Présentation de la société

Google a pour mission d'organiser à l'échelle mondiale les informations dans le but de les rendre accessibles et utiles à tous.
Pour remplir cette mission, les fondateurs de Google, Larry Page et Sergey Brin, ont ainsi mis au point une nouvelle approche de la recherche en ligne qui naquit dans leur chambre universitaire de Stanford pour se répandre rapidement aux internautes à la recherche d'informations aux quatre coins du globe. Aujourd'hui, Google est largement reconnu comme le plus grand moteur de recherche du monde et se présente comme un service gratuit et facile à utiliser permettant d'obtenir des résultats pertinents en une fraction de seconde.
À partir de la page d'accueil de Google, vous pouvez rechercher des informations dans un grand nombre de langues différentes, vous tenir informé de l'actualité, bénéficier d'une banque de plus de 1 milliard d'images ou encore consulter des archives Usenet sans équivalent, comptant plus de 1 milliard de messages dont les plus anciens remontent à 1981.
Vous pouvez également accéder à toutes ces informations sans passer par la page d'accueil de Google. La barre d'outils Google vous permet ainsi d'effectuer une recherche Google directement à partir de la page Web affichée, quelle qu'elle soit. Et lorsque vous n'avez pas d'ordinateur à portée de main, vous pouvez utiliser Google à partir d'appareils sans fil tels que des téléphones WAP ou i-mode, par exemple.
La puissance et la facilité d'utilisation de Google en ont fait l'une des marques les plus connues au monde, presque uniquement grâce au bouche à oreille. Pour dégager des revenus, la société Google offre aux annonceurs la possibilité de diffuser des publicités efficaces, dont les effets peuvent être mesurés et qui sont en rapport avec les informations des pages Web sur lesquelles elles s'affichent. La publicité est donc intéressante pour l'annonceur qui la diffuse, mais aussi pour les internautes qui la consultent. Les annonces Google sont toujours clairement séparées des résultats de recherche ou du contenu informatif des pages Web. Nous estimons en effet qu'il est important que l'internaute puisse rapidement comprendre qu'il s'agit de publicités payantes. De plus, nous ne vendons pas les emplacements sur lesquels les publicités sont affichées et nous ne permettons pas aux annonceurs de payer pour améliorer le classement de leurs publicités.
Des milliers d'annonceurs utilisent notre programme Google AdWords pour faire la promotion de leurs produits et services sur le Web en diffusant des annonces ciblées et nous pensons qu'AdWords est le programme le plus important de ce type. En outre, des milliers de responsables de sites Web tirent parti de notre programme Google AdSense pour diffuser des annonces en rapport avec le contenu de leurs pages et générer des revenus tout en améliorant la perception de leur site par leurs visiteurs.

New Firefox

The award-winning Web browser is now even faster, more secure, and fully customizable to suit your online life. With Firefox 2, we’ve added powerful new features that make your online experience even better..
Enjoy a Better Web Experience
Firefox 2 delivers helpful new features to make your online experience more productive.
Stay Secure on the Web
Phishing Protection has been added to Firefox's existing protection against spyware, viruses and pop-ups.
Personalize Your Browser
Choose from thousands of useful Add-ons that enhance Firefox. It’s easy to personalize Firefox to make it your own.

