Mobile operating system
A mobile operating system is an operating system for phones, smartwatches, or other mobile devices. While computers such as typical laptops are'mobile', the operating systems used on them are not considered mobile ones, as they were designed for desktop computers that did not have or need specific mobile features; this distinction is becoming blurred in some newer operating systems that are hybrids made for both uses. Mobile operating systems combine features of a personal computer operating system with other features useful for mobile or handheld use. By Q1 2018, over 383 million smartphones were sold with 86.2 percent running Android and 12.9 percent running iOS. Android alone is more popular than the popular desktop operating system Windows, in general smartphone use outnumber desktop use. Mobile devices with mobile communications abilities contain two mobile operating systems – the main user-facing software platform is supplemented by a second low-level proprietary real-time operating system which operates the radio and other hardware.
Research has shown that these low-level systems may contain a range of security vulnerabilities permitting malicious base stations to gain high levels of control over the mobile device. Mobile operating systems have majority use since 2017, thus traditional desktop OS is now a minority used kind of OS. However, variations occur in popularity by regions, while desktop-minority applies on some days in regions such as United States and United Kingdom. 9294029091 Mobile operating system milestones mirror the development of mobile phones and smartphones: 1973–1993 – Mobile phones use embedded systems to control operation. 1993 – Apple launch Newton OS running on their Newton series of portable computers. 1994 – The first smartphone, the IBM Simon, has a touchscreen, PDA features. 1996 – Palm Pilot 1000 personal digital assistant is introduced with the Palm OS mobile operating system. 1998 – Symbian Ltd. has developed Symbian OS. Symbian was used by many major mobile phone brands, above all by Nokia.
1999 – Nokia S40 Platform is introduced along with the Nokia 7110. 2000 – Symbian becomes the first modern mobile OS on a smartphone with the launch of the Ericsson R380. 2001 – The Kyocera 6035 is the first smartphone with Palm OS. 2002 Microsoft's first Windows CE smartphones are introduced. BlackBerry releases its first smartphone. 2005 – Nokia introduces Maemo OS on the first Internet tablet N770. 2007 Apple iPhone with iOS is introduced as an iPod, "mobile phone" and "Internet communicator". Open Handset Alliance formed by Google, HTC, Dell, Motorola, Samsung, LG, etc. 2008 – OHA releases Android 1.0 with the HTC Dream as the first Android phone. 2009 Palm introduces webOS with the Palm Pre. By 2012, webOS devices were discontinued. Samsung announces the Bada OS with the introduction of the Samsung S8500. November – Windows Phone OS phones are released but are not compatible with the prior Windows Mobile OS. July – MeeGo, a mobile Linux distribution, combining Maemo and Moblin, is introduced with the Nokia N9, a collaboration of Nokia and Linux Foundation.
September Apple releases iOS 9. Google releases Android 6.0 "Marshmallow". October – On October 26, BlackBerry announced that there are no plans to release new APIs and software development kits for BlackBerry 10, future updates would focus on security and privacy enhancements only. November – Microsoft releases Windows 10 Mobile. February – Microsoft released Windows 10 Mobile Anniversary Update. June – Apple announced iOS 10. August – Google posted the Fuchsia source code on GitHub. August – Google released Android 7.0 "Nougat". September – Apple released iOS 10. November – Tizen released Tizen 3.0. November – BlackBerry released BlackBerry 10.3.3. April – Samsung offic
Google AdSense is a program run by Google that allows publishers in the Google Network of content sites to serve automatic text, video, or interactive media advertisements, that are targeted to site content and audience. These advertisements are administered and maintained by Google, they can generate revenue on either a per-impression basis. Google beta-tested a cost-per-action service, but discontinued it in October 2008 in favor of a DoubleClick offering. In Q1 2014, Google earned US 22 % of total revenue, through Google AdSense. AdSense is a participant in the AdChoices program, so AdSense ads include the triangle-shaped AdChoices icon; this program operates on HTTP cookies. Over 11.1 million websites use AdSense. Google uses its technology to serve advertisements based on website content, the user's geographical location, other factors; those wanting to advertise with Google's targeted advertisement system may enroll through Google AdWords. AdSense has become one of the popular programs that specializes in creating and placing banner advertisements on a website or blog, because the advertisements are less intrusive and the content of the advertisements is relevant to the website.
