CS 432 WEB TECHNOLOGY 11. what is an internet? Internet is a system that lets computers all over the world to communication with each other .The internet is a network of network that connects computers all over the world. 12. “Internet is a business tool” Justify it. The increasingly global business climate and the great extent to which big companies rely computers, the Internet looks like a great vehicle for national and international business communication is certainly cheaper and more flexible than building a private, global computer network from scratch. Nowadays several organizations are running their business through Internet for various purposes. 13. What is meant web page? A web page is a HTML document that is stored in a web server and that has an URL so that it can be accessed via the web. For example: www.annauniv.com is the website name and it consists of several web page like Index.html, syllabus.html etc..... 14. Mention different types of websites There are different types of websites. Some of them are: Portal Web Guides Search Engines Portal: portal is a website that provides numerous free services that enhance the web experience. Web Guides: It is a website which is a system of categories and subcategories that organize links to the web pages. Search Engines: They are widely used websites to find out any specific information. 15. Write the basic structure of HTML? <HTML> <HEAD> <TITLE>< PUT YOUR HOME PAGE NAME> </TITLE> </HEAD> <BODY> <PUT YOUR HOME PAGE DESIGN HERE> </BODY> </HTML> 16. What is meant by tag? HTML tag is a signal to a browser that it should do something other than just throw text upon the screen in the default font. Tags are instruction that is embedded directly into the information text of your document. 17. What is COOKIES? In va Script cookies are a mechanism for storing persistence data on the client in the file called cookies.txt. Because hypertext transport protocol (http) is a stateless protocol, cookies provide a way to maintain information between client requests. 18. Diffentiate Intranet and LAN LAN can add- Internet protocol and service to support the intranet. The LAN protocol like NetBEUL, IPX/SPX supports file sharing printer sharing on a LAN but does not support web browsers and web servers. Hence TCP/IP has to be installed in the LAN. Both LAN and TCP/IP can run simultaneously. AN Intranet also can run on WAN, the network what large organizations use to connect geographically separated locations. 19. What is the use of this operator? The This keyword is use to return the current object .Form returns the current instance of the form object, which is the form object itself. 20. Mention the use of new operator . The new operator can use to create an instance of a user-defined object type of one of the built-in object type Array, Boolean, Date, Function, Math, Number or String. For example: objectName=new objectType(param1 [ param2] ………[ paramn] ) 21. What is URL? URL is also some times called as Universal Resource Locator. Http://www.google.com/index.html Http- specifies the protocol WWW-stands for information retrieval purpose .com-it specifies the domain name 22. Expand ISDN.Give it uses. SDN is Integrated Services Digital Network or cable modem or dial-up telephone modem.ISDN provide very fast connection compare to dial-up Modems (about 40 to 100 times faster). It receives files from web server to local server. 23. What is meant by Container tag? A tag is said to be container tag if it, along with a companion tag sides something. For example <I>,<img>,<hr> 24. What is the tag in HTML form? The tags are: <Form> <Input> <Option> <Select> <Textarea> 25. What is meant by web browser? A web browser is a software tool that computers use to communicate with servers on the Internet Web Browsers enable to download and display the web pages that users requests. Explain the basic principles of internet The Internet is a system that lets computers all over the world to communication with each other .The internet is a network of network that connects computers all over the world. The computers that constitute the internet come in just about every size, shape and type in use. They are spread all over the world in every continent, including Antarctica. According to Society, a volunteer organization, the number of computers on the Internet is almost doubling every year. What is a internet? It’s a Network The computers on the internet can talk to one another are networked; they are connected in some way so that they can exchange information with one another electronically. On the Internet the connections take many different forms. Some computers are directly connected to others with wire or fiber-optic cables. It’s a Loose Organization Although most people think or talk about the Internet as if it were some giant company or club No single entity or organization controls it. The computers are on it are controlled by their owners. Nobody controls the Internet. It’s like a neighborhood where people communicate each other It’s a relaxing phase Internet resources enable users to exchange information in an open public way. These resources provide a forum where users can write and post messages for others users and where they can read messages posted by others. It’s a business tool The increasingly global business climate and the great extent to which big companies rely computers, the Internet looks like a great vehicle for national and international business communication is certainly cheaper and more flexible than building a private, global computer network from scratch. Nowadays several organizations are running their business through Internet for various purposes It’s a Mailbox The most-used Internet Facility is electronic mail also as email. To send a message to an Internet user, anywhere in the world all the sender has to know is the address of the recipient. The sender types up a message in hid or favorite word processing or e-mail software program, hops to the internet, types in the address and send the message on its way. It’s a Information pool Internet is a pool of information. Whatever the information the users in need it can be easily locate and utilized from the internet. It’s a Living thing The Internet is a living thing, growing its own way, at its own pace, perhaps according to any earthly plan. Origin of Internet In 1960’s the Advanced Research project Agency(ARPA) of US Defense department funded a project to connect university to computer scientists and engineers via their computers and telephone lines. After that in late1980’s the barrier of NSFNET for using Military and Research people has been broken away. In 1989,the WWW has emerged for information services and 1990’s the combination of email, the web and online chat booster the use of internet service across National and international prominence. IP Address Each host computer on the internet has a unique number and it is called as internet protocol Address It is in the format of a.b.c.d Where the values of a ,b ,c and d will be in the range of 0 to 255. Internet Service Provider (ISP) An ISP is an organization that provides individuals and other companies access to the Internet and other related services such as websites building and virtual hosting. ISDN is Integrated Services Digital Network or cable modem or dial-up telephone modem.ISDN provide very fast connection compare to dial=up modems (about 40 to 100 times faster).Their cost is also less. To use PPP (Point-to-Point) dial up account, you need a compatible program such as windows Dialup networking program. Uniform Resource Locator (URL) URL is also some times called as Universal Resource Locator . Http://www.google.com/index.html Http- specifies the protocol WWW-stands for the we are using for information retrieval purpose .com-it specifies the domain name.