Learning Networking Course

 

Learning Concept about Computer Networking

 Networking is a combination of smallest to the largest computers and devices that electronically connected together (wired or wireless). Internet is mainly used by Web browsers that retrieve web page information from a server. It is a collection of intranet that communicates with each other. The internet (with a capital”I”) is a collection of public Web sites. The term “internet” is the largest internet, encompassing all publicly available computer networks.

 

To be more familiar and understandable with networking. Here are some terms that associated with networking:

Domain – A group of computer and devices connected to a central server, allowing the group to be managed as a single unit.

E-mail – A means of sending electronic messages from one computer to another over the Internet or other network. An e-mail may contain data other than text, such as image and music files.

FTP – Acronym for File Transfer Protocol. At type of communication protocol used to transfer data from one computer directly to another, usually mediated by a third-party program.

HTTP – Acronym for Hyper Text Transfer Protocol. A type of communication protocol used mainly to transfer Web site information (like HTML files) and components over the Internet or other network to a user’s computer.

Internet – Synonym for World Wide Web. A larger collection of interconnected computer networks that span the globe. The term” (lower case “I”) is actually a name given to a particular collection of computers of computers, like those used by businesses, schools, or the military. The term “Internet” (with a capital “I”) is the largest internet, encompassing all publicly available computer networks.

ISP – Acronym for Internet Service Provider. An ISP sells access to the Internet to large corporations and individuals users alike. Many ISPs also provide hosting services; with allow users to post their own website.

Network – A group of computers and devices connected electronically (wired or wireless).

Workgroup – A collection of computers on the same network identified by a singular name. Having an identifiable workgroup name makes network and sharing resources easier.

 

 Hardware Requirements

There are several different types of networks that you can create. You can even create a network by linking two computers together via the parallel (LTP) printer ports! However, such networks are quite slow by modern standard. Therefore we will focus on the networking hardware that is most common to everyone and readily available at most computer retail outlets.

Hardware Routers can be either wired or wireless, wireless ones usually have antennae. Both wired and wireless routers contain plugs where you can physically connect a computer. Routers are most commonly used in home networks and small office settings. Most routers provide a good layer of protection as well by employ a hardware firewall.

In basic terms, a switch allows for network resource sharing like a router, but it does not provide direct usage of an Internet connection. A switch can allow all computers to use an Internet connection, but one computer must have an external connection to the Internet that must be on at all times, effectively acting as a server. This “always on” computer will have two NICs: one connected to the external Internet connection, and the other connected to the switch sharing the information with everyone else.

Using the Networking and Sharing Centre

Some networking options, such as the ability to connect to a high – speed internet connection are automatic. However, other networking options require you to perform some setup operation. To help make this process easier, Windows include the Networking and Sharing Centre in the Control Panel

       Setting up an Internet Connection

There are two different types of internet connections: dial – up and high – speed (or broadband). A dial- up connection uses a modern to physically connect  your computer to a phone line. Dial- up internet is quite slow compared to modern high-speed, though dial-up Internet can be used almost anywhere in the world where there is telephone service, including cellular service.

The second type of Internet service is high-speed. This type of connection can come via satellite, coaxial connection (cable TV, or over the phone line. High- phone line Internet is called DSL, or Digital Subscriber Line. DSL service can use the phone and internet at the same line.

If you are connecting to the Internet via dial-up, you will have received an e-mail address (which usually doubles as your Internet user name) and password from your ISP. You will also receive a phone number which your computer will dial to “talk” to the server on the other end of the line. If you are connecting via DSL or other types of broadband, you will receive a modem, e-mail address, password, and connection information from your ISP.

To set up a dial-up connection, set up the hardware according to the directions given by your ISP or equipment manufacturer. In the Networking and Sharing Center under the “Change your network settings” heading, click “Set up a new connection or network:

” Most people, especially home users, will only use one Internet connection. Whatever method you use to connect, Windows will remember and make that connection the default one. If you have a laptop or tablet computer, you have probably taken it from place to place and interacted with+ different networks. Windows is capable of remembering many different networks that it has joined. If you take your computer to a library with wireless Internet access and sign onto the network with a password, Window can recall the credentials and sign you in automatically.

If you want to remove yourself from a wireless network when using a portable computer, you likely have a switch or button on your computer to turn off the wireless card. However, if you want to disconnect from one wireless connection (so you could join another one for example), click the wireless icon in the System Tray:

                                                   

Locate the wireless network which you are currently using, click it to highlight it, and then click Disconnect.

 

 To summarize, networking system uses many different types of electronic connecting devices to connect to internet. It can be wired or wireless devices. Many upcoming internet users today prefer wireless networking technology. Wired and Wireless technologies have come a long way, and it help us to communicate on increasingly capable networks.