They use text content on their websites. Note that Google prohibits webmasters from using phrases like "Click on my AdSense ads" to increase click rates; the phrases accepted are "Sponsored Links" and "Advertisements". The source of all AdSense income is the AdWords program, which in turn has a complex pricing model based on a Vickrey second price auction. AdSense commands an advertiser to submit a sealed bid. Additionally, for any given click received, advertisers only pay one bid increment above the second-highest bid. Google shares 68% of revenue generated by AdSense with content network partners, 51% of revenue generated by AdSense with AdSense for Search partners. On June 18, 2015, Google announced rebranding of AdSense with a new logo. Google launched its AdSense program named content targeting advertising in March 2003; the AdSense name was used by Applied Semantics, a competitive offering to AdSense. The name was adopted by Google after Google acquired Applied Semantics in April 2003; some advertisers complained that AdSense yielded worse results than AdWords, since it served ads that related contextually to the content on a web page and that content was less to be related to a user's commercial desires than search results.
For example, someone browsing a blog dedicated to flowers was less to be interested in ordering flowers than someone searching for terms related to flowers. As a result, in 2004 Google allowed its advertisers to opt out of the AdSense network. Paul Buchheit, the founder of Gmail, had the idea to run ads within Google's e-mail service, but he and others say it was Susan Wojcicki, with the backing of Sergey Brin, who organized the team that adapted that idea into an enormously successful product. By early 2005 AdSense accounted for an estimated 15 percent of Google's total revenues. In 2009, Google AdSense announced that it would now be offering new features, including the ability to "enable multiple networks to display ads". In February 2010, Google AdSense started using search history in contextual matching to offer more relevant ads. On January 21, 2014, Google AdSense launched Direct Campaigns, a tool where publishers may directly sell ads; this feature was retired on February 10, 2015. The content-based advertisements can be targeted for users with certain interest or contexts.
The targeting can be CPC or CPM based, the only significant difference in CPC and CPM is that with CPC targeting, earnings are based on clicks while CPM earnings are based not just per views/impression but on a larger scale, per thousand impression, therefore driving it from the market, which makes CPC ads more common. There are various ad sizes available for content ads; the ads can be simple text, animated image, flash video, video, or rich media ads. At most ad sizes, users can change whether to show just one of them; as of November 2012, a grey arrow appears beneath AdSense text ads for easier identification. Google made a policy update regarding the number of ads per page, the three ads per page limit has been removed. AdSense for search allows publisher to display ads relating to search terms on their site and receive 51% of the revenue generated from those ads. AdSense custom search ads can be displ
Fiji the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean about 1,100 nautical miles northeast of New Zealand's North Island. Its closest neighbours are Vanuatu to the west, New Caledonia to the southwest, New Zealand's Kermadec Islands to the southeast, Tonga to the east, the Samoas and France's Wallis and Futuna to the northeast, Tuvalu to the north. Fiji consists of an archipelago of more than 330 islands—of which 110 are permanently inhabited—and more than 500 islets, amounting to a total land area of about 18,300 square kilometres; the most outlying island is Ono-i-Lau. The two major islands, Viti Levu and Vanua Levu, account for 87% of the total population of 898,760; the capital, Suva, on Viti Levu, serves as the country's principal cruise-ship port. About three-quarters of Fijians live on Viti Levu's coasts, either in Suva or in smaller urban centres such as Nadi—where tourism is the major local industry—or Lautoka, where the sugar-cane industry is paramount.