Mozilla Firefox

"Firefox" redirects here. For other uses, see Firefox (disambiguation).Mozilla Firefox Mozilla Firefox 2 running on GNU/Linux, displaying the English Wikipedia main page Maintainer: Mozilla Corporation / Mozilla Foundation Stable release: 2.0.0.11 (November 30, 2007) [+/-] Preview release: 3.0b1 (November 19, 2007) [+/-] OS: Cross-platform Natural language(s): Multilingual Use: Web browser License: Mozilla EULA for binary redistribution Website: http://www.mozilla.com/firefox/ Mozilla Firefox is a web browser project managed by the Mozilla Corporation. Firefox's source code is available under the terms of the Mozilla tri-license as free and open source software.[1] By one measure Firefox has 14.85% of the world's market share in Web browsers as of October 2007,[2][3] making it the world's second most popular browser.Features included with Firefox are tabbed browsing, spell checker, incremental find, live bookmarking, an integrated download manager, and a search system that includes Google. A third party developer network has created add-ons which provide specialist functionality. There are more than 2,000 add-ons,[4] with the most popular including FoxyTunes (controls music players), Adblock Plus (ad blocker), StumbleUpon (website discovery), DownThemAll! (download functions) and Web Developer (web tools).[5]Firefox is cross-platform, providing support for various versions of Microsoft Windows, Mac OS X and Linux. The current stable release of Firefox is version 2.0.0.11, released on 30 November 2007.[6]
History
Dave Hyatt and Blake Ross began working on the Firefox project as an experimental branch of the Mozilla project. They believed the commercial requirements of Netscape's sponsorship and developer-driven feature creep compromised the utility of the Mozilla browser.[7] To combat what they saw as the Mozilla Suite's software bloat, they created a stand-alone browser, with which they intended to replace the Mozilla Suite. On April 3, 2003, the Mozilla Organization announced that they planned to change their focus from the Mozilla Suite to Firefox and Thunderbird.[8]The Firefox project has undergone several name changes. Originally titled Phoenix, it was renamed because of trademark issues with Phoenix Technologies. The replacement name, Firebird, provoked an intense response from the Firebird free database software project.[9][10][11] In response, the Mozilla Foundation stated that the browser should always bear the name Mozilla Firebird to avoid confusion with the database software. Continuing pressure from the database server's development community forced another change; on February 9, 2004, Mozilla Firebird became Mozilla Firefox,[12] often referred to as simply Firefox and sometimes abbreviated as Fx or fx.[13]The Firefox project went through many versions before 1.0 was released on November 9, 2004. In addition to stability and security fixes, the Mozilla Foundation released its first major update to Firefox version 1.5 on November 29, 2005. On October 24, 2006, Mozilla released Firefox 2. This version includes updates to the tabbed browsing environment, the extensions manager, the GUI, and the find, search and software update engines; a new session restore feature; inline spell checking; and an anti-phishing feature which was implemented by Google as an extension,[14][15] and later merged into the program itself.[16]

