Internet Engineering Task Force

The Internet Engineering Task Force (IETF) develops and promotes Internet standards, cooperating closely with the W3C and ISO/IEC standard bodies and dealing in particular with standards of the TCP/IP and Internet protocol suite. It is an open standards organization, with no formal membership or membership requirements. All participants and leaders are volunteers, though their work is usually funded by their employers or sponsors; for instance, the current chairperson is funded by VeriSign and the U.S. government's.

BBN initially chose a rugged zed version of Honeywell's DDP-516 computer to build the first-generation IMP. The 516 was originally configured with 24 kB of core memory (expandable) and a 16 channel Direct Multiplex Control (DMC) direct memory access control unit. Custom interfaces were used to connect, via the DMC, to each of the hosts and modems. In addition to the lamps on the front panel of the 516 there was also a special set of 24 indicator lights to show the status of the IMP communication channels. Each IMP could support up to four local hosts and could communicate with up to six remote IMPs over leased lines.

Hypertext Transfer Protocol

Hypertext Transfer Protocol (HTTP) is a communications protocol. Its use for retrieving inter-linked text documents (hypertext) led to the establishment of the World Wide Web.

HTTP development was coordinated by the World Wide Web Consortium and the Internet Engineering Task Force (IETF), culminating in the publication of a series of Requests for Comments (RFCs), most notably RFC 2616 (June 1999), which defines HTTP/1.1, the version of HTTP in common use.

HTTP is a request/response standard between a client and a server. A client is the end-user, the server is the web site. The client making a HTTP request—using a web browser, spider, or other end-user tool—is referred to as the user agent. The responding server—which stores or creates resources such as HTML files and images—is called the origin server. In between the user agent and origin server may be several intermediaries, such as proxies, gateways, and tunnels. HTTP is not constrained to using TCP/IP and its supporting layers, although this is its most popular application on the Internet. Indeed HTTP can be "implemented on top of any other protocol on the Internet, or on other networks. HTTP only presumes a reliable transport; any protocol that provides such guarantees can be used."

Publishing Web pages

Web page production is available to individuals outside the mass media. In order to publish a Web page, one does not have to go through a publisher or other media institution, and potential readers could be found in all corners of the globe.

Many different kinds of information are available on the Web, and for those who wish to know other societies, cultures, and peoples, it has become easier.

The increased opportunity to publish materials is observable in the countless personal and social networking pages, as well as sites by families, small shops, etc., facilitated by the emergence of free Web hosting services.

Head and Brain Malformations

Most brain malformations begin long before a baby is born. Something damages the developing nervous system or causes it to develop abnormally. Sometimes it's a genetic problem. In other cases, exposure to certain medicines, infections or radiation during pregnancy interferes with brain development. Types of brain malformations include missing parts of the brain, abnormal growth of certain parts of the brain, and incomplete division of the brain.

There are head malformations that do not involve the brain. Craniofacial disorders are the result of abnormal growth of soft tissue and bones in the face and head. It's common for new babies to have slightly lopsided heads, but parents should watch the shape of their baby's head for possible problems.

Wounds

Wounds include cuts, scrapes, scratches and punctured skin. They often occur as a result of an accident or injury, but surgical incisions, sutures, and stitches also cause wounds. Minor wounds usually aren't serious, but even cuts and scrapes require care. To avoid infection and aid healing

* Apply pressure with a clean cloth to stop bleeding
* Clean the wound with water
* Use an antibiotic ointment to prevent infection
* Bandage the wound if it's in an area that might get dirty
* Watch for swelling and redness
* Get a tetanus booster if you are due for one

Serious and infected wounds require medical attention. You should also seek attention if the wound is deep, if you cannot close it yourself, if you cannot stop the bleeding or get the dirt out, or if it does not heal.

Teen Health

As a teenager, you go through many changes. For one thing, your body is on its way to becoming its adult size. Have you noticed that you can't fit into your old shoes or that your jeans are now 3 inches too short? Along with these changes, you are probably becoming more independent and making more of your own choices. Some of the biggest choices you face are about your health.

Why? Because healthy habits, including eating nutritiously and being physically active, can help you feel good, look good and do your best in school, work or sports. They might also prevent diabetes, high blood pressure, heart disease, osteoporosis, stroke and some cancers when you are older.

Now is the time to take charge of your health. Making even small changes for the better will help you look and feel your best!

WWW :Privacy

"We are left with the alarming question as to whether privacy should be put before global safety." wrote Abhilash Sonwane of Cyberoam. Among services paid for by publicity, Yahoo! could collect the most data about profitable Web users, about 2,500 bits of in order per month about each typical user of its site and its allied publicity network sites. Yahoo! was followed by MySpace with about half that budding and then by AOL-TimeWarner, Google, Facebook, Microsoft, and eBay. About 27% of websites operate outside .com address.

