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mardi 31 janvier 2017

Iphone 7

Look and feel

For the third year in a row, Apple has kept the look and feel of the iPhone the same. This is a break from the company's every-two-year-redesign cadence, and has led to speculation that next year's 10th-generation model will represent a radical new look. The iPhone 7 sports a smooth casing made from 7000 series aluminum shaped to meet the all-glass front; build tolerances are tight enough to give a seamless appearance.
The iPhone 7 - the smaller of the two models - has a 4.7-in. LCD screen and weighs 4.87 oz.; the Plus model has a 5.5-in. screen and weighs 6.63 oz. Apple doubled the entry-level storage to 32GB, with 128GB and 256GB versions available for an extra $100 with each jump. (The jet black model is only available with 128GB and 256GB of storage.)
apple iphone 7REUTERS/Lucy Nicholson
Apple's iPhone 7 Plus on display in an Apple Store in Los Angeles.
The iPhone's high-resolution Retina HD display is flanked by either a white or a black bezel; the rear case comes in silver, gold, rose gold, jet black and matte black. (Sorry, space gray fans - the iPhone 7 isn't offered in that color.) The most noticeable change is that the antenna lines have been moved to the top and bottom of the case, giving the iPhone 7 an unbroken, smooth finish. On the darker colors, the antenna lines pretty much disappear (unless held to the light at certain angles).
The Power button, mute switch and volume buttons are unchanged, and the Home button/ Touch ID fingerprint scanner is still centered at the bottom of the display. But it's no longer a mechanical button that you press down. It now uses a haptic sensor - Apple's Taptic Engine - that is pressure sensitive and gives click-like feedback when pressed.
The new Home button takes some getting used to; it's not any harder or easier to use than before, but it does feel different. The response to pressing the Home button is more akin to a thump than a click. One of the benefits of the new design is that you can adjust how much of a response you'll feel. Just go to Settings: General: Home Button.

Same look, but improvements abound

Why would Apple take what's become an iconic design routinely copied by competitors and tweak the Home button and headphone jack? For one thing, both changes help make the iPhone 7 more resistant to dust and water.
How resistant? Apple states that the iPhone 7 has an IP67 rating under the IEC standard 60529, which is legalese meaning it can survive for 30 minutes under three feet of water. It's fine if you drop it in the sink or get caught in the rain, but try to avoid scuba diving. (One tester actually did take it scuba diving while recording 4K video with its built-in camera. But you shouldn't.) If it does get immersed, Apple recommends waiting about five hours before attempting to charge the phone again.
Internally, the iPhone 7 is built around Apple's custom-designed A10 Fusion chip. In normal use, the iPhone 7 is responsive and quick to load, as was the iPhone 6S. The 64-bit A10 Fusion chipset is rated 40% faster than the A9 found on the 6S, so anyone upgrading from an iPhone 6S will notice a speed bump for everyday tasks like loading apps, browsing the web and loading content. That speed boost will be more dramatic if you're upgrading from an iPhone 6 or earlier. Apple boasts that the A10 is twice as fast compared to the A8 chipset in the iPhone 6, which itself was dramatically faster than previous models.
That's speaking subjectively. Geekbench 4 CPU scores rate the average iPhone 7 (and 7 Plus) score for multi-core CPU at approximately 5600 (and a single-core CPU score at around 3440). How does that translate into real-world performance? This video shows how the iPhone 7 and 6S stack up. In this test, rows of apps and games are launched, loaded, and closed in succession for two laps. The first lap is a good indicator of system speed as apps are loaded; the second lap shows how well the operating system handles resource management as it reloads each app. I like this test because that's what everyone does on their phone every day: open and close and reopen apps.
The iPhone 7 naturally bests 6S. And the 7 Plus tops the smaller 7, especially in the second lap. That's because the 7 Plus comes with 3GB of memory; 1GB more than what's in the iPhone 7. Because the iPhone 7 Plus can store more in memory, reloading apps is faster. That's not the only thing the additional memory is used for; I'll get to that below in the Camera section.