Firefox for Dummies

The 'Dummies' series from Wiley is renowned because of the vast number of people who have been well instructed by so many of the books. 'Dummies' authors come from all over and the actual number of books in the series runs into the hundreds, covering subjects ranging from philosophy to auto mechanics, pottery to electronics, and computing of all kinds to you-name-it. The rarity amongst the 'Dummies' books is the one that is written by the originator of the product being explained. That's the case with Firefox for Dummies—it's written by none other than Blake Ross, one of the co-creators of Firefox.The trick with writing any Dummies book is not to actually base it on the assumption that readers are dumb. The Dummies title word is a joke, an effective marketing and merchandising tool and consumers get a kick out of it. In fact, the best technical Dummies books are written by authors who understand the need to provide normal people with understandable explanations that help make effective use of the product at hand. Ross understands this, and best of all is better positioned than anyone else in the world to explain Firefox. The first thing you'll notice when reading the book is that he hasn't fallen into any obvious traps set by his deep knowledge of the software. In fact, Ross seems to revel in explaining things carefully, assuming nothing about a reader's knowledge of computing and web browsers, but at the same time finding effective and literate ways of teaching everything there is to know about Firefox and clearly explaining all the major technical issues, traps, pitfalls, psychological snares, and unique web features & functions which exist throughout the internet. For the record, during the past two years I've been using two browsers: Firefox and Maxthon —which is a powerful.
First and foremost, Firefox is a terrific product. It is only the second substantial browser to come along for Windows, Mac and Linux simultaneously (the first was Opera , which is also available in a smaller format for mobile operating systems such as Palm OS, Windows Mobile, Blackberry and Symbian). Firefox currently also stands as the greatest challenge to Microsoft's Internet Explorer which remains the dominant browser on the PC. A 'Dummies' book needs traction in the marketplace and traction in this case translates into raw numbers. If there weren't millions of Firefox users, there would be no reason for this book to exist. So its appearance, following Firefox's rapid uptake by users around the world, should be of great benefit to anyone who really wants to squeeze every drop of usefulness out of the browser.The book opens, as do all Dummies software books, with a tear-off "Cheat Sheet" containing a list of important keyboard shortcuts, mouse shortcuts, usage tips and references. The extensive table of contents allows you to jump ahead to any topic or sub-topic of interest. If you're really hesitant about using new software or you're unfamiliar with software in general and choose to read the book from cover to cover, it's well organized and will help you get up and running very quickly. It's likely that even the most hesitant novice can be up and running with Firefox in under an hour. More experienced people will naturally have the browser installed and running in the time it takes to install and run any similar software on their computer. But even those people will benefit from chapter 1 because it provides explanations about the specific ways in which Firefox stores downloads, updates itself and records bookmarks. The rest of the book cracks open every single detail in the current version of the software (v1.5.x as of this writing). Ross has organized the book in a way that allows him to talk about all of the Firefox features and functions while you're actually surfing the web.Curiously, downloading and installing Firefox, setting it up, the system requirements, importing Favorites or Bookmarks from competing browsers, switching from other browsers and a lot of other startup details don't appear until chapter 3 (pg. 27). This is also typical of many Dummies books, the theory being to involve readers in the product before boring them with the mundanity of downloads, installations and so on. I disagree with the approach.Chapter 5: Bookmarking Great Sites, is one of the highlights. More than anything else, Firefox and all other web browsers allow you to funnel through your computer monitor enormous amounts of information found throughout the world. Organizing all of the individual web sites and specific web pages of particular interest to you can variously be a nightmare, a pleasure, a pain in the butt, a chore, a necessary evil or a pleasant experience. Ross thoroughly explains Firefox's bookmarking feature, providing you with a clear understanding of its use and benefits (and I'm now using the Bookmark All Tabs function on a regular basis—thank you Mr. Ross), and better overall experience when collection information online.The book consists of the Cheat Sheet, an introduction, 22 chapters organized into 5 parts, a closing section of 3 appendices, and a reasonably extensive index; a total of 364 pages including some promotional Dummies book lists on the last two pages.Cons: Dare I say we'd be struck down by bolts of lightning for criticizing a Firefox book written by one of the co-creators of the software? Forsooth! In some respects Firefox is an incomplete browser compared to Internet Explorer, mainly because e-mail (via a companion operating system program such as Outlook Express) is not 'integrated' within Firefox as it is in IE. That means Ross has to spend some time explaining and orienting Firefox users about the excellent, albeit less well known, Thunderbird e-mail program, the (again less well known) boatload of extension utilities which can be plugged into Firefox and some other niceties. It's not much of a 'Con', is it? There's actually nothing wrong with the book. There's not much wrong with Firefox either.Pros: A few software and hardware creators have taken the time to write books about their creations. Some of those books aren't very good. Blake Ross is no ordinary programmer however, and it turns out that he's a capable and entertaining writer. If you're a daily or otherwise regular user of Firefox and you're still wondering what all the fuss surrounding the browser is all about, you need this book. If you're thinking of switching to Firefox from some other browser, you need this book. If you've just started using Firefox and you want to squeeze every last drop of productivity out of it, you need this book. In a series of well organized topics, you'll be walked through the software and taught to make easy use of a tremendous amount of power. There are lots of instructive screenshots, well written "Technical Stuff" sidebars and highlighted explanations throughout the book which delve into general interest subjects such as hacking, netiquette, the origin of the Firefox name, practical applications for browsing, and so on. During the review period, I learned at least half a dozen Firefox shortcuts which I now use regularly. Your web browsing will never be the same after you absorb this book. It will be much, much better. Excellent book. Highly recommended and we give it our highest rating.