Due to its terrain, the interior of Viti Levu is sparsely inhabited. The majority of Fiji's islands formed through volcanic activity starting around 150 million years ago; some geothermal activity still occurs today, on the islands of Vanua Taveuni. The geothermal systems on Viti Levu are non-volcanic in origin, with low-temperature surface discharges. Sabeto Hot Springs near Nadi is a good example. Humans have lived in Fiji since the second millennium BC—first Austronesians and Melanesians, with some Polynesian influences. Europeans visited Fiji from the 17th century onwards, after a brief period as an independent kingdom, the British established the Colony of Fiji in 1874. Fiji operated as a Crown colony until 1970. A military government declared a Republic in 1987 following a series of coups d'état. In a coup in 2006, Commodore Frank Bainimarama seized power; when the High Court ruled the military leadership unlawful in 2009, President Ratu Josefa Iloilo, whom the military had retained as the nominal Head of State, formally abrogated the 1997 Constitution and re-appointed Bainimarama as interim Prime Minister.
In 2009, Ratu Epeli Nailatikau succeeded Iloilo as President. After years of delays, a democratic election took place on 17 September 2014. Bainimarama's FijiFirst party won 59.2% of the vote, international observers deemed the election credible. Fiji has one of the most developed economies in the Pacific thanks to its abundant forest and fish resources, its currency is the Fijian dollar, its main sources of foreign exchange are its tourist industry, remittances from Fijians working, bottled water exports. The Ministry of Local Government and Urban Development supervises Fiji's local government, which takes the form of city and town councils. Fiji's main island is known as Viti Levu and it is from this that the name "Fiji" is derived, though the common English pronunciation is based on that of their island neighbours in Tonga, its emergence can be described as follows: Fijians first impressed themselves on European consciousness through the writings of the members of the expeditions of Cook who met them in Tonga.
They were described as formidable warriors and ferocious cannibals, builders of the finest vessels in the Pacific, but not great sailors. They inspired awe amongst the Tongans, all their Manufactures bark cloth and clubs, were valued and much in demand, they called their home Viti, but the Tongans called it Fisi, it was by this foreign pronunciation, first promulgated by Captain James Cook, that these islands are now known. "Feejee", the Anglicised spelling of the Tongan pronunciation, was used in accounts and other writings until the late 19th century, by missionaries and other travellers visiting Fiji. Located in the central Pacific Ocean, Fiji's geography has made it both a destination and a crossroads for migrations for many centuries. According to oral tradition, the indigenous Fijians of today are descendants of the chief Lutunasobasoba and those who arrived with him on the Kaunitoni canoe. Landing at what is now Vuda, the settlers moved inland to the Nakauvadra mountains. Though this oral tradition has not been independently substantiated, the Fijian government promotes it, many tribes today claim to be descended from the children of Lutunasobasoba.
Pottery art from Fijian towns shows that Fiji was settled by Austronesian peoples before or around 3500 to 1000 BC, with Melanesians following around a thousand years although the question of Pacific migration still lingers. It is believed that the Lapita people or the ancestors of the Polynesians settled the islands first but not much is known of what became of them after the Melanesians arrived. Archeological evidence shows signs of settlement on Moturiki Island from 600 BC and as far back as 900 BC. Aspects of Fijian culture are similar to the Melanesian culture of the western Pacific but have a stronger connection to the older Polynesian cultures. Trade between Fiji and neighbouring archipelagos long before European contact is testified by the canoes made from native Fijian trees found in Tonga and Tongan words being part of the language of the Lau group of islands. Pots made in Fiji have been found in Samoa and the Marquesas Islands. In the 10th century, the Tu'i Tonga Empire was established in Tonga, Fiji came within its sphere of influence.
The Tongan influence brought Polynesian cu
Blogger is a blog-publishing service that allows multi-user blogs with time-stamped entries. It was developed by Pyra Labs, bought by Google in 2003; the blogs are hosted by Google and accessed from a subdomain of blogspot.com. Blogs can be served from a custom domain owned by the user by using DNS facilities to direct a domain to Google's servers. A user can have up to 100 blogs per account. Up until May 1, 2010, Blogger allowed users to publish blogs to their own web hosting server, via FTP. All such blogs had to be changed to either use a blogspot.com subdomain, or point their own domain to Google's servers through DNS. On August 23, 1999, Blogger was launched by Pyra Labs; as one of the earliest dedicated blog-publishing tools, it is credited for helping popularize the format. In February 2003, Pyra Labs was acquired by Google under undisclosed terms; the acquisition allowed premium features to become free. In October 2004, Pyra Labs' co-founder, Evan Williams, left Google. In 2004, Google purchased Picasa.
