As computers become more frequently used in business, government and other areas of life, the potential for computer-related careers will continue to grow and the career paths in computer-related fields will become more diverse.The career opportunities for computer science graduates can be classified into eight categories: programming and software development, information systems operation and management, telecommunications and networking, computer science research, web and Internet, graphics and multimedia, training and support, and computer industry specialists.

Robert Thomas, an engineer at BBN Technologies developed the first known computer virus in the year 1971. The first virus was christened as the “Creeper” virus, and the experimental program carried out by Thomas infected mainframes on Advanced Research Projects Agency Network. The teletype message displayed on the screens read, “I’m the creeper: Catch me if you can.”  But the original wild computer virus, probably the first one to be tracked down in the history of computer viruses was “Elk Cloner.” The Elk Cloner infected Apple II operating systems through floppy disks. The message displayed on infected Apple Computers was a humorous one. The virus was developed by Richard Skrenta, a teenager in the year 1982.

Internet is an acronym for International Networks. It is a system of global computer networks that provide variety of information and communication facilities, consisting of interconnected networks and as well allow users to send and receive information from other computers.The internet allows people to share information and communicate with one another, no matter where they are located in the world. These computers can be in homes, schools, companies, etc.

We are now living in the information age where economic power is measured by the level of technological development and the extent of use of Information and Communication Technology . The developed countries of the world use ICT tools extensively, while most developing countries are lagging behind in this regard. This is primarily the reason for the existing phenomenon of digital divide, and it will continue to be so except drastic measures are taken to address the causes of digital divide.

A spreadsheet is the computer equivalent of a paper ledger sheet. It consists of a grid which is made up of columns and rows. A spreadsheet captures, displays and makes the manipulation of data easy. One advantage of using spreadsheet package is that you can experiment with numbers without having to redo all the calculations. A spreadsheet is immediately updated if one of the entries is changed.

A worksheet, in its original meaning is a sheet of paper with columns and rows on which one performs work. They come in many forms, most commonly associated with school work, tax forms, accounting or other business environment.

A graph is a pictorial representation or a diagram that represents data or values in an organized manner. The points on the graph often represent the relationship between two or more things.