what is forex

FOREX (FOReign EXchange market) is an international foreign exchange market, where money is sold and bought freely. In its present condition FOREX was launched in the 1970s, when free exchange rates were introduced, and only the participants of the market determine the price of one currency against the other proceeding from supply and demand.As far as the freedom from any external control and free competition are concerned, FOREX is a perfect market. It is also the biggest liquid financial market. According to various assessments, money masses in the market constitute from 1 to 1.5 trillion US dollars a day. (It is impossible to determine an absolutely exact number because trading is not centralized on an exchange.) Transactions are conducted all over the world via telecommunications 24 hours a day from 00:00 GMT on Monday to 10:00 pm GMT on Friday. Practically in every time zone (that is, in Frankfurt-on-Main, London, New York, Tokyo, Hong Kong, etc.) there are dealers who will quote currencies.FOREX is a more objective market, because if some of its participants would like to change prices, for some manipulative purpose, they would have to operate with tens of billions dollars. That is why any influence by a single participants in the market is practically out of the question. The superior liquidity allows the traders to open and/or close positions within a few seconds. The time of keeping a position is arbitrary and has no limits: from several seconds to many years. It depends only on your trading strategies. Although the daily fluctuations of currencies are rather insignificant, you may use the credit lines, that are accessible even to currency speculators with small capitals ($ 1,000 - 5,000), where the profit may be impressive. (You can learn more about it in the section: The main principles of trading.)The idea of marginal trading stems from the fact that in FOREX speculative interests can be satisfied without a real money supply. This decreases overhead expenses for transferring money and gives an opportunity to open positions with a small account in US dollars, buying and selling a lot of other currencies. That is, on can conduct transactions very quickly, getting a big profit, when the exchange rates go up or down. Many speculative transactions in the international financial markets are made on the principles of marginal trading.Margin trading is trading with a borrowed capital. Marginal trading in an exchange market uses lots. 1 lot equals approximately $100,000, but to open it it is necessary to have only from 0.5% to 4% of the sum.For example, you have analyzed the situation in the market and come to the conclusion that the pound will go up against the dollar. You open 1 lot for buying the pound (GBP) with the margin 1% (1:1000 leverage) at the price of 1.49889 and wait for the exchange rate to go up. Some time later your expectations become true. You close the position at 1.5050 and earn 61 pips (about $ 405). For the calculation of 1 pip click here.Everyday fluctuations of currencies constitute about 100 to 150 pips, giving FX traders an opportunity to make money on these changes.In FOREX, it's not obligatory to buy some currency first in order to sell it later. It's possible to open positions for buying and selling any currency without actually having it. Usually Internet-brokers establish the minimum deposit such as $ 2000, for working in the FOREX market, and grant a leverage of 1:100. That is, opening the position at $100,000, a trader invests $1,000 and receives $99.000 as a credit. The major currencies traded in FOREX, are Euro (EUR), Japanese yen (JPY), British Pound (GBP), and Swiss Franc (CHF). All of them are traded against the US dollar (USD).In order to assess the situation in the market a trader has to be able to use fundamental and/or technical analysis, as well as to make decisions in the constantly changing current of information about political and economic character. Most small and medium players in financial markets use technical analysis. Technical analysis presupposes that all the information about the market and its further fluctuations is contained in the price chain. Any factor, that has some influence on the price, be it economic, political or psychological, has already been considered by the market and included in the price. The initial data for a technical analysis are prices: the highest and the lowest prices, the price of opening and closing within a certain period of time, and the volume of transactions.A technical analysis is founded on three suppositions:Movement of the market considers everything;Movement of prices is purposeful;History repeats itself. That is, technical analysis is a statistical and mathematical analysis of previous quotes and a prognosis of coming prices.A number of technical indicators have been installed into the PRO-CHARTS trading system. Analyzing the indicators one can come to the conclusion about further movements of the quoted currencies. For a more detailed description of the indicators, analyzing price charts and volumes of trading, click here.Fundamental analysis is an analysis of current situations in the country of the currency, such as its economy, political events, and rumors. The country's economy depends on the rate of inflation and unemployment, on the interest rate of its Central Bank, and on tax policy. Political stability also influences the exchange rate. Policy of the Central Bank has a special role, as concentrated interventions or refusal from them greatly influence the exchange rate.At the same time one should not consider fundamental analysis just as an analysis of the economic situation in the country itself. A far bigger role in the FOREX market belongs to the expectations of the market participants and their assessment of these expectations. Various prognoses and bulletins, issued by the participants, have a strong influence on the expectations. Very often an effect of the so-called self-filfilling prophecy occurs when market players raise or lower the exchange rates according to the prognosis. But a deep and thorough fundamental analysis is available only for big banks with a staff of professional analysts and constant access to a wide field of information.In spite of these different approaches, both forms of analyses complement one another. Traders who act on the basis of a fundamental analysis, have to consider some technical characteristics of the market (the main rates of support, such as resistance and resale), and supporters of the technical approach to the market must track the main news (interest rates, important political events).

