PfoOmNIM/hqdefault.jpg' alt='Visual Basic Video Tutorial 40 Videos' title='Visual Basic Video Tutorial 40 Videos' />Basic Networking Tutorial. Top 3 Products Services. Dated Aug. 1. 2, 2. Related Categories. Networking In General. What is a computer Network A network is any collection of independent computers that communicate with one another over a shared network medium. A computer network is a collection of two or more connected computers. When these computers are joined in a network, people can share files and peripherals such as modems, printers, tape backup drives, or CD ROM drives. When networks at multiple locations are connected using services available from phone companies, people can send e mail, share links to the global Internet, or conduct video conferences in real time with other remote users. When a network becomes open sourced it can be managed properly with online collaboration software. As companies rely on applications like electronic mail and database management for core business operations, computer networking becomes increasingly more important. However, in this day and age simply having internet is not enough, you need to be able to get high speeds that all companies from Verizon to Megapath should be able to provide. Visual Basic Video Tutorial 40 Videos' title='Visual Basic Video Tutorial 40 Videos' />Every network includes At least two computers Server or Client workstation. Networking Interface Cards NICA connection medium, usually a wire or cable, although wireless communication between networked computers and peripherals is also possible. Network Operating system software, such as Microsoft Windows NT or 2. Novell Net. Ware, Unix and Linux. Types of Networks LANs Local Area NetworksA network is any collection of independent computers that communicate with one another over a shared network medium. LANs are networks usually confined to a geographic area, such as a single building or a college campus. Assessment of the Right heart. The right heart assessment clinically and echocardiographically is not a very important part of mainstream cardiology. Adobe Creative Cloud for education provides educational institutions with industryleading creative tools and centralized software management and deployment. Watch this step by step video tutorial to learn how to knit a scarf a scarf in just 30 minutes Using the method of Arm Knitting allows you to knit using your arms as. Add-Two-Numbers-in-Visual-Basic.NET-Step-4-Version-2.jpg/aid1533368-v4-728px-Add-Two-Numbers-in-Visual-Basic.NET-Step-4-Version-2.jpg' alt='Visual Basic Video Tutorial 40 Videos' title='Visual Basic Video Tutorial 40 Videos' />Tableau provides a variety of training options to help you get the most out of your data. See our comprehensive list of training videos and Tableau tutorials. LANs can be small, linking as few as three computers, but often link hundreds of computers used by thousands of people. The development of standard networking protocols and media has resulted in worldwide proliferation of LANs throughout business and educational organizations. WANs Wide Area NetworksWide area networking combines multiple LANs that are geographically separate. This is accomplished by connecting the different LANs using services such as dedicated leased phone lines, dial up phone lines both synchronous and asynchronous, satellite links, and data packet carrier services. Wide area networking can be as simple as a modem and remote access server for employees to dial into, or it can be as complex as hundreds of branch offices globally linked using special routing protocols and filters to minimize the expense of sending data sent over vast distances. Internet. The Internet is a system of linked networks that are worldwide in scope and facilitate data communication services such as remote login, file transfer, electronic mail, the World Wide Web and newsgroups. With the meteoric rise in demand for connectivity, the Internet has become a communications highway for millions of users. The Internet was initially restricted to military and academic institutions, but now it is a full fledged conduit for any and all forms of information and commerce. Internet websites now provide personal, educational, political and economic resources to every corner of the planet. Intranet. With the advancements made in browser based software for the Internet, many private organizations are implementing intranets. An intranet is a private network utilizing Internet type tools, but available only within that organization. J-ZkqWlVKk/hqdefault.jpg' alt='Visual Basic Video Tutorial 40 Videos' title='Visual Basic Video Tutorial 40 Videos' />For large organizations, an intranet provides an easy access mode to corporate information for employees. MANs Metropolitan area NetworksThe refers to a network of computers with in a City. VPN Virtual Private NetworkVPN uses a technique known as tunneling to transfer data securely on the Internet to a remote access server on your workplace network. Using a VPN helps you save money by using the public Internet instead of making longdistance phone calls to connect securely with your private network. There are two ways to create a VPN connection, by dialing an Internet service provider ISP, or connecting directly to Internet. Categories of Network Network can be divided in to two main categories Peer to peer. Server based. In peer to peer networking there are no dedicated servers or hierarchy among the computers. All of the computers are equal and therefore known as peers. Normally each computer serves as ClientServer and there is no one assigned to be an administrator responsible for the entire network. Peer to peer networks are good choices for needs of small organizations where the users are allocated in the same general area, security is not an issue and the organization and the network will have limited growth within the foreseeable future. The term Clientserver refers to the concept of sharing the work involved in processing data between the client computer and the most powerful server computer. The clientserver network is the most efficient way to provide Databases and management of applications such as Spreadsheets, Accounting, Communications and Document management. Network management. Centralized file storage. The clientserver model is basically an implementation of distributed or cooperative processing. At the heart of the model is the concept of splitting application functions between a client and a server processor. The division of labor between the different processors enables the application designer to place an application function on the processor that is most appropriate for that function. This lets the software designer optimize the use of processors providing the greatest possible return on investment for the hardware. Clientserver application design also lets the application provider mask the actual location of application function. The user often does not know where a specific operation is executing. The entire function may execute in either the PC or server, or the function may be split between them. This masking of application function locations enables system implementers to upgrade portions of a system over time with a minimum disruption of application operations, while protecting the investment in existing hardware and software. The OSI Model Open System Interconnection OSI reference model has become an International standard and serves as a guide for networking. This model is the best known and most widely used guide to describe networking environments. Vendors design network products based on the specifications of the OSI model. It provides a description of how network hardware and software work together in a layered fashion to make communications possible. It also helps with trouble shooting by providing a frame of reference that describes how components are supposed to function. There are seven to get familiar with and these are the physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and the application layer. Physical Layer, is just that the physical parts of the network such as wires, cables, and there media along with the length. Also this layer takes note of the electrical signals that transmit data throughout system. 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