Web browser

A web browser or Internet browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URI) and may be a web page, image, video, or other piece of content Hyperlinks present in resources enable users to easily navigate their browsers to related resources.

Although browsers are primarily intended to access the World Wide Web, they can also be used to access information provided by Web servers in private networks or files in file systems. Some browsers can be also used to save information resources to file systems.

History

The history of the Web browser dates back in to the late 1980s, when a variety of technologies laid the foundation for the first Web browser, WorldWideWeb, by Tim Berners-Lee in 1991. That browser brought together a variety of existing and new software and hardware technologies.

The introduction of the NCSA Mosaic Web browser in 1993 – one of the first graphical Web browsers – led to an explosion in Web use. Marc Andreessen, the leader of the Mosaic team at NCSA, soon started his own company, named Netscape, and released the Mosaic-influenced Netscape Navigator in 1994, which quickly became the world's most popular browser, accounting for 90% of all Web use at its peak (see usage share of web browsers).

Microsoft responded with its browser Internet Explorer in 1995 (also heavily influenced by Mosaic), initiating the industry's first browser war. By bundling Internet Explorer with Windows, Microsoft was able to leverage its dominance in the operating system market to take over the Web browser market; Internet Explorer usage share peaked at over 95% by 2002. Internet Explorer has 60% browser usage share as of April 2010 according to Net Applications.

Opera first appeared in 1996; although it has never achieved widespread use, having 2% browser usage share as of April 2010, it has a substantial share of the fast-growing mobile phone Web browser market, being preinstalled on over 40 million phones. It is also available on several other embedded systems, including Nintendo's Wii video game console.

In 1998, Netscape launched what was to become the Mozilla Foundation in an attempt to produce a competitive browser using the open source software model. That browser would eventually evolve into Firefox, which developed a respectable following while still in the beta stage of development; shortly after the release of Firefox 1.0 in late 2004, Firefox (all versions) accounted for 7.4% of browser use. As of April 2010, Firefox has a 25% usage share.

Apple's Safari had its first beta release in January 2003; as of October 2009, it has a dominant share of Apple-based Web browsing, accounting for just under 5% of the entire browser market as of April 2010. Its rendering engine, called WebKit, is also running in the standard browsers of several mobile phone platforms, including the iPhone OS, Google Android, Nokia S60 and Palm WebOS.

The most recent major entrant to the browser market is Google's WebKit-based Chrome, first released in September 2008. As of April 2010, it has a 7% usage share.

Function

The primary purpose of a web browser is to bring information resources to the user. This process begins when the user inputs a Uniform Resource Identifier (URI), for example http://en.wikipedia.org/, into the browser. The prefix of the URI determines how the URI will be interpreted. The most commonly used kind of URI starts with http: and identifies a resource to be retrieved over the Hypertext Transfer Protocol (HTTP). Many browsers also support a variety of other prefixes, such as https: for HTTPS, ftp: for the File Transfer Protocol, and file: for local files. Prefixes that the web browser cannot directly handle are often handed off to another application entirely. For example, mailto: URIs are usually passed to the user's default e-mail application and news: URIs are passed to the user's default newsgroup reader.

In the case of http, https, file, and others, once the resource has been retrieved the web browser will display it. HTML is passed to the browser's layout engine to be transformed from markup to an interactive document. Aside from HTML, web browsers can generally display any kind of content that can be part of a web page. Most browsers can display images, audio, video, and XML files, and often have plug-ins to support Flash applications and Java applets. Upon encountering a file of an unsupported type or a file that is set up to be downloaded rather than displayed, the browser prompts the user to save the file to disk.

Interactivity in a web page can also be supplied by Javascript, which usually does not require a plugin. Javascript can be used along with other technologies to allow "live" interaction with the web page's server via AJAX.

Information resources may contain hyperlinks to other information resources. Each link contains the URI of a resource to go to. When a link is clicked, the browser navigates to the resource indicated by the link's target URI, and the process of bringing content to the user begins again.

 Features

Available web browsers range in features from minimal, text-based user interfaces with bare-bones support for HTML to rich user interfaces supporting a wide variety of file formats and protocols. Browsers which include additional components to support e-mail, Usenet news, and Internet Relay Chat (IRC), are sometimes referred to as "Internet suites" rather than merely "web browsers".

All major web browsers allow the user to open multiple information resources at the same time, either in different browser windows or in different tabs of the same window. Major browsers also include pop-up blockers to prevent unwanted windows from "popping up" without the user's consent.

Most web browsers can display a list of web pages that the user has bookmarked so that the user can quickly return to them. Bookmarks are also called "Favorites" in Internet Explorer. In addition, all major web browsers have some form of built-in web feed aggregator. In Mozilla Firefox, web feeds are formatted as "live bookmarks" and behave like a folder of bookmarks corresponding to recent entries in the feed. In Opera, a more traditional feed reader is included which stores and displays the contents of the feed.

Furthermore, most browsers can be extended via plug-ins, downloadable components that provide additional features.