Fast performance is important, but it shouldn't come at the expense of battery life. I'm pleased to report that I'm getting more life out of my new phone than I did with the iPhone 6S. I've been averaging between 20% and 40% of remaining battery life, having used the iPhone constantly between the hours of 8:30 a.m. and 5 p.m. (During my commute, I recharge both my Apple Watch and iPhone, so both start my work day at 100%.) With the iPhone 6S, I was having to re-charge by the time 4 p.m. rolled around each day.
So Apple delivered better performance and better battery life. How? At least some credit has to go to the A10 Fusion chipset. Fusion isn't just a slick marketing name; this CPU has four cores, one pair for high-performance work, another pair of lower-clocked cores for non-intensive tasks like fetching email. An Apple-designed performance controller determines which processes use which cores.
The Taptic Engine has also been updated. It's stronger, and can react faster in an expanded range of frequencies. For that reason, Apple tweaked iOS 10 to trigger haptic feedback for some specific actions. When activating 3D Touch (where you press down harder on the screen and get a pop-up menu) or using the Home button, this haptic feedback is useful; at other times -- when pulling down the Notification drawer or spinning the roulette interface like the Timer in Clock app -- it's just a fun addition.

Something to really smile about

The iPhone 7 flat out takes better pictures than previous iPhones, especially in lower- light situations. That's true for both the smaller iPhone 7 and the larger iPhone 7 Plus, which has a new two-camera system.
In the iPhone 7, the rear camera has optical stabilization, an ƒ/1.8 aperture, and a six-element lens; it takes 12-megapixel photos. In low-light situations, photos still show some digital noise, but the new system is able to pick up more details and colors than before, and the optical stabilization helps reduce blur due to light camera shake. Not everyone has steady hands.
An updated True Tone flash system relies on four LEDs to compensate for low-light cases when a flash is needed. These LEDs are brighter than before (Apple says 50% brighter), and help bring out more natural colors (such as skin tone) compared to a traditional flash.
The rear camera also records video at up to 4K resolution at 30 frames per second and can capture better footage in low-light situations. As before, the iPhone 7 can also record Time Lapse and slow-motion footage.
iphone 7 rocks zoomKen Mingis
The iPhone 7 Plus has two cameras that allow for 2X optical zoom.

