In computing, a theme is a preset package containing graphical appearance details. A theme comprises a set of shapes and colors for the graphical control elements, the window decoration and the window. Themes are used to customize the look and feel of a piece of computer software or of an operating system. Themes are used to change the look and feel of a wide range of things at once, which makes them much less granular than allowing the user to set each option individually. For example, you might want the window-borders from a particular theme, but installing it would alter your desktop background. One method for dealing with this is to allow the user to select which parts of the theme they want to load. Microsoft Windows Microsoft Windows supported themes since Windows 98; this operating system and its successor, Windows ME, came with themes that customized desktop backgrounds, user interface colors, Windows sounds and mouse cursors. A separate application package called Plus! for Windows 95 added the same features to Windows 95.
Windows XP expanded Windows theme support by adding Windows XP visual styles and allowing each theme to specify one. This feature was carried over to Windows Vista, which added Windows Aero, but was removed again with Windows 8. Third-party apps such as WindowBlinds, TuneUp Utilities and Desktop Architect enhance theme capabilities. Support for custom themes can be added by patching system files, which Microsoft does not endorse. Linux Linux operating systems may support themes depending on their window managers and desktop environments. IceWM uses themes to customize its taskbar, window borders, time format. WindowMaker can store colors for icons and window-borders in a theme, but this is independent of the wallpaper settings. GNOME and KDE use two independent sets of themes: one to alter the appearance of user interface elements, another theme to customize the appearance of windows. MacOS MacOS does not natively support themes. Third-party apps such as Kaleidoscope and ShapeShifter may add this.
Android Although Android OS does not support themes, the forked CyanogenMod OS has native theme support. The CM theme engine is in turn used on many other forked Android ROMs like Paranoid. Firefox and Google supported a form of theme. Firefox supports themes either through complete themes. While lightweight themes are background images for toolbar Firefox toolbars, complete themes have more power to modify Firefox's appearance. Google Chrome version 3.0 or allows themes to alter the appearance of the browser. Internet Explorer 5 and its immediate successor allowed the background picture of their toolbars to be customized. Skin Computer wallpaper Look and feel User interface engineering Industrial design Aqua
In computing, a web application or web app is a client–server computer program which the client runs in a web browser. Common web applications include webmail, online retail sales, online auction; the general distinction between a dynamic web page of any kind and a "web application" is unclear. Web sites most to be referred to as "web applications" are those which have similar functionality to a desktop software application, or to a mobile app. HTML5 introduced explicit language support for making applications that are loaded as web pages, but can store data locally and continue to function while offline. Single-page applications are more application-like because they reject the more typical web paradigm of moving between distinct pages with different URLs. Single-page frameworks like Sencha Touch and AngularJS might be used to speed development of such a web app for a mobile platform. There are several ways of targeting mobile devices when making a web application: Responsive web design can be used to make a web application - whether a conventional website or a single-page application viewable on small screens and work well with touchscreens.
Progressive Web Apps are web applications that load like regular web pages or websites but can offer the user functionality such as working offline, push notifications, device hardware access traditionally available only to native mobile applications. Native apps or "mobile apps" run directly on a mobile device, just as a conventional software application runs directly on a desktop computer, without a web browser. Frameworks like React Native, Flutter and FuseTools allow the development of native apps for all platforms using languages other than each standard native language. Hybrid apps embed a mobile web site inside a native app using a hybrid framework like Apache Cordova and Ionic or Appcelerator Titanium; this allows development using web technologies while retaining certain advantages of native apps. In earlier computing models like client–server, the processing load for the application was shared between code on the server and code installed on each client locally. In other words, an application had its own pre-compiled client program which served as its user interface and had to be separately installed on each user's personal computer.
A lock screen is a computer user interface element used by various operating systems. They regulate immediate access to a device by requiring that the user perform a certain action in order to receive access, such as entering a password, using a certain button combination, or performing a certain gesture using a device's touchscreen. While most lock functions on PC operating systems only utilize a login screen, lock screens on mobile devices provide more functionality beyond unlocking the phone: such as notifications for emails and text messages, a date and time display, or shortcuts to certain applications. Mobile operating system that run on smartphones and tablets use a gesture based lock-screen. Phones manufactured by Neonode were unlocked by swiping to the right on its touchscreen. Apple's iOS, used by the iPhone and iPad lines, utilized a similar unlock mechanism until iOS 10, with an on-screen slider slid to the right. Beginning on iOS 5, sliding in the other direction sends the user directly to the camera app.
