introduction to the internet and world wide web pdf

Introduction To The Internet And World Wide Web Pdf

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But why is HTML necessary? Why is a browser needed to display HTML documents, and what is the role of the server? These questions, as well as simple descriptions of Java, scripting, multimedia and other Web-associated technologies, form the subject of this chapter.

WWW Overview

Regardless of whether you grew up with computers or were introduced to them in adulthood, it is difficult now to imagine a world in which the internet does not exist. We rely on the internet to manage our money, search for jobs, represent ourselves professionally, and keep in contact with loved ones across the country or even across the world. We use the internet to research, to learn, and to enable ourselves to complete projects we would not know how to do without looking up instructions. Businesses use the internet to collaborate across offices and even across the hall. Financial transactions are handled in seconds. Communication is instantaneous.

World Wide Web, which is also known as a Web, is a collection of websites or web pages stored in web servers and connected to local computers through the internet. These websites contain text pages, digital images, audios, videos, etc. Users can access the content of these sites from any part of the world over the internet using their devices such as computers, laptops, cell phones, etc. The WWW, along with internet, enables the retrieval and display of text and media to your device. These links are electronic connections that link related pieces of information so that users can access the desired information quickly. Hypertext offers the advantage to select a word or phrase from text and thus to access other pages that provide additional information related to that word or phrase.

Introduction to the Internet and World Wide Web.

Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. The recent growth of the Internet and the World Wide Web makes it appear that the world is witnessing the arrival of a completely new technology. In fact, the Web—now considered to be a major driver of the way society accesses and views information—is the result of numerous projects in computer networking, mostly funded by the federal government, carried out over the last 40 years. The projects produced communications protocols that define the format of network messages, prototype networks, and application programs such as browsers. This research capitalized on the ubiquity of the nation's telephone network, which provided the underlying physical infrastructure upon which the Internet was built.

The Web gives users access to a vast array of documents that are connected to each other by means of hypertext or hypermedia links—i. Hypertext allows the user to select a word or phrase from text and thereby access other documents that contain additional information pertaining to that word or phrase. Hypermedia documents feature links to images, sounds, animations, and movies. Browser software allows users to view the retrieved documents. Their text-based Web browser was made available for general release in January The World Wide Web gained rapid acceptance with the creation of a Web browser called Mosaic , which was developed in the United States by Marc Andreessen and others at the National Center for Supercomputing Applications at the University of Illinois and was released in September

The term is often mistakenly used as a synonym for the Internet itself, but the Web is a service that operates over the Internet, just as email and Usenet also do. The history of the Internet dates back significantly further than that of the World Wide Web. The concept of a global information system connecting homes is prefigured in " A Logic Named Joe ", a short story by Murray Leinster , in which computer terminals, called "logics", are present in every home. Although the computer system in the story is centralized, the story anticipates a ubiquitous information environment similar to the Web. The cultural impact of the Web was imagined even further back in a short story by E. Forster , " The Machine Stops ", first published in Berners-Lee's contract in was from June to December, but in he returned to CERN in a permanent role, and considered its problems of information management: physicists from around the world needed to share data, yet they lacked common machines and any shared presentation software.


the evolution of the Internet and the World Wide Web. – what Web is and why it's having such an impact among. Internet-based and traditional.


1. Introduction to the World Wide Web

The World Wide Web is the universe of network-accessible information, an embodiment of human knowledge. In simple terms, The World Wide Web is a way of exchanging information between computers on the Internet, tying them together into a vast collection of interactive multimedia resources. Internet and Web is not the same thing: Web uses internet to pass over the information. World Wide Web came into existence as a proposal by him, to allow researchers to work together effectively and efficiently at CERN.

The introduction of the World Wide Web has revolutionized the applications of the computer and the Internet in the medical field. The Web provides an easy and cost-effective way of retrieving medical information and a more flexible way of communicating with patients and colleagues. Family practice is a specialty in which care is given to persons as individuals and members of families regardless of their age, gender or specific problems. To provide quality family practice, a family physician should be a good communicator, a critical thinker, a resource and information manager, a life-long learner, a care giver and a community advocate. Providing such high quality care requires that family practice be an information-sensitive specialty.

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North Dakota. Северная Дакота. - Северная Дакота. Разумеется, это кличка. - Да, но я на всякий случай заглянул в Интернет, запустив поиск по этим словам. Я не надеялся что-либо найти, но наткнулся на учетную запись абонента.

Преступники, террористы и шпионы, которым надоело прослушивание их телефонов, с радостью встретили это новое средство глобальной коммуникации. Электронная почта соединила безопасность обычной почты со скоростью телефонной связи. С тех пор как сообщения стали передаваться по подземным волоконно-оптическим линиям, а не с помощью радиоволн, они оказались полностью защищенными от перехвата - таков по крайней мере был замысел. В действительности перехват электронных писем, передвигаемых по Интернету, был детской забавой для технических гуру из АНБ. Интернет не был создан, как считали многие, в эру домашних персональных компьютеров. Он появился тремя десятилетиями ранее благодаря усилиям специалистов из министерства обороны и представлял собой громадную сеть компьютеров, призванных обеспечить безопасность правительственной связи на случай ядерной войны.

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Постучите тихонько. Я найду свободную комнату и покажу вам Испанию с такой стороны, что вам будет что вспомнить, - И она сладко причмокнула губами. Беккер изобразил улыбку. - Я должен идти.

ГЛАВА 59 Сьюзан протянула руку, и коммандер Стратмор помог ей подняться по лестнице в помещение шифровалки. А перед глазами у нее стоял образ Фила Чатрукьяна, его искалеченного и обгоревшего тела, распростертого на генераторах, а из головы не выходила мысль о Хейле, притаившемся в лабиринтах шифровалки.

4 comments

Garhgradanov1974

Commercial activity on the Internet has only recently been possible.

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Lauwinddisxy1996

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Mindferlantfo

The Web was originally conceived and developed to meet the demand for automated information-sharing between scientists in universities and institutes around the world.

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Antoine M.

Introduction to the Internet and World Wide Web. Richard C. Van Sluyters. A family plans a ski vacation in Utah, and their year-old daughter browses the.

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