HOW TO SAVE MONEY

• Save Money Tip 1
• Spend Less. This is not over simplifying the best way to save money! It is essential if you are serious about being a long term money saver and being able to save money every day. Review what you spend and look at ways you can save money. Consider making telephone calls for instance only at off-peak times. Do you really need to have newspapers and magazines delivered? Can you do without those coffees you buy at break time everyday - would a flask of coffee taken to work save you money? What about using the public lending library instead of buying books or music CDs? Once you start looking for little ways to save money and spend less you will quickly become an expert and really save money.
  
  
• Save Money Tip 2
• Establish a personal budget. This is essential for families and individuals and can be the fastest way to save money. You will instantly see your incomings and outgoings once you create your budget. You will not be able to save money unless you know how much money you have coming in, and how much money you have going out. Once you have prepared a budget of incoming money and outgoing money, you WILL be able to identify areas where you can save. It is MUCH more difficult to save money over a long period of time (the rest of your life?) without a budget.
  
  
• Save Money Tip 3
• Bulk is good. Think about shopping and buying in bulk. Save money grocery shopping by planning meals in advance and bulk-buying. You can also save money by cooking in bulk. This is a real way you can save money with little preparation and almost no extra outlay. Always purchase generics when you can. Prepared foods and convenience foods will always be much more expensive than the generic ingredients needed to make the food. Preparing food in bulk and in advance also gives you the opportunity to plan ahead and be more accurate in your budget. Save Money by buying in bulk whenever you can. One thing to be aware of when buying in bulk is to be sure that any product you buy will get used before it goes bad - you won't save money if you have to throw stuff away. Buying in bulk is not only a good way to save money it is also a good strategy for coping with and surviving emergencies.
  
  
• Save Money Tip 4
• Make sure a sale is a sale. By this I mean do your price research before you commit to making an expensive purchase in a retailers money-off sale. You have to be sure the sale really is a sale and not a creative marketing strategy of the store to encourage you to spend your money without thinking. Once you have researched the true price of a product (any product) you are in a good position to take advantage of a sale, special offer or discount and really save money. "Buy one get one free", "50% off", and "Huge Discount" will only help you save money if the actual price you pay is lower than you would pay somewhere else for exactly the same product.
  
  
• Save Money Tip 5
• Buy used. Sure, we all like to buy new. But there are huge money savings to be made in buying used. Typically cars lose one-third of their value in the first 24 months from new. Why not buy a car 24 months old? Other items such as clothes can be worth even less just the day after new. Look for ways to buy "as good as new" items and save money. Typical products you might consider buying used to save money include: cars, clothes, electrical goods, garden items... tools and sheds, household items... pots and pans, the list of used goods where you can save money is endless.
  
  
• Save Money Tip 6
• Don't carry excessive debt. Some debt in our lives may be essential. We may need a mortgage to purchase a home, we may need to use our credit card to make purchases until pay-day, but your aim to save money should be to have as little debt as possible. Credit Card deb is typically the most expensive debt we may carry. You will be able to save money every month if you make it an absolute rule to pay off your outstanding balance every month. If you can have the discipline to do this you will save money by effectively having no debt, and thus no interest charge on your credit card(s).
  
  
• Save Money Tip 7
• Save Money. No, I mean really save some money. Each week or each month get into the habit of putting an amount, however small into your savings. You could start by saving a very small fixed amount each time and then move to putting in larger amounts once you begin to save money from your other money saving strategies. You will find that by saving money on a regular basis you will quickly build up a store of reserve money and also feel motivated to save more. The hardest part is to take the first step and start saving money - so START TODAY and save some money NOW! If you find it impossible to save money once you have it, consider having money deducted from your paycheck direct each month. This can be a great way to save money rapidly as once it is set up you will not notice it is being collected and your savings will grow with no more effort from you.
  
  
• Save Money Tip 8
• Shop Wisely. Consider markets, superstores, farmer's markets, local shops, marts and stores. Anywhere is worth checking out to see if you can save money. Farmer's Markets can be particularly good places to save money. Typically you are buying direct from the producer of the product so the savings are passed on to you. Use your bulk buying strategy here - farmer's markets often offer opportunities to save money by buying larger quantities of staples, for instance potatoes, rice or corn. Save money and shop wisely.
  
  
• Save Money Tip 9
• Eat in rather than out. This is a huge area where you can save money. A cup of coffee taken out could easily cost you TWENTY times (or more) what it would cost you to make it at home. So think before you drink when you are out. Eating is the same. Fast food restaurants are counting on you eating food that you perhaps don't really need at that time but buy just because it is quick. Why not wait until you get home and have a more nutritious meal and save money at the same time. 
  
  
• Save Money Tip 10
• Use less. This money saving tip is a lesson we all need to learn. We live in a consumer society where waste is a huge problem. If we could all use and consume less there would be less waste, less power consumption, and the benefits for you are SAVING MONEY. Consider using less shampoo when you wash your hair, this may not mean washing your hair less effectively it means not flushing the excess shampoo and your money down the drain. What about saving on heating? Turn the thermostat down or put on extra clothes when you are cold. Turn off lights, the TV and the computer when they are not in use. Each little saving you make will build up and enable you to save money. Huge savings in energy can be made which will save you money and be good for our planet and the other people on it.
  