On iOS 7, the slider widget was removed as part of a larger overhaul of the iOS interface, users could now swipe from any point of the screen. The lock screen displays a clock and provides audio playback controls. IOS 10 made major changes to the lock screen by removing the swiping gesture for accessing the home screen. Swiping is still used to access the camera, as well as an additional page to the left with widgets; the iPhone X uses a swipe up gesture to access the home screen once authenticated, as it does not have a physical home button. At first, Android did not use a gesture-based lock screen, electing to require the user to press the phone's Menu button. On Android 2.0, a new gesture-based lock screen was introduced, displaying two icons: one for unlocking the phone, one for setting the volume mode, activated by dragging the relevant icon to the center of the screen on a curve. On Android 2.1, the rotary dial was replaced by two tabs on either end of the screen. Android 3.0 introduced a new design: a ball with a padlock icon is dragged to the outside of a circular area.
On 4.0, the option to unlock straight to the camera is provided, while 4.1 adds the ability to unlock into a Google Search screen by dragging up. Android 4.2 makes additional changes to the lock screen, allowing users to add widgets to pages accessible on the lock screen by swiping from the left edge of the screen. The camera is accessed in a similar manner by swiping from the right edge of the screen. Android allows devices to be locked using a password, passcode, a pattern on a grid of 9 circles, fingerprint sensing, or with facial recognition. Android distributions by other manufacturers use different lock screen designs than what stock Android utilizes. On recent Samsung devices, the lock screen involves dragging in any direction from any location on the screen; some apps may contain adware which hijacks the default lock screen to replace it with one that displays advertising. In November 2017, Google Play Store banned non-lock screen apps from monetizing the lock screen. Windows NT has offered the ability for users to "lock" their computers by displaying a login window, which requires that the active user's password be entered to re-gain access to the system.
Since Windows XP, the lock function has been bound to the keyboard shortcut ⊞ Win+L. On Windows 8, the lock screen was re-designed to closer resemble those used by mobile operating systems; the screen can be dragged upwards with a touchscreen to unlock the device. Windows 10 maintains this design, whilst adding the ability to use the Cortana voice assistant from the lock screen, support for slide shows and the "Windows Spotlight" service to retrieve daily wallpapers and optionally receive promotional suggestions related to the wallpaper. Screen locking functionality is built into screensaver systems on some Unix-like operating systems, such as XScreenSaver and gnome-screensaver. Apple holds several patents related to the sliding lock screen used by its iOS devices: it was granted U. S. Patent 7,657,849 in 2010, U. S. Patent 8,046,721 in 2011, describing a system that involves continuously dragging an image to a certain point to unlock the device; as part of ongoing patent wars between numerous companies surrounding patents related to mobile devices, Apple asserted these patents in several patent infringement lawsuits outside the United States with competing vendors.
Apple's lawsuits with Samsung in the Netherlands and HTC in the United Kingdom both led to failure: both courts ruled the patents to be invalid, citing the similar lock screen on the N1, a mobile phone manufactured by the Swedish company Neonode, as prior art for Apple's design. The British court ruled that Apple's lock screen was an "obvious improvement" over that of the Neonode N1 due to its additional visual feedback through an on-screen slider graphic. Early work on touchscreen technology from the University of Maryland Human – Computer Interaction Lab was cited as prior art, in particular a 1991 tou
IOS 12 is the twelfth and current major release of the iOS mobile operating system developed by Apple Inc. being the successor to iOS 11. It was announced at the company's Worldwide Developers Conference on June 4, 2018, it is similar in aesthetics to iOS 11 but contains numerous performance and battery life improvements and security updates, in addition to added functionalities within native applications. It was released to the public on September 17, 2018. IOS 12 was introduced by Craig Federighi at the Apple Worldwide Developers Conference keynote address on June 4, 2018; the first developer beta version was released after the keynote presentation, with the first public beta releasing three weeks after on June 25, 2018. IOS 12.0.1 was released on October 8, 2018, as the first update to iOS 12. IOS 12.1 was released on October 30, 2018. The update included new emoji, the Group FaceTime feature, L3/R3 button support for MFi controllers, updates to the Measure app, the ability to use an eSIM on the iPhone XS Max, iPhone XS, iPhone XR. iOS 12.1.1 was released on December 5, 2018.