Market dynamics

The breadth, depth, and liquidity of the market are truly impressive. It has been estimated that the world's most active exchange rates like EURUSD and USDJPY can change up to 18,000 times during a single day.Somewhere on the planet, financial centers are open for business, and banks and other institutions are trading the dollar and other currencies, every hour of the day and night, aside from possible minor gaps on weekends. In financial centers around the world, business hours overlap; as some centers close, others open and begin to trade.The foreign exchange market follows the sun around the earth. Each business day arrives first in the Asia-Pacific financial centers; first Wellington, New Zealand, then Sydney, Australia, followed by Tokyo, Hong Kong, and Singapore. A few hours later, while markets remain active in those Asian centers, trading begins in Bahrain and elsewhere in the Middle East. Later still, when it is late in the business day in Tokyo, markets in Europe open for business. Subsequently, when it is early afternoon in Europe, trading in New York and other U.S. centers starts. Finally, completing the circle, when it is middle or late afternoon in the United States, the next day has arrived in the Asia-Pacific area, the first markets there have opened, and the process begins again.The graph underneath displays not only the currency trading time cycle but also the average 'depth' of trading at different times during the day in the various business hours.1. Spot rateA spot transaction is a straightforward (or outright) exchange of one currency for another. The spot rate is the current market price or 'cash' rate. Spot transactions do not require immediate settlement, or payment 'on the spot'. By convention, the settlement date, or value date, is the second business day after the deal date on which the transaction is made by the two parties.2. Bid & askIn the foreign exchange market (and essentially in all markets) there is a buying and selling price. It is important to perceive these prices as a reflection of market condition.A market maker is expected to quote simultaneously for his customers both a price at which he is willing to buy (the bid) and a price at which he is willing to sell (the ask) standard amounts of any currency for which he is making a market.ACM quotes very competitive spreads to customers, to site an example if a trader is interested in a transaction in EURUSD then he can trade on a bid/ask of say 0.9150 / 0.9153. This means that ACM is willing to buy from him a pre-determined amount at 0.9150 or inversely to sell to him at 0.9153.Generally speaking the difference between the bid and ask rates reflect the level of liquidity in a certain instrument. On a normal trading day, the major currency pairs EURUSD, USDJPY, USDCHF and GBPUSD are traded by a multitude of market participant every few seconds. High liquidity means that there is always a seller for your buy and a buyer for your sell at actual prices.3. Base currency and counter currencyEvery foreign exchange transaction involves two currencies. It is important to keep straight which is the base currency and which is the counter currency. The counter currency is the numerator and the base currency is the denominator. When the counter currency increases, the base currency strengthens and becomes more expensive. When the counter currency decreases, the base currency weakens and becomes cheaper. In telephone trading communications, the base currency is always stated first. For example, a quotation for USDJPY means the US dollar is the base and the yen is the counter currency. In the case of GBPUSD (usually called 'cable') the British pound is the base and the US dollar is the counter currency.4. Quotes in terms of base currencyTraders always think in terms of how much it costs to buy or sell the base currency. When a quote of 0.9150 / 53 is given that means that a trader can buy EUR against USD at 0.9153. If he is buying EURUSD for 1'000'000 at that rate he would have USD 915'300 in exchange for his million Euro. Of course traders are not actually interested in exchanging large amounts of different currency, their main focus is to buy at a low rate and sell at higher one.5. Basis points or 'pips'For most currencies, bid and offer quotes are carried down to the fourth decimal place. That represents one-hundredth of one percent, or 1/10,000th of the counter currency unit, usually called a 'pip'. However, for a few currency units that are relatively small in absolute value, such as the Japanese yen, quotes may be carried down to two decimal places and a 'pip' is 1/100th of the terms currency unit. In foreign exchange, a 'pip' is the smallest amount by which a price may fluctuate in that market.6. Euro cross & cross ratesEuro cross rates are currency pairs that involve the Euro currency versus another currency. Examples of Euro crosses are EURJPY, EURCHF and GBPEUR. Currency pairs that involve neither the Euro nor the US dollar are called cross rates. Examples of cross rates are GBPJPY and CHFJPY. Of course hundreds of cross rates exist involving exotic currency pairs but they are often plagued by low liquidity. Ever since the Euro the number of liquid cross rates have decreased and have been replaced (to a certain extent) by Euro crosses.