HOW TO STUDY SMART

1. Metaphor – Metaphors can allow you to quickly organize information by comparing a complex idea to a simple one. When you find relationships between information, come up with analogies to increase your understanding. Compare neurons with waves on a string. Make metaphors comparing parts of a brain with sections of your computer.
2. Use All Your Senses - Abstract ideas are difficult to memorize because they are far removed from our senses. Shift them closer by coming up with vivid pictures, feelings and images that relate information together. When I learned how to do a determinant of a matrix, I remembered the pattern by visualizing my hands moving through the numbers, one adding and one subtracting.
3. Teach It - Find someone who doesn’t understand the topic and teach it to them. This exercise forces you to organize. Spending five minutes explaining a concept can save you an hour of combined studying for the same effect.
4. Leave No Islands – When you read through a textbook, every piece of information should connect with something else you have learned. Fast learners do this automatically, but if you leave islands of information, you won’t be able to reach them during a test.
5. Test Your Mobility - A good way to know you haven’t linked enough is that you can’t move between concepts. Open up a word document and start explaining the subject you are working with. If you can’t jump between sections, referencing one idea to help explain another, you won’t be able to think through the connections during a test.
6. Find Patterns – Look for patterns in information. Information becomes easier to organize if you can identify broader patterns that are similar across different topics. The way a neuron fires has similarities to “if” statements in programming languages.
7. Build a Large Foundation - Reading lots and having a general understanding of many topics gives you a lot more flexibility in finding patterns and metaphors in new topics. The more you already know, the easier it is to learn.
8. Don’t Force - I don’t spend much time studying before exams. Forcing information during the last few days is incredibly inefficient. Instead try to slowly interlink ideas as they come to you so studying becomes a quick recap rather than a first attempt at learning.
9. Build Models – Models are simple concepts that aren’t true by themselves, but are useful for describing abstract ideas. Crystallizing one particular mental image or experience can create a model you can reference when trying to understand. When I was trying to tackle the concept of subspaces, I visualized a blue background with a red plane going through it. This isn’t an entirely accurate representation of what a subspace is, but it created a workable image for future ideas.
10. Learning is in Your Head – Having beautiful notes and a perfectly highlighted textbook doesn’t matter if you don’t understand the information in it. Your only goal is to understand the information so it will stick with you for assignments, tests and life. Don’t be afraid to get messy when scrawling out ideas on paper and connecting them in your head. Use notes and books as a medium for learning rather than an end result.

HOW TO PLAY GUITAR

Many people are aspiring to learn how to play the guitar. The guitar has risen into a certain level of popularity that it has become a symbol of talent, creativity and "coolness."
However, learning how to play the guitar is no joke. Learning to play the instrument requires one to learn how to play the chords. This article tries to give some helpful tips to individuals who would want to learn how to play guitar chords.
1. Get a chord chart
Playing guitar chords is just like playing chords in an organ. If one is learning to play the guitar alone (without a teacher), having a guitar chord book is his best bet. A guitar chord book demonstrates the different finger positions when playing different types of chords. The pressed strings are usually depicted with dots and the strings which are not supposed to be plucked are marked with an "x."
A chord book is a beginner's best friend. Memorizing chords without the help of a guitar teacher will be an impossible task if not for the chord book.
2. One at a time
There are dozens and dozens of different guitar chords which show themselves in different formations. Trying to memorize them in a single blow is close to impossible. Learning how to play guitar chords requires patience and lots of practice. Try practicing three chords that are can be played together (ex. A-E-D) on a single day and try to familiarize oneself with the transition between these chords. Don't try to take every chord in one sitting, it simply can't be done.
3. Be aware of the right hand
An important thing to remember when learning how to play guitar chords is that the movement of the right hand is as important as the movement of the left hand. Most beginners would find themselves taking breaks in strumming until the left hand positions itself properly for the next chord. This is normal during the first few day of practice, but at some point, the right hand should dictate the tempo of the movements of both hands. Strumming or plucking shouldn't be delayed.
4. Listen to guitar-intensive songs whenever possible
One should learn how to play the guitar with some inspiration at the back of his head. Listening to good guitar players will give one some idea of where he would want to go in the future.
5. Learn the different forms of chords
As stated earlier, guitar chords present themselves in various forms. One should be familiar with the different forms so as to bring flexibility in to playing. One popular form of chords which is widely used in rock music is the "power chords" they are simply and heavy-sounding.
Playing guitar chords is not as hard as one would think. Learning to play guitar chords is a basic and essential part of guitar playing, it lays down the foundation of good guitar playing skills. If one has the perseverance and the passion to play the guitar, he will eventually learn how to play the chords and advance into more intricate lessons.

who is me

name is haziq anaqi..stdy in kpm ayer molek..dploma in bisness studies..love music...thats all...enjoy read my blog k... :)