IOS 12.1.2 was released on December 17, 2018, is an iPhone-only update. IPads and the 6th generation iPod touch continued to use iOS 12.1.1. IOS 12.1.3 was released on January 22, 2019, featured important bug fixes patching all known kernel exploits. IOS 12.1.4 was released on February 7, 2019, featured an important bug fix concerning Group FaceTime. IOS 12.2 was contained an updated News app and 51 security fixes. This update patched the hyphen bug and added support for the 2nd Generation AirPods. Performance optimizations were made in order to speed up common tasks across all supported iOS devices. Tests done by Apple on an iPhone 6 Plus showed apps launching 40 percent faster, the system keyboard activating 50 percent faster, the camera opening 70 percent faster. Screen Time is a new feature in iOS 12; the feature displays the amount of time the user used particular apps, the amount of time the user used particular categories of apps, the number of notifications the user received. Screen Time provides blocking features to limit usage of apps or set other restrictions such as on purchases or explicit content.
It replaces Parental Controls in the iOS Settings app, but can be used by adults to limit their own usage. These features can be used without a passcode. Without setting a passcode, the limits can be bypassed but may serve as a useful reminder of usage goals. A dedicated application in iOS 12 allows users to set up Shortcuts, automated actions that the user can ask Siri to perform, it replaces the Workflow app that Apple acquired in March 2017. ARKit now allows users to share their view with other iOS 12-supported devices. ARKit 2 additionally allows full 2D image tracking and incorporates the ability to detect 3D objects. CarPlay can now run third-party navigation applications; the Voice Memos and Stocks apps are now available for iPads. Control Center is separated from the app switcher on iPad and can be opened with a swipe down on the top right corner. In addition, iPhone X-style gestures are introduced across all iPads running iOS 12. In iOS 12, the trackpad mode is enabled by long-pressing the space bar on devices without 3D Touch.
For devices with gesture navigation and no home button, users can now force quit applications by swiping up from the bottom of the screen. Messages in iOS 12 introduces a new type of customizable Animoji called "Memoji" which allows a user to create a 3D character of themselves. Apple introduced Koala, Ghost and T-Rex Animojis. In addition, Apple added new text and GIF effects similar to those found on other social media applications. FaceTime gains support for Animoji and Memoji, as well as new text and GIF effects similar to those found on other social media applications and in the Messages application.iOS 12.1, released on October 30, 2018, adds the ability to include up to 32 people in a FaceTime conversation. This feature is only supported with video by devices with the Apple Apple A9 chip or later. Group FaceTime was disabled on January 28, 2019 due to a software bug that allowed calls to be answered by the caller rather the recipient, allowing video and audio to transmitted unless the call was declined.
The functionality was restored on February 7, 2019 with the release of iOS 12.1.4. Group FaceTime remains disabled on devices running earlier versions of iOS 12. Measure is a new native AR application, it works as a level, a feature, packaged as part of the Compass app. Apple Photos has been redesigned with four new tabs, including "Photos", "For You", "Albums", "Search"; the new "For You" tab replaces the "Memories" tab found in iOS 11 and makes sharing recommendations, creates short length video collages, photo editing suggestions, as well as featured photos from a specific day. While the "Photos" and "Albums" tabs received only a few cosmetic changes, the "Search" tab includes new Artificial Intelligence and Machine Learning features which show the user photos by place and categories. Notifications are now grouped by application and have a "manage" button to turn off notifications for that app or to deliver them right from the notification center without having to go into the Settings application.
The iPhone 3GS is a smartphone, designed and marketed by Apple Inc. It is the third generation iPhone, successor to the iPhone 3G, it was introduced on June 8, 2009, at the WWDC 2009 which took place at the Moscone Center, San Francisco. This iPhone is named "3GS". Improvements include performance, a 3-megapixel camera with higher resolution and video ability, voice control, support for 7.2 Mbit/s HSDPA downloading. It was released in the United States and six European countries on June 19, 2009, in Australia and Japan on June 26, internationally in July and August 2009; the iPhone 3GS runs Apple's iOS operating system. It was succeeded as Apple's flagship smartphone in 2010 by the iPhone 4; the iPhone 3GS was made available for pre-order on June 7, 2009 and released on June 19 in the United States, 7 European countries, on June 26 in Australia and the United Kingdom. Within the first weekend of its release, over one million iPhone 3GS units were sold; the new features of the iPhone 3GS are internal changes regarding speed.
The iPhone 3GS is 2x faster than its predecessor. Though in addition to the upgrades regarding performance, various software features were introduced exclusive to the iPhone 3GS such as video recording, voice control and digital compass; the iPhone 3GS features Apple's mobile operating system. The user interface of iOS is based on the concept of direct manipulation, using multi-touch gestures. Interface control elements consist of sliders and buttons. Interaction with the OS includes gestures such as swipe, tap and reverse pinch, all of which have specific definitions within the context of the iOS operating system and its multi-touch interface. Internal accelerometers are used by some applications to respond to shaking the device or rotating it vertically; the LCD display on the device was designed by Apple and made by LG. It features a capacitive touchscreen with a pixel density of 163 pixels per inch on a 3.5 in 480-by-320 display. Improvements over its predecessor's screen include 24-bit color emulation for a more color rich display and oleophobic coating to help reduce fingerprints on the display.