Standards of WWW

Many formal standards and other technical stipulation define the operation of different aspect of the World Wide Web, the Internet, and computer in sequence exchange. Many of the papers are the work of the World Wide Web Consortium, headed by Berners-Lee, but some are shaped by the Internet Engineering Task Force and other organization.

Usually, when Web standards are discussed, the next publications are seen as opening:

* Recommendations used for markup languages, especially HTML and XHTML, from the W3C. These define the structure and interpretation of hypertext papers.

* Recommendations used for stylesheets, especially CSS, from the W3C.

* Standards for ECMAScript, from Ecma worldwide.

* Recommendations for the text Object Model, from W3C.

Additional publications give definitions of other essential technology for the World Wide Web, including, but not partial to, the next:

* Uniform Resource Identifier, which is a universal system for referencing capital on the Internet, such as hypertext documents and images. URIs, often called URLs, is defined by the IETF's RFC 3986 / STD 66: Uniform Resource Identifier: Generic Syntax, as well as its predecessor and numerous URI scheme-defining RFCs;

* HyperText Transfer Protocol, especially as distinct by RFC 2616: HTTP/1.1 and RFC 2617: HTTP Authentication, which specify how the browser and server validate each other.

World Wide Web working principle

Viewing a Web page on the World Wide Web usually begins either by typing the URL of the page into a Web browser, or by next a hyperlink to that page or resource. The Web browser then initiates a series of communication messages, behind the scenes, in order to fetch and show it.

First, the server-name portion of the URL is resolved into an IP address using the global, dispersed Internet folder known as the domain name system, or DNS. This IP address is essential to contact and send data packet to the Web server.

The browser then requests the resource by distribution an HTTP request to the Web head waiter at that particular address. In the case of a typical Web page, the HTML text of the page is request first and parsed right away by the Web browser, which will then make additional requests for imagery and any other files that form a part of the page. Statistics measuring a website's status are usually based on the number of 'page views' or linked server 'hits', or file requests, which take put.

Having received the essential files from the Web server, the browser then render the page onto the screen as specified by its HTML, CSS, and other Web languages. Any images and other income are included to produce the on-screen Web sheet that the user sees.

Most Web pages will themselves contain hyperlinks to other connected pages and perhaps to downloads, source credentials, definition and other Web resources. Such a collection of useful, linked resources, unified via hypertext links, is what was dubbed a "web" of information. Making it accessible on the Internet shaped what Tim Berners-Lee first called the WorldWideWeb in 1990.

World Wide Web

The World Wide Web is a system of interlinked hypertext documents access via the Internet. With a Web browser, a user views Web pages that may hold text, images, videos, and other multimedia and navigates between them using hyperlinks. The World Wide Web was created in 1989 by British scientist Sir Tim Berners-Lee, working at the European association for Nuclear Research in Geneva, Switzerland, and released in 1992. Since then, Berners-Lee has played an active role in guiding the growth of Web standards , and in recent years has advocate his idea of a Semantic Web.

Smoking Cessation

Tobacco use is the most ordinary preventable cause of death. About half of the people who don't quit smoking will die of smoking-related harms. Quitting smoking is significant for your health and provides much profit. Soon after you quit, your circulation begins to perk up, and your blood pressure starts to return to normal. Your sense of smell and taste return and inhalation starts to become easier. In the long term, giving up tobacco can help you live longer. Your risk of getting cancer decrease with each year you stay smoke-free.

Quitting is not easy. You may have short-term property such as weight gain, touchiness and anxiety. Some people try several times before following. There are many ways to quit smoking. Some populaces stop "cold turkey." Others benefit from step-by-step manuals, therapy or medicines or harvests that help reduce nicotine habit. Your health care source can help you find the best way for you to quit.

Paralysis

Paralysis is the loss of muscle purpose in part of your body. It happen when incredible goes wrong with the way messages pass among your brain and muscles. Paralysis can be total or partial. It can occur on one or together sides of your body. It can also occur in just one area, or it can be widespread. Paralysis of the worse half of your body, counting both legs, is called paraplegia. Paralysis of the arms and legs is quadriplegia.
Most paralysis is due to strokes or injuries such as spinal cord injury or a not working neck. Other causes of paralysis comprise

* Nerve disease such as amyotrophic lateral sclerosis
* Autoimmune disease such as Guillain-Barre syndrome
* Bell's palsy, which affect muscles in the face

Health Fraud

You have most likely seen ads for miracle cures an addition to cure cancer, a starve yourself to cure diabetes. But consider if it sounds too good to be true, then it possibly is. Health fraud involves selling drugs, devices, foods or makeup that has not been proven effective. At best, these scams don't work. At bad, they're dangerous. They also waste money, and they might keep you from receiving the action you really need.

Health scams often goal older people. Most victims in the United States are older than 65. To protect physically

* Question claim of "miracle cures" or "breakthroughs"

* Recognize that newspapers, magazines, and radio and TV stations do not have to make sure that the ads they run are true

* Find out about goods before you buy them

* Don't let salespeople force you into making snap decision

* Check with your doctor previous to attractive products