Brief history of internet
The Internet originated in the late 1960s when the United States Defense Department developed ARPAnet (Advanced Research Projects Agency network), an experimental network of computers designed to withstand partial outages such as a bomb attack (indiana)
The Internet originated in the late 1960s when the United States Defense Department developed ARPAnet (Advanced Research Projects Agency network), an experimental network of computers designed to withstand partial outages such as a bomb attack (indiana)
How Does the Internet Work?
To understand the Internet, it helps to look at it as a system with two main components. The first of those components is hardware and the second is Protocols. Protocal are sets of rules that machines follow to complete tasks. Without a common set of protocols that all machines connected to the Internet must follow, communication between devices couldn't happen (howstuffworks).
What Kinds of Information are Available in the internet?
In addition to text documents, the Internet makes available graphics files (digitized photographs and artwork), and even files that contain digitized sound and video. Through the Internet, you can download software, participate in interactive forums where users post and respond to public messages, and even join "chats," in which you and other users type (and, in some cases, speak) messages that are received by the chat participants instantly (centerspan).
How Do People Use the Internet?
Among the ways that users like yourself are taking advantage of the Internet are:
- Sharing research and business data among colleagues and like-minded individuals.
- Communicating with others and transmitting files via E-mail.
- Requesting and providing assistance with problems and questions.
- Marketing and publicizing products and services.
- Gathering valuable feedback and suggestions from customers and business partners.(centerspan)
Electronic mail, most commonly referred to as email or e-mail. (wikipedia)
WWW
The World Wide Web (abbreviated as WWW or W3, commonly known as the web), is a system of interlinked hypertext documents accessed via the Interent. (wikipedia)
Question: Differentiate between WWW and Internet?
URL
URL stands for Uniform Resource Locator. A URL is a formatted text string used by Web browsers, email clients and other software to identify a network resource on the Internet. Network resources are files that can be plain Web pages, other text documents, graphics, or programs. (about)
Web Browser
A web browser (commonly referred to as a browser) is a software application for retrieving, presenting and traversing information resources on the WWW. The major web browsers are Google Chrome, Firefox, Internet Explorer, Opera, and Safari. (wikipedia)
Question: what is web browsing?
Online searching
Online search is the process of interactively searching for and retrieving requested information via a computer from databases that are online. (wikipedia). Most people use search engines to search various information available in the web. On other hand, a search engines is a program/software that searches for specified keywords and returns the list of documents.The following are the some of the more popular search engines such as Google, Yahoo. Alta Vista, Mamma etc:
When to use Search engines??
• When you want very targeted or obscure topics;
• When you want multi-concept queries and;
• When you want to searches for specific people, sites, organisations;
• When you want to retrieve a large number of documents on your topic etc
Searching techniques
Search Engine
|
Boolean functionality
|
Proximity
|
Truncation
|
Limits
|
Google
|
-, OR
|
"Phrase"
|
No
|
Title, domain, filetype, PDF
|
AlltheWeb
|
+, - [and, or, and not, ( ) in adv].
|
"Phrase"
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No
|
Title, PDF, domain, content type
|
AltaVista
|
AND, OR, AND NOT, ( ), +, -
|
"Phrase",
|
Yes *
|
Title, date, domain
|
Lycos
|
-, OR
|
"Phrase"
|
No
|
Title, domain, site
|
MSN Search
|
AND, OR, NOT
|
"Phrase"
|
No
|
Title, domain, contain type
|
Here is a link which will help you to gain skills on online searching. Please read.
Downloading
The process of moving computer data from one location to another. But when we are referring to INTERNET then downloading means transferring information or data from the internet to your computer. You can download pictures, files, software etc from the Internet and save it into your own computer.
Question: what is uploading?