The capacitive touchscreen is designed for a bare finger, or multiple fingers for multi-touch sensing. The iPhone 3GS features an improved 3-megapixel camera manufactured by OmniVision. In addition to the higher pixel count, it features auto-focus, auto white balance and auto macro and is capable of capturing VGA video; the iPhone 3GS's camera app features a slider which allows users to switch between capturing photos and recording videos, a tap-to-focus feature which allows users to tap on an area of the camera image to auto-focus on, 5x digital zoom, auto focus and auto exposure lock when holding an area down, gridlines for composition. The iPhone 3GS is powered by the Samsung APL0298C05 chip, designed and manufactured by Samsung; this is the first iPhone with a system-on-a-chip. This system-on-a-chip is composed of an ARM Cortex-A8 CPU core underclocked to 600 MHz, integrated with a PowerVR SGX 535 GPU, it has 256 MB of package on package DRAM, twice the amount of the 3G, allowing for increased performance and multi-tasking.
Apple claims the iPhone 3GS is 2x faster than its predecessor, showing demonstrations of various apps loading in half the time its predecessor does. As on previous models, all data is stored in flash memory and not in the SIM and it does not offer any options to expand storage, it was only available in 16 and 32 GB though an 8 GB model was released, with Apple discontinuing the 16 and 32 GB models, forcing those needing more storage to select an iPhone 4, or buy an older model 3GS. The iPhone 3GS is powered by an internal 3.7 V 1220 mAh rechargeable lithium-ion polymer battery and is designed to retain up to 80% of its original capacity after 400 full charge and discharge cycles. A battery life indicator in percentage was exclusive to the iPhone 3GS. Apple claims that the 3GS can last for up to ten hours of video, nine hours of web browsing on Wi-Fi, twelve hours of 2G talk time, or five on 3G, 30 hours of music, or 300 hours of standby. A magnetometer is built-in the iPhone 3GS, used to measure the strength and/or direction of the magnetic field in the vicinity of the device.
Sometimes certain devices or radio signals can interfere with the magnetometer requiring users to either move away from the interference or re-calibrate by moving the device in a figure 8 motion. The iPhone 3GS features a Compass app, unique at time of release, showing a compass that points in the direction of the magnetic field. In addition to the iPhone 3G's Tri-band UMTS/HSDPA radio and quad-band GSM/GPRS/EDGE radio, the 3GS adds support for 7.2 Mbit/s HSDPA allowing faster downlink speeds though upload speeds remain the same as Apple had not implemented the HSUPA protocol. Other updates include the addition of a built-in Nike+iPod sensor which eliminates the need for an external sensor and allows native Nike+iPod support; the Bluetooth server on the iPhone 3GS has been improved adding support for Bluetooth 2.1 specifications. Voice Control was introduced as an exclusive feature of the iPhone 3GS and allows for the controlling of the phone and music features of the p
Mac OS X Lion
Mac OS X Lion is the eighth major release of Mac OS X, Apple's desktop and server operating system for Macintosh computers. A preview of Mac OS X 10.7 Lion was publicly shown at the "Back to the Mac" Apple Special Event on October 20, 2010. It brought many developments made in Apple's iOS, such as an navigable display of installed applications, to the Mac, includes support for the Mac App Store, as introduced in Mac OS X Snow Leopard version 10.6.6. On February 24, 2011, the first developer's preview of Lion was released to subscribers to the Apple Developer program. Other developer previews were subsequently released, with Lion Preview 4 being released at WWDC 2011. Lion was released to manufacturing on July 1, 2011, followed by its final release via the Mac App Store on July 20, 2011. Apple reported over one million Lion sales on the first day of its release; as of October 2011, Mac OS X Lion had sold over six million copies worldwide. Lion is the final release whose development was overseen by Bertrand Serlet, considered the "founding father of Mac OS X".
On June 6, 2011, at the Apple Worldwide Developers Conference, it was announced that the official release for Lion would be in July 2011. The specific release date of July 20 was not confirmed until the day before, July 19, by Apple CFO, Peter Oppenheimer, as part of Apple's 2011 third-quarter earnings announcement. Apple did not announce any physical media distribution for Lion, such as a set of CD-ROMs or a DVD-ROM as used for past releases. Instead, the operating system was said to be available as a download from the Mac App Store for US$29.99. The only prior version of OS X that supports the Mac App Store is Snow Leopard, which implied that any machines that support Lion running Tiger or Leopard would first have to be upgraded to Snow Leopard, as opposed to allowing a direct upgrade to Lion. Apple announced two alternative distribution mechanisms for the benefit of users without broadband Internet access: in-store downloads at retail Apple Stores, a USB flash drive containing the OS, priced at US$69, available through the online Apple Store beginning in August.