On May 9, 2004, Blogger introduced a major redesign, adding features such as web standards-compliant templates, individual archive pages for posts and posting by email. On August 14, 2006, Blogger launched its latest version in beta, codenamed "Invader", alongside the gold release; this migrated users to Google servers and had some new features, including interface language in French, Italian and Spanish. In December 2006, this new version of Blogger was taken out of beta. By May 2007, Blogger had moved over to Google-operated servers. Blogger was ranked 16 on the list of top 50 domains in terms of number of unique visitors in 2007. On February 24, 2015, Blogger announced that as of late March it will no longer allow its users to post sexually explicit content, unless the nudity offers "substantial public benefit," for example in "artistic, documentary, or scientific contexts." On February 28, 2015, accounting for severe backlash from long-term bloggers, Blogger reversed its decision on banning sexual content, going back to the previous policy that allowed explicit images and videos if the blog was marked as "adult".
As part of the Blogger redesign in 2006, all blogs associated with a user's Google Account were migrated to Google servers. Blogger claims. Along with the migration to Google servers, several new features were introduced, including label organization, a drag-and-drop template editing interface, reading permissions and new Web feed options. Furthermore, blogs are updated dynamically, as opposed to rewriting HTML files. In a version of the service called Blogger in Draft, new features are tested before being released to all users. New features are discussed in the service's official blog. In September 2009, Google introduced new features into Blogger as part of its tenth-anniversary celebration; the features included a new interface for post editing, improved image handling, Raw HTML Conversion, other Google Docs-based implementations, including: Adding location to posts via geotagging. Post time-stamping at publication, not at original creation. Vertical re-sizing of the post editor; the size is saved in a per-blog preference.
Link editing in compose mode. Full Safari 3 support and fidelity on both Windows and macOS. New Preview dialog that shows posts in a width and font size approximating what is seen in the published view. Placeholder image for tags so that embeds are movable in compose mode. New toolbar with Google aesthetics, faster loading time, "undo" and "redo" buttons added the full justification button, a strike-through button, an expanded color palette. In 2010, Blogger redesigned its website; the new post editor was criticized for being less reliable than its predecessor. As of late 2016, Blogger is available in these 60 languages: Afrikaans, Arabic, Bengali, Catalan, Chinese, Croatian, Danish, English, Estonian, Finnish, Galician, Greek, Hebrew, Hungarian, Indonesian, Japanese, Korean, Lithuanian, Malayalam, Norwegian, Polish, Portuguese, Russian, Slovak, Spanish, Swahili, Tamil, Thai, Ukrainian, Urdu and Zulu. Starting in February 2013, Blogger began integrating user blogs with multiple country-specific URLs.
For example, exampleuserblogname.blogspot.com would be automatically redirected to exampleuserblogname.blogspot.ca in Canada, exampleuserblogname.blogspot.co.uk in the United Kingdom. Blogger explained that by doing this they could manage the blog content more locally so if there was any objectionable material that violated a particular country's laws they could remove and block access to that blog for that country through the assigned ccTLD while retaining access through other ccTLD addresses and the default Blogspot.com URL. If a blog using a country-specific URL was removed it is still technically possible to access the blog through Google's No Country Redirect override by entering the URL using the regular Blogspot.com address and adding /ncr after.com. In May 2018, Blogger stopped redirecting to ccTLDs and country-specific URLs would now redirect to the default Blogspot.com addresses. Blogger allows its users to choose from various templates and customize them. Users may c
Web hosting service
A web hosting service is a type of Internet hosting service that allows individuals and organizations to make their website accessible via the World Wide Web. Web hosts are companies that provide space on a server owned or leased for use by clients, as well as providing Internet connectivity in a data center. Web hosts can provide data center space and connectivity to the Internet for other servers located in their data center, called colocation known as Housing in Latin America or France; until 1991, the Internet was restricted to use only...for research and education in the sciences and engineering... and was used for email, telnet, FTP and USENET traffic - but only a tiny number of web pages. The World Wide Web protocols had only just been written and not until the end of 1993 would there be a graphical web browser for Mac or Windows computers. After there was some opening up of internet access, the situation was confused until 1995. To host a website on the internet, an individual or company would need their own server.
