In many countries around the world, businesses and educational institutions make up a large percentage of society. These places need a way to be able to share information and communicate within the company or school. They must also be able to share business plans or other information with outside organizations. Computers were initially developed for individual use only. The importance of data sharing forced manufacturers to create techniques for connecting computers and this was the beginning of computer networks. Soon the importance of networks was realized in business organizations and today almost every organization in the world has its own computer network. Educational institutions are also following suit as networking serves as an effective management method and can also help improve students' knowledge. Computer networks are becoming the primary source of operation and communication for businesses and educational institutions. To learn more about computer networks, it is first important to know the Internet. The Internet was invented in the early 1960s by people who saw the potential for computers to share information and searches. In his book Defining Moments the Internet Revolution (2005), Hillstrom notes that: A researcher at the Massachusetts Institute of Technology named JCR Licklider proposed a plan for a global network of computers and approached the Defense Advanced Research Projects Agency ( DARPA) to develop it. In 1966, Lawrence Roberts of MIT joined DARPA to develop its plans for the ARPANET. The ARPANET was the world's first computer network. It was brought online in 1969 under a contract from the Advanced Research Projects Agency (ARPA). The Internet is in the middle of paper...in government offices, small businesses as well as large corporations. Network technicians ensure that the design of a computer system allows all components, such as computers, network, and software, to work properly together. They also resolve issues reported by users and automated network monitoring systems and make recommendations for future system upgrades. Many of these workers are also responsible for maintaining the security of networks and systems (Bureau of Labor, 2009). Without the Internet, businesses and educational institutions would not be able to operate as well as they do today and the volume of business they conduct would be less. not be that great. Computer networks make everything easier and more profitable for everyone. The Internet and computer networks may well be the most effective tools in the everyday world..