The Cornflower System

Construct a template according to the following settings:8 EMA (yellow, dotted)12 EMA (violet)24 EMA (cornflower blue, hence the name)72 EMA (khaki)Apply to H1 (conservative) or M30 (aggressive) chart only and remove the grid for clarity.System principlesCornflower is based on the principle that trades should be taken when the same trend presents itself on multiple timeframes. On an hourly chart, the 24 EMA obviously defines the daily trend. The 8 EMA, which is one-third the length, shows the intraday velocity of “fast” money. A 12 EMA shows the trend of the last half-day. Its value is a place at which price will typically find support when there is a dominant trend. To a lesser extent, this also applies to the 24 EMA. A long-term trend will sometimes catch a breather around this area, with big money accumulating on the opportunity to buy or sell at a substantial discount. Finally, the 72 EMA defines the dominant trend in the market. This trend will reassert itself as cumulative memory persuades traders to resume trading in its direction. If the three shorter-term averages are above the 72 EMA, we are in an uptrend and should not go short. The same applies in reverse for a downtrend.Cornflower can be used in a number of ways by all kinds of traders. When price pulls back to the area between the 12 and 24 EMAs, the opportunity for a short- to medium-term bounce presents itself. We can enter and set a profit target based on a number of criteria, be they support and resistance areas, pivot points, or a set pip amount. Or we can enter a longer-term trade, perhaps exiting when the 12 EMA crosses down below the 24 EMA. The longer-term setups in this system are powerful and can yield hundreds of pips on a single trade that will last for up to two weeks. Cornflower will catch every major move in the market, providing multiple opportunities to take advantage of a big trend and pretend that one is a bank trader.Basic System RulesThere are two kinds of entries using this system: pullback (conservative) and initial (aggressive). The pullback entry, which is the heart of this system, enters the market when conditions are quiet and after price has settled into the area between the 8 and 24 EMAs. The timing of this entry can either be mechanical (using either the 12 or 24 EMA) or discretionary in accordance with the trader’s judgment on whether price is moving back in the direction of the trend.The initial entry aims to capitalize on the first movement of a new trend, defined by a thrust beyond the 72 EMA that is confirmed by a turnaround in the shorter EMAs. It is more risky because there is always the possibility of a reversal. For this reason, it is probably better to use the M30 chart for this type of entry. Moved up by 30 minutes, one has the opportunity to take a small profit or scratch a trade at or near break-even if a reversal presents itself.Only the H1 and M30 charts should be used with the Cornflower template. Shorter time periods will lead to whipsaws, whereas longer time periods lag behind the market too much.The following rules are valid no matter the time of day. The quiet of the Asian session actually provides some excellent opportunities for entry, which is a boon for the trader whose day job makes watching the market during London or New York an impossibility.Pullback (conservative) entry – use hourly chart·8, 12, and 24 EMAs are all above (long) or below (short) the 72 EMA·Price has pulled back to the 12 or 24 EMA (the more aggressive the trend, the more shallow the pullback.·Enter for 20 pips, or hold depending on trader’s judgment of the strength of the trend.Initial (aggressive) entry – use M30 chart with identical indicators·Price has moved with authority above or below the 72 EMA. By “moved with authority,” I mean a candle that has closed near the top of its range.·8, 12, 24 EMAs are all pointed in the direction of price, and preferably already stacked in a perfect order (8 over 12 over 24 for long, 24 over 12 over 8 for short).·Enter for 20 pips and hold if the thrust develops into a real trend.Using hourly and half-hourly charts, 20 pips is a realistic initial profit target, especially if one is trading GBPUSD, GBPJPY, or EURJPY. Even the other major pairs should yield this much on a properly gauged signal. By “major,” I mean EURUSD, USDCHF, AUDUSD, USDJPY, NZDUSD, and USDCAD. With the possible exception of EURGBP, any pair that involves two of the seven major currencies should be tradable with this system. Cornflower is particularly well-suited for entering long positions on the yen crosses (carry trades).