As not all companies had the budget or expertise to do this, web hosting services began to offer to host users' websites on their own servers, without the client needing to own the necessary infrastructure required to operate the website. The owners of the websites called webmasters, would be able to create a website that would be hosted on the web hosting service's server and published to the web by the web hosting service; as the number of users on the World Wide Web grew, the pressure for companies, both large and small, to have an online presence grew. By 1995, companies such as GeoCities and Tripod were offering free hosting; the most basic is web page and small-scale file hosting, where files can be uploaded via File Transfer Protocol or a Web interface. The files are delivered to the Web "as is" or with minimal processing. Many Internet service providers offer this service free to subscribers. Individuals and organizations may obtain Web page hosting from alternative service providers.
Free web hosting service is offered by different companies with limited services, sometimes supported by advertisements, limited when compared to paid hosting. Single page hosting is sufficient for personal web pages. Personal web site hosting is free, advertisement-sponsored, or inexpensive. Business web site hosting has a higher expense depending upon the size and type of the site. Many large companies that are not Internet service providers need to be permanently connected to the web to send email, etc. to other sites. The company may use the computer as a website host to provide details of their goods and services and facilities for online orders. A complex site calls for a more comprehensive package that provides database support and application development platforms; these facilities allow customers to write or install scripts for applications like forums and content management. Secure Sockets Layer is used for websites that wish to keep the data transmitted more secure. Internet hosting services can run Web servers.
The scope of web hosting services varies greatly. One's website is placed on the same server as many other sites, ranging from a few sites to hundreds of websites. All domains may share a common pool of server resources, such as RAM and the CPU; the features available with this type of service can be quite basic and not flexible in terms of software and updates. Resellers sell shared web hosting and web companies have reseller accounts to provide hosting for clients. Allows clients to become web hosts themselves. Resellers could function, for individual domains, under any combination of these listed types of hosting, depending on who they are affiliated with as a reseller. Resellers' accounts may vary tremendously in size: they may have their own virtual dedicated server to a colocated server. Many resellers provide a nearly identical service to their provider's shared hosting plan and provide the technical support themselves. Known as a Virtual Private Server, divides server resources into virtual servers, where resources can be allocated in a way that does not directly reflect the underlying hardware.
VPS will be allocated resources based on a one server to many VPSs relationship, however virtualisation may be done for a number of reasons, including the ability to move a VPS container between servers. The users may have root access to their own virtual space. Customers are sometimes responsible for patching and maintaining the server or the VPS provider may provide server admin tasks for the customer; the user gains full control over it. One type of dedicated hosting is unmanaged; this is the least expensive for dedicated plans. The user has full administrative access to the server, which means the client is responsible for the security and maintenance of his own dedicated server; the user is not allowed full control over it. The user is disallowed full control so that the provider can guarantee quality of service by not allowing the user to modify the server or create configuration problems; the user does not own the server. The server is leased to the client. Similar to the dedicated web hosting service.
Geotagging or GeoTagging, is the process of adding geographical identification metadata to various media such as a geotagged photograph or video, websites, SMS messages, QR Codes or RSS feeds and is a form of geospatial metadata. This data consists of latitude and longitude coordinates, though they can include altitude, distance, accuracy data, place names, a time stamp. Geotagging can help users find a wide variety of location-specific information from a device. For instance, someone can find images taken near a given location by entering latitude and longitude coordinates into a suitable image search engine. Geotagging-enabled information services can potentially be used to find location-based news, websites, or other resources. Geotagging can tell users the location of the content of a given picture or other media or the point of view, conversely on some media platforms show media relevant to a given location; the related term geocoding refers to the process of taking non-coordinate based geographical identifiers, such as a street address, finding associated geographic coordinates.
