What is the Internet? The Internet is a network of networks. The Internet protocols allow many different network technologies from local area networks (LANs) to wide area networks (WANs) to be interconnected seamlessly for communication among many different types of applications. The unique technical capabilities of the TCP/IP protocols allow the Internet to become very large, but still be manageable.
How did the Internet start? The Internet began in 1969, created by Department of Defense researchers and contractors working for the Advanced Research Project Agency (ARPA). The original network was called the ARPAnet. ARPAnet use was restricted to researchers who had ARPA contracts. The ARPAnet technology was introduced to a larger audience by the efforts of computer scientists and engineers through Cypressnet and CSnet. CSnet was the National Science Foundation's first TCP/IP Internet service offering started in the early '80s and it proved to be very successful. As the demand for ARPAnet grew, ARPA handed the baton to the NSF, which combined the networking needs of its suite of national supercomputer centers with a backbone service for the emerging academic regional networks. Thus the NSFnet was born in 1985.
Who runs the Internet? The Internet is a cooperative endeavor much like the worldwide telephone network. No single organization is responsible for all aspects of the Internet.
What is the World Wide Web (WWW)? The World Wide Web is an Internet-based distributed system of information servers (sources) and information clients (subscribers). The Web provides a point-and-click interface to text, images, sound and movies that has proven to be powerfully intuitive and easy-to-use.
What is a Home Page? A home page is a Web document at the beginning of a set of Web documents, or pages, that comprise a single, distinct Web service. People advertise their web home page as the natural starting point for clients to browse their server. Any web server may have many home pages and web pages may be cross-linked in arbitrary ways, but home pages are the signposts of the World Wide Web and the directions that Internet users pass to each other to navigate the Web.
Is the Internet secure? On a broad level, the Internet itself is not very secure today. However, Internet access on an individual basis is as secure as each customer makes it. Customers need to implement security options such as encryption and firewalls to protect their data and internal networks.
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