FEW TERM OF INTERNET

FEW TERM OF INTERNET

IP Address ( Internet Protocol Address)

An IP Address is a usually numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: network interface identification and location addressing.
In order for you to receive snail mail at home the sending party must have your correct mailing address (IP address) in your town (network) or you do not receive letter. The same is true for all equipment on the internet. Without this specific address, information cannot be received.

Domain Name System (DNS):

DNS implements a distributed database to store this name and address information for all public hosts on the Internet. DNS allows the IP address to be translated to words. It is much easier for us to remember a word than a series of numbers. The same is true for email addresses.
For example, it is much easier for you to remember a web address name such as mystudyroom.com.np  than it is to remember 192.168.1.1 or in the case of email it is much easier to remember email@gmail.com than email@192.168.1.1

Client-Server Architecture

A network architecture in which each computer or process on the network is either a client or a server. Servers are powerful computers or processes dedicated to managing disk drives (file servers), printers (print servers), or network traffic (network servers). Clients are PCs or workstations on which users run applications. Clients rely on servers for resources, such as files, devices, and even processing power.
The Internet revolves around the client-server architecture. Your computer runs software called the client and it interacts with software known as the server located at a remote computer. The client is uses a browser such as Internet Explorer or Mozilla. User type web address to open a site like mystudyroom.com.np, user's request is sent to the website's server and then users are able to view the website. This is how client and server work together.

World Wide Web (WWW)

WWW is collection of internet resources (such as FTP, telnet, Usenet), hyperlinked text, audio, and video files, and remote sites that can be accessed and searched by browsers based on standards such as HTTP and TCP/IP. Also called the web as an easier way to access information scattered across the internet.
The WWW is a spiderweb-like interconnection of millions of pieces of information located on computers around the world. Web documents use hypertext, which incorporates text and graphical links to other documents and files on Internet-connected computers.

Static and Dynamic Pages

Web pages can be either static or dynamic. "Static" means unchanged or constant, while "dynamic" means changing or lively. Therefore, static Web pages contain the same prebuilt content each time the page is loaded, while the content of dynamic Web pages can be generated on-the-fly.
Standard HTML pages are static Web pages. They contain HTML code, which defines the structure and content of the Web page. Each time an HTML page is loaded, it looks the same. The only way the content of an HTML page will change is if the Web developer updates and publishes the file.
Other types of Web pages, such as PHP, ASP, and JSP pages are dynamic Web pages. These pages contain "server-side" code, which allows the server to generate unique content each time the page is loaded. For example, the server may display the current time and date on the Web page. It may also output a unique response based on a Web form the user filled out. Many dynamic pages use server-side code to access database information, which enables the page's content to be generated from information stored in the database. Websites that generate Web pages from database information are often called database-driven websites.
You can often tell if a page is static or dynamic simply by looking at the page's file extension in the URL, located in the address field of the Web browser. If it is ".htm" or ".html," the page is probably static. If the extension is ".php," ".asp," or ".jsp," the page is most likely dynamic. While not all dynamic Web pages contain dynamic content, most have at least some content that is generated on-the-fly.

Advantages of static websites

• Quick to develop website
• Cheap to develop and host website

Disadvantages of static websites

• Requires web development expertise to update site
• Site not as useful for the user
• Content can get stagnant

Advantages of dynamic websites

• Much more functional website
• Much easier to update
• New content brings people back to the site and helps in the search engines
• Can work as a system to allow staff or users to collaborate

Disadvantages of dynamic websites

• Slower / more expensive to develop
• Hosting costs a little more