Internet. In this section: Links: Video: Did You Know - The power of the internet. Concepts > Internet
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1 Internet is the world s largest public computer network, a network of networks that provides a vast array of services to individuals, businesses, and organizations around the world. In this section: Internet Technologies Web Technologies Concepts > Internet Cloud Computing Web Resources Video: Did You Know - The power of the internet
2 Internet Technologies work together to provide information and services over the Internet, including a variety of protocols, hardware, and software. In this section: Internet Service Provider (ISP) Domain Name System (DNS) Internet History Client/Server Port Internet Backbone Peer-to-Peer (P2P) Voice over IP (VoIP) TCP/IP Router Internet2 Concepts > Internet > Internet Technologies Video: IT Crowd: The Internet
3 Internet History Internet history is relatively short, dating back only to around In that time, the Internet has had as great an impact as any invention, and its story has only just begun. Concepts > Internet > Internet Technologies > Internet History Video: Internet & Web Pioneers: Joseph Hardin
4 Internet Backbone The Internet backbone refers to the main Internet pathways and connections, made up of the many national and international communication networks that are owned by major telecom companies such as Verizon, AT&T, and Sprint the same companies and networks that provide telephone service. Concepts > Internet > Internet Technologies > Internet Backbone
5 TCP/IP The protocols on which the Internet is based are the Transmission Control Protocol (TCP) and Internet Protocol (IP); together referred to as TCP/IP. Although Internet hardware and software are the most visible components, TCP/IP works behind the scenes to allow many different types of networks and devices to join together in an immense global network. Concepts > Internet > Internet Technologies > TCP/IP Video: Kleinrock: TCP/IP and packet switching
6 Internet Service Provider (ISP) A company that provides individuals and organizations with access to the Internet is called an Internet service provider (ISP). ISPs work as liaisons between Internet users and the telecommunications companies that own the Internet backbones, providing a variety of services at varying monthly rates. Concepts > Internet > Internet Technologies > Internet Service Provider (ISP)
7 Client/Server Client/server is a network architecture in which one computer or program (the client) makes a service request from another computer or program (the server), which provides the service. Concepts > Internet > Internet Technologies > Client/Server
8 Peer-to-Peer (P2P) Peer-to-peer (P2P) is a network architecture that does not utilize a central server but facilitates communication directly between clients with computers acting as both client and server. Concepts > Internet > Internet Technologies > Peer-to-Peer (P2P)
9 Router A router is a network device that manages network traffic by evaluating messages and routing them over the fastest path to their destination. Each packet makes its way across the Internet by traveling from router to router, each router examining incoming data packets and intelligently sending them toward their destination. Video: How the Internet Works in 5 Minutes Concepts > Internet > Internet Technologies > Router
10 Domain Name System (DNS) The Internet is a vast and complex system with billions of addresses, names, and servers. Keeping track of all the names and numbers is the responsibility of the DNS. The Domain Name System (DNS) maintains a database of all domain names and IP addresses used on the Internet and acts like a phonebook, supplying information to Internet nodes and routers working to get data packets to their destination. Concepts > Internet > Internet Technologies > Domain Name System (DNS) Video: DNS "Domain Name System" Basics
11 Port In a computer network context, a port is an address used by clients and servers that is associated with a specific service. Port numbers can be used to track user activity on the Internet and can also be used by hackers to gain access to computer systems. Concepts > Internet > Internet Technologies > Port
12 Voice over IP (VoIP) Voice over IP (VoIP) refers to technologies that support voice communications using the Internet Protocol over data networks. Businesses are migrating to VoIP, combining voice and data networks into one easy-to-manage digital network. Home users are saving money with VoIP by connecting to phone services provided over highspeed Internet connections. Mobile phone users are able to save monthly minutes by talking over Wi-Fi connections. Concepts > Internet > Internet Technologies > Voice over IP (VoIP) Video: Cisco Unified Communications
13 Internet2 Scientists and network engineers are exploring new technologies to develop the next generation Internet to support increasing numbers of users and applications at higher speeds. Internet2 is a research and development consortium led by more than 200 U.S. universities and supported by partnerships with industry and government to develop and deploy advanced network applications and technologies for tomorrow s Internet. Video: ARTS: Internet2 and Music Distance Education Concepts > Internet > Internet Technologies > Internet2