vendredi 23 septembre 2016

Steve Jobs

Steve Jobs

Steve Jobs

Steve Jobs présentant l'iPhone 4 en blanc, lors du discours d'ouverture (keynote) de sa Présentation du 7 juin 2010.
Nom de naissanceSteven Paul Jobs
Naissance
San FranciscoCalifornieÉtats-Unis
Décès (à 56 ans)
Palo AltoCalifornieÉtats-Unis
NationalitéDrapeau des États-Unis Américain
Pays de résidenceÉtats-Unis
ProfessionEntrepreneur
Activité principaleCofondateur, directeur général et président du conseil d'administrationd'Apple
Cofondateur et directeur général dePixar Animation Studios
Fondateur et directeur général deNeXT
Autres activitésMembre du conseil d'administrationde The Walt Disney Company
FormationReed College
ConjointLaurene Powell Jobs (1963- )
FamilleMona Simpson (sœur)
Signature de Steve Jobs
Steven Paul Jobs, dit Steve Jobs, (San Francisco - Palo Alto) est un entrepreneur etinventeur américain, souvent qualifié de visionnaire1, et une figure majeure de l'électronique grand public, notamment pionnier de l'avènement de l'ordinateur personnel, du baladeur numérique, du smartphone et de la tablette tactile. Cofondateur, directeur général et président du conseil d'administration d'Apple Inc, il dirige aussi les studios Pixar et devient membre du conseil d'administration de Disney lors du rachat en 2006 de Pixar par Disney.
Steve Jobs, Steve Wozniak et Ronald Wayne créent Apple le 1er avril 1976 à Cupertino. Au début des années 1980, Steve Jobs saisit le potentiel commercial des travaux du Xerox Parc sur le couple interface graphique/souris, ce qui conduit à la conception du Lisa, puis du Macintosh en 1984, les premiers ordinateurs grand public à profiter de ces innovations. Après avoir perdu une lutte de pouvoir à la tête d'Apple avec le directeur général qu'il avait pourtant recruté, John Sculley, il quitte l'entreprise en septembre 1985 pour fonder NeXT.
En 1986, il rachète la division Graphics Group de Lucasfilm, la transforme en Pixar Animation Studios et rencontre le succès commercial en 1995 avec Toy Story, un film dont il est le producteur délégué. Il reste directeur-général propriétaire de la compagnie (à 50,1 %) jusqu'à son acquisition par la Walt Disney Company en 2006.
Début 1997, Apple, alors au bord de la faillite, rachète NeXT. L'opération permet à Steve Jobs de revenir à la tête de la firme qu'il a cofondée et fournit à Apple le code source de NeXTSTEP à partir duquel est développé le système d'exploitation Mac OS X. Il supervise durant les quatorze années suivantes la création, le lancement et le développement de l'iMac (1998), de l'iPod, d'iTunes et de la chaîne de magasins Apple Store (2001), de l'iTunes Store (2003), de l'iPhone(2007) et de l'iPad (2010), présentant les différents produits à un rythme pluriannuel lors de ses fameuses keynotes et faisant de son entreprise une des plus riches au monde au moment de sa mort2.
En 2003, Steve Jobs apprend qu'il est atteint d'une forme rare de cancer pancréatique. Il passe les années suivantes à lutter contre la maladie, subissant plusieurs hospitalisations et arrêts de travail, apparaissant de plus en plus amaigri au fur et à mesure que sa santé décline. Il meurt le 5 octobre 2011 à son domicile de Palo Alto, à l'âge de cinquante-six ans. Sa mort soulève une importante vague d'émotion à travers le monde.

jeudi 22 septembre 2016

Bill Gates


bill gates

William Henry "BillGates III (born October 28, 1955) is an American business magnate, investor, author and philanthropist. In 1975, Gates and Paul Allen co-founded Microsoft, which became the world's largest PC software company. During his career at Microsoft, Gates held the positions of chairman, CEO and chief software architect, and was the largest individual shareholder until May 2014. Gates has authored and co-authored several books.
microsoft

Starting in 1987, Gates was included in the Forbes list of the world's wealthiest people and was the wealthiest from 1995 to 2007, again in 2009, and has been since 2014. Between 2009 and 2014, his wealth doubled from US$40 billion to more thanUS$82 billion. Between 2013 and 2014, his wealth increased by US$15 billion. Gates is currently the wealthiest person in the world with a net worth of US$90 billion as of August 2016.
microsoft

Gates is one of the best-known entrepreneurs of the personal computer revolution. Gates has been criticized for his business tactics, which have been considered anti-competitive, an opinion that has in some cases been upheld by numerous court rulings. Later in his career Gates pursued a number of philanthropic endeavors, donating large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, established in 2000.
bill gates

Gates stepped down as chief executive officer of Microsoft in January 2000. He remained as chairman and created the position of chief software architect for himself. In June 2006, Gates announced that he would be transitioning from full-time work at Microsoft to part-time work, and full-time work at the Bill & Melinda Gates Foundation. He gradually transferred his duties to Ray Ozzie(chief software architect) and Craig Mundie (chief research and strategy officer). Ozzie later left the company. Gates's last full-time day at Microsoft was June 27, 2008. He stepped down as chairman of Microsoft, in February 2014, taking on a new post as technology adviser to support newly appointed CEO Satya Nadella.