Such techniques can be used together with geotagging to provide alternative search techniques. Geotagging has become a popular feature on several social media platforms, such as Facebook and Instagram. Facebook users can geotag photos that can be added to the page of the location they are tagging. Users may use a feature that allows them to find nearby Facebook friends, by generating a list of people according to the location tracker in their mobile devices. Instagram uses a map feature; the map layout pin points specific photos. The geographical location data used in geotagging will, in every case, be derived from the global positioning system, based on a latitude/longitude-coordinate system that presents each location on the earth from 180° west through 180° east along the Equator and 90° north through 90° south along the prime meridian. There are two main options for geotagging photos. In order to capture GPS data at the time the photograph is captured, the user must have a camera with built in GPS or a standalone GPS along with a digital camera.
Because of the requirement for wireless service providers in United States to supply more precise location information for 911 calls by September 11, 2012, more and more cell phones have built-in GPS chips. Most smart phones use a GPS chip along with built-in cameras to allow users to automatically geotag photos. Others may have the GPS chip and camera but do not have internal software needed to embed the GPS information within the picture. A few digital cameras have built-on or built-in GPS that allow for automatic geotagging. Devices use A-GPS or both. A-GPS can be faster getting an initial fix if within range of a cell phone tower, may work better inside buildings. Traditional GPS does not need cell phone towers and uses standard GPS signals outside of urban areas. Traditional GPS tends to use more battery power. Any digital camera can be coupled with a stand-alone GPS and post processed with photo mapping software, to write the location information to the image's exif header. GPS coordinates may be represented in text in a number of ways, with more or fewer decimals: With photos stored in JPEG, TIFF and many other file formats, the geotag information, storing camera location and sometimes heading, is embedded in the metadata, stored in Exchangeable image file format or Extensible Metadata Platform format.
These data are not visible in the picture itself but are read and written by special programs and most digital cameras and modern scanners. Latitude and longitude are stored in units of degrees with decimals; this geotag information can be read by many programs, such as the cross-platform open source ExifTool. An example readout for a photo might look like: GPS Latitude: 57 deg 38' 56.83" N GPS Longitude: 10 deg 24' 26.79" E GPS Position: 57 deg 38' 56.83" N, 10 deg 24' 26.79" E or the same coordinates could be presented as decimal degrees: GPS GPS Longitude: 10.40744 GPS Position: 57.64911 10.40744 When stored in Exif, the coordinates are represented as a series of rational numbers in the GPS sub-IFD. Here is a hexadecimal dump of the relevant section of the Exif metadata: + | 0) GPSVersionID = 2 2 0 0 | - Tag 0x0000: | dump: 02 02 00 00 | 1) GPSLatitudeRef = N | - Tag 0x0001: | dump: 4e 00 | 2) GPSLatitude = 57 38 56.83 | - Tag 0x0002: | dump: 00 00 00 39 00 00 00 01 00 00 00 26 00 00 00 01 | dump: 00 00 16 33 00 00 00 64 | 3) GPSLongitudeRef = W | - Tag 0x0003: | dump: 57 00 | 4) GPSLongitude = 10 24 26.79 | - Tag 0x0004: | dump: 00 00 00 0a 00 00 00 01 00 00 00 18 00 00 00 01 | dump: 00 00 0a 77 00 00 00 64 In the field of remote sensing the geotagging goal is to store coordinates of every pixel in the image.
