovation, evolved their pricing models and have tried to find sustainable solutions to various issues such as risk management, human capital attraction and retention and cost management.

A key demand driver for the Indian IT services and ITeS industry has been the changing global business landscape which has exerted performance pressures on multinational enterprises.

Some advantages and disadvantages of information technology

Before we can know about all the advantages and disadvantages of information technology, it is essential that we know what information technology is exactly, and why it has it come to play such a important role in our daily lives. Today information technology involves more than just computer literacy; it also takes into account how computers work and how these computers can further be used not just for information processing but also for communications and problem solving tasks as well. Our world today has changed a great deal with the aid of information technology. Things that were once done manually or by hand have now become computerized operating systems, which simply require a single click of a mouse to get a task completed. With the aid of IT we are not only able to stream line our business processes but we are also able to get constant information in 'real time' that is up to the minute and up to date.

The significance of IT can be seen from the fact that it has penetrated almost every aspect of our daily lives from business to leisure and even society. Today personal PCs, cell phones, fax machines, pagers, email and internet have all not only become an integral part of our very culture but also play an essential role in our day to day activities. With such a wide scope for the purpose of this article we shall focus on the impact of the internet in information technology.

Some of the advantages of information technology include:

Globalization - IT has not only brought the world closer together, but it has allowed the world's economy to become a single interdependent system. This means that we can not only share information quickly and efficiently, but we can also bring down barriers of linguistic and geographic boundaries. The world has developed into a global village due to the help of information technology allowing countries like Chile and Japan who are not only separated by distance but also by language to shares ideas and information with each other.

Communication - With the help of information technology, communication has also become cheaper, quicker, and more efficient. We can now communicate with anyone around the globe by simply text messaging them or sending them an email for an almost instantaneous response. The internet has also opened up face to face direct communication from different parts of the world thanks to the helps of video conferencing.

Cost effectiveness - Information technology has helped to computerize the business process thus streamlining businesses to make them extremely cost effective money making machines. This in turn increases productivity which ultimately gives rise to profits that means better pay and less strenuous working conditions.

Bridging the cultural gap - Information technology has helped to bridge the cultural gap by helping people from different cultures to communicate with one another, and allow for the exchange of views and ideas, thus increasing awareness and reducing prejudice.

More time - IT has made it possible for businesses to be open 24 x7 all over the globe. This means that a business can be open anytime anywhere, making purchases from different countries easier and more convenient. It also means that you can have your goods delivered right to your doorstep with having to move a single muscle.

Creation of new jobs - Probably the best advantage of information technology is the creation of new and interesting jobs. Computer programmers, Systems analyzers, Hardware and Software developers and Web designers are just some of the many new employment opportunities created with the help of IT.

Some disadvantages of information technology include:

Unemployment - While information technology may have streamlined the business process it has also crated job redundancies, downsizing and outsourcing. This means that a lot of lower and middle level jobs have been done away with causing more people to become unemployed.

Privacy - Though information technology may have made communication quicker, easier and more convenient, it has also bought along privacy issues. From cell phone signal interceptions to email hacking, people are now worried about their once private information becoming public knowledge.

Lack of job security - Industry experts believe that the internet has made job security a big issue as since technology keeps on changing with each day. This means that one has to be in a constant learning mode, if he or she wishes for their job to be secure.

Dominant culture - While information technology may have made the world a global village, it has also contributed to one culture dominating another weaker one. For example it is now argued that US influences how most young teenagers all over the world now act, dress and behave. Languages too have become overshadowed, with English becoming the primary mode of communication for business

The Premechanical Age: 3000 B.C. - 1450 A.D.


1. Writing and Alphabets--communication.

1. First humans communicated only through speaking and picture drawings.

2. 3000 B.C., the Sumerians in Mesopotamia (what is today southern Iraq) devised cuniform

3. Around 2000 B.C., Phoenicians created symbols

4. The Greeks later adopted the Phoenician alphabet and added vowels; the Romans gave the letters Latin names to create the alphabet we use today.

2. Paper and Pens--input technologies.

1. Sumerians' input technology was a stylus that could scratch marks in wet clay.

2. About 2600 B.C., the Egyptians write on the papyrus plant

3. around 100 A.D., the Chinese made paper from rags, on which modern-day papermaking is based.

3. Books and Libraries: Permanent Storage Devices.

1. Religious leaders in Mesopotamia kept the earliest "books"

2. The Egyptians kept scrolls

3. Around 600 B.C., the Greeks began to fold sheets of papyrus vertically into leaves and bind them together.

4. The First Numbering Systems.

1. Egyptian system:

§ The numbers 1-9 as vertical lines, the number 10 as a U or circle, the number 100 as a coiled rope, and the number 1,000 as a lotus blossom.

2. The first numbering systems similar to those in use today were invented between 100 and 200 A.D. by Hindus in India who created a nine-digit numbering system.

Around 875 A.D., the concept of zero was developed

The Mechanical Age: 1450 - 1840




· Early 1600s, William Oughtred, an English clergyman, invented the slide rule

  • Early example of an analog computer.

· The Pascaline. Invented by Blaise Pascal (1623-62).


1. The First Information Explosion.


1. Johann Gutenberg (Mainz, Germany)

§ Invented the movable metal-type printing process in 1450.

2. The development of book indexes and the widespread use of page numbers.

2. The first general purpose "computers"

o Actually people who held the job title "computer: one who works with numbers."

Slide Rules, the Pascaline and Leibniz's Machine


. The Electromechanical Age: 1840 - 1940.

The discovery of ways to harness electricity was the key advance made during this period. Knowledge and information could now be converted into electrical impulses.

  1. The Beginnings of Telecommunication.
    1. Voltaic Battery.
      • Late 18th century.
    2. Telegraph.
      • Early 1800s.
    3. Morse Code.
      • Developed in1835 by Samuel Morse
      • Dots and dashes.
    • Alexander Graham Bell.
    • 1876
  1. Followed by the discovery that electrical waves travel through space and can produce an effect far from the point at which they originated.
  2. These two events led to the invention of the radio
    • Guglielmo Marconi
    • 1894

D. The Electronic Age: 1940 - Present.




  • · Electronic Numerical Integrator and Computer (ENIAC)
    • 1946.
    • Used vacuum tubes (not mechanical devices) to do its calculations.
      • Hence, first electronic computer.
    • Developers John Mauchly, a physicist, and J. Prosper Eckert, an electrical engineer
      • The Moore School of Electrical Engineering at the University of Pennsylvania
    • Funded by the U.S. Army.
    • But it could not store its programs (its set of instructions)


  1. First Tries.
    • Early 1940s
    • Electronic vacuum tubes.
  2. Eckert and Mauchly.

1. The First High-Speed, General-Purpose Computer Using Vacuum Tubes:
Electronic Numerical Integrator and Computer (ENIAC)

The ENIAC team (Feb 14, 1946). Left to right: J. Presper Eckert, Jr.; John Grist Brainerd; Sam Feltman; Herman H. Goldstine; John W. Mauchly; Harold Pender; Major General G. L. Barnes; Colonel Paul N. Gillon.