14 Internet Technologies Terms Internet Internet hosts Internet Technologies Internetwork Internet backbone Network service providers (NSPs) Points of presence (POPs) Transmission Control Protocol (TCP) Internet Protocol (IP) Packet Packet-switching network IP address Internet Service Provider (ISP) Cable modem Concepts > Internet > Internet Technologies > See your ebook for more information about these terms
15 Internet Technologies Terms continued Cellular data connection Digital subscriber line (DSL) Dial-up Digital satellite service (DSS) Broadband over power line (BPL) Client/Server Peer-to-Peer (P2P) BitTorrent Router Domain Name System (DNS) Port Voice over IP (VoIP) Unified communications Internet2 National LambdaRail (NLR) Concepts > Internet > Internet Technologies > See your ebook for more information about these terms
16 Cloud Computing delivers a variety of computing resources from the Internet as a service for free or for a fee, to relieve users from the burden of installing, maintaining, and securing those resources themselves. In this section: Cloud Services Cloud Models Video: What is Cloud Computing? Concepts > Internet > Cloud Computing
17 Cloud Services Cloud Services include computing services provided over the Internet in three categories: infrastructure, platform, and software. Cloud computing has been around in business environments for over a decade, referred to as Software as a Service or SaaS. Video: Software as a Service overview Concepts > Internet > Cloud Computing > Cloud Services
18 Cloud Models There are several cloud models that serve various environments, including private clouds, community clouds, public clouds, and hybrid clouds. While most users are familiar with public cloud services like Google Docs or icloud, they may not be familiar with other models of importance to businesses and organizations. Concepts > Internet > Cloud Computing > Cloud Models
19 Cloud Computing Terms Cloud computing Cloud services Cloud models Concepts > Internet > Cloud Computing > See your ebook for more information about these terms
20 Intellectual Property Rights concern the legal ownership and use of intellectual property, such as software, music, movies, data, and information. In this section: Piracy Plagiarism Digital Rights Management (DRM) Digital Millennium Copyright Act (DMCA) Video: Too Much Copyright Issues > Intellectual Property Rights
21 Intellectual Property Rights Protection Copyright Trademark Trade secret Patent Description Protects the words, music, and other expressions for the life of the copyright holder plus 70 years. The fair use doctrine describes when and how copyrighted material can be legally used. The Digital Millennium Copyright Act provides global copyright protection. Protects a unique symbol or word used by a business to identify a product or service. Protects secrets or proprietary information of individuals and organizations as long as the trade secret is adequately protected. Protects an invention by giving the patent holder a monopoly on the use of the invention for 20 years after the patent application was submitted. Issues > Intellectual Property Rights
22 Piracy Piracy involves the illegal copying, use, and distribution of digital intellectual property, such as software, music, and movies. The prolific amount of piracy is forcing technology industries and governments to react with repressive technologies and legislation that some feel inhibit the natural evolution of culture. Video: Fake Apple stores found in China Issues > Intellectual Property Rights > Piracy
23 Plagiarism Giving credit where credit is due and respecting intellectual property rights are foundational principles of ethical behavior. Plagiarism involves taking credit for someone else s intellectual property, typically a written idea, by claiming it as your own. Issues > Intellectual Property Rights > Plagiarism Video: A Quick Guide to Plagiarism
24 Digital Rights Management (DRM) Digital rights management, or DRM, is technology that protects digital forms of intellectual property by restricting the number of devices and applications on which a file can be opened and the number of times that the file can be copied and burned to disk. There is concern that restrictions on digital products may become tighter, pushing DRM onto hardware, so that it is impossible to make copies of any digital media. Issues > Intellectual Property Rights > Digital Rights Management (DRM) Video: Defective by Design
25 Digital Millennium Copyright Act (DMCA) The Digital Millennium Copyright Act (DMCA) is a U.S. copyright law designed to reduce illegal digital media copying by criminalizing the production, distribution, and use of technologies designed to circumvent DRM technologies. When laws oppose common public practice, it is common for public unrest to grow around the issue. Issues > Intellectual Property Rights > Digital Millennium Copyright Act (DMCA)
26 Intellectual Property Rights Terms Intellectual Property Copyright Trademark Trade secret Patent Piracy Plagiarism Digital Rights Management (DRM) Digital Millennium Copyright Act (DMCA) Issues > Intellectual Property Rights > See your ebook for more information about these terms
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