One approach is used with the orthophotos where we store coordinates of four corners and all the other pixels can be georeferenced by interpolation. The four corners are stored using World file standards. Hyperspectral images take a different approach defining a separate file of the same spatial dimensions as the image where latitude and longitude of each pixe
Evan Williams (Internet entrepreneur)
Evan Clark Williams is an American computer programmer and Internet entrepreneur who has founded several Internet companies. Williams was chairman and CEO of Twitter, one of the top ten websites on the Internet, he founded Blogger and Medium, two of the largest and most notable blog distribution websites. Williams was born in Nebraska, as the third child of Laurie Howe and Monte Williams, he grew up on a farm in Clarks. He attended the University of Nebraska–Lincoln for a year and a half, where he joined FarmHouse Fraternity, leaving to pursue his career. After leaving college, Williams worked at various technology jobs and start-up firms in Florida, at Key West, in Texas, at Dallas and Austin, before returning to his family farm in Nebraska. In 1996 Williams moved to Sebastopol, California in Sonoma County to work for the technology publishing company O'Reilly Media, he started at O'Reilly in a marketing position becoming an independent contractor writing computer code, which led to freelance opportunities with companies including Intel and Hewlett-Packard.
While he was working at O'Reilly, he started a website called EvHead.com, where he first began blogging about his personal thoughts. Evan Williams and Meg Hourihan co-founded Pyra Labs to make project management software. A note-taking feature spun off as Blogger, one of the first web applications for creating and managing weblogs. Williams coined the term "blogger" and was instrumental in the popularization of the term "blog". Pyra survived the departure of Hourihan and other employees, was acquired by Google on February 13, 2003. In 2003, Williams was named to the MIT Technology Review TR100 as one of the top 100 innovators in the world under the age of 35. In 2004, he was named one of PC Magazine's "People of the Year", along with Hourihan and Paul Bausch, for their work on Blogger. Williams left Google in June 2004, to a podcast company. In late 2006, Williams co-founded Obvious Corporation with Biz Stone and other former Odeo employees, to acquire all previous properties from Odeo's former backers.
In April 2007, Odeo was acquired by Sonic Mountain. Among Obvious Corporation's projects was Twitter, a popular, free social networking and micro-blogging service. Twitter was spun out into a new company in April 2007, with Williams as co-founder, board member, investor. In October 2008, Williams became CEO of Twitter, displacing Jack Dorsey, who became chairman of the board. By February 2009, Compete.com ranked Twitter the third most-used social network, based on their count of 6 million unique monthly visitors and 55 million monthly visits. As of February 2013, Twitter had 200 million registered users, it gets 300,000 new users a day and, was ranked twelfth in the world. It receives more than 300 million unique visitors and more than five billion people in traffic a month. 75% of its traffic comes from outside of Twitter.com. In October 2010, Williams stepped down from the CEO position, explaining that he would be "completely focused on product strategy," and appointed Dick Costolo as his replacement.
Following the announcement of Twitter's initial public offering in 2013, the company was valued at between US$14 billion and US$20 billion. One media report anticipated that Williams, with a 30 to 35 percent stake in the company, would see his personal wealth grow from US$2 billion to US$8 billion in the wake of Twitter's stock flotation. On April 6, 2017, an article announced Williams would sell 30 percent of his stock in Twitter, for "personal reasons." On September 25, 2012, Williams created Medium. It was available only to early adopters, but was opened to the public in 2013. On April 5, 2013, Williams and Stone announced that they would be unwinding Obvious Corporation as they focused on individual startups. Williams presented at the 2013 XOXO Festival in Portland and explained his understanding of Internet commerce. During his XOXO session, Williams likened the Internet to "a lot of other major technological revolutions that have taken place in the history of the world," such as agriculture, asserted that the Internet is not a utopia.
Williams is a vegetarian. He lives in the San Francisco area with his wife, with whom he raises two children. Williams has been quoted as having a philosophy that it is important to conserve time, do fewer things, to avoid distractions. Despite having a net worth higher than USD $1B, having a reputation for media business savvy, none of Williams' notable businesses have been profitable. After Donald Trump credited his election to the use of Twitter, Evan Williams stated that if true, he was sorry, he was concerned that the Internet platform rewarded extremes. Williams told the Associated Press that he was wrong to think that an open platform where people could speak would make the world a better place, his musings about future business objectives include considerations about the effect of the Internet upon society. Evan Williams @ Medium Evan Williams on Twitter