On August 4, 2011, Apple started to take orders for Mac OS X Lion's USB installation flash drives for $69.99. The Server portion of Lion is available as a separate download from the Mac App Store for US$49.99, in addition to the purchase price of Lion itself. In July 2012, Lion was removed from the Mac App Store and retail Apple stores following the release of OS X Mountain Lion. Following the removal of Lion from the Mac App Store, customers could still purchase Lion by phone at the reduced price of $20. In October 2013, Lion was returned to the Apple Store website concurrently with Mountain Lion following the release of OS X Mavericks for the convenience of users who cannot run Mavericks on older Mac models; the first developer preview of Lion added TRIM support for Solid-state drives shipped with Macs, included in the latest version of Snow Leopard shipping with current MacBook Pros before July 20, 2011. Other SSDs have built-in TRIM-like optimization. X86-64 CPU At least 2 GB of memory Mac OS X 10.6.6 or 7 GB of available space AirDrop is supported on the following Mac models: MacBook Pro, MacBook Air, MacBook, iMac, Mac Mini, Mac Pro.
Some new features were announced at the "Back to the Mac" keynote in October 2010, the Apple website was updated in February 2011, with more details. Other features were announced at the WWDC 2011 keynote or on Apple's Mac OS X Lion Web site after the keynote. Apple states that there are over 250 new or changed features in Lion, including: Address Book uses an iPad-like user interface, it includes improved Yahoo support and FaceTime calling. AirDrop – Lion-to-Lion direct file sharing via Wi-Fi Direct, with no wireless access point required. Address space layout randomization – Address space layout randomization, a security technique that puts important data in unpredictable locations, making it harder to target known weaknesses, is available for 32-bit applications, "has been improved for all applications", in Lion. Apple Push Notification Service – Send over-the-air alerts, such as news updates or social networking status changes, using Apple's Push Notification service to applications that support APNS.
APNS allows Mac OS X Lion and iOS clients to receive push changes to items such as mail and contacts from a configured OS X Lion Server. Auto-correction behaves much like on iOS devices. Auto Save – As in iOS, documents in applications written to use Auto Save are saved automatically so users do not have to worry about manually managing their documents; the Auto Save feature alters traditional workflow patterns and is a controversial addition to the system. Emoji support – Apple has added a new Emoji font used in chat to express ideograms. Exposé in the Dock, a way of activating Exposé for a single application from the Dock, a feature added in Mac OS X 10.6, is altered. One must double-tap with two fingers on a dock icon to initiate single-application Exposé, or right-click or control-click and select Show All Windows. FaceTime comes bundled with Lion. FileVault added security with XTS-AES 128 data encryption. Support for FileVault on external hard drives has been added. Finder improvements – Finder search allows multiple search criteria to be sp
IPhone is a line of smartphones designed and marketed by Apple Inc. All generations of the iPhone use Apple's iOS mobile operating system software; the first-generation iPhone was released on June 29, 2007, multiple new hardware iterations with new iOS releases have been released since. The user interface is built around the device's multi-touch screen, including a virtual keyboard; the iPhone can connect to cellular networks. An iPhone can shoot video, take photos, play music and receive email, browse the web and receive text messages, follow GPS navigation, record notes, perform mathematical calculations, receive visual voicemail. Other functionality, such as video games, reference works, social networking, can be enabled by downloading mobile apps; as of January 2017, Apple's App Store contained more than 2.2 million applications available for the iPhone. Apple has released twelve generations of iPhone models, each accompanied by one of the twelve major releases of the iOS operating system.
The original first-generation iPhone was a GSM phone and established design precedents, such as a button placement that has persisted throughout all releases and a screen size maintained for the next four iterations. The iPhone 3G added 3G network support, was followed by the 3GS with improved hardware, the 4 with a metal chassis, higher display resolution and front-facing camera, the 4S with improved hardware and the voice assistant Siri; the iPhone 5 featured Apple's newly introduced Lightning connector. In 2013, Apple released the 5S with improved hardware and a fingerprint reader, the lower-cost 5C, a version of the 5 with colored plastic casings instead of metal, they were followed by the larger iPhone 6, with models featuring 4.7-and-5.5-inch displays. The iPhone 6S was introduced the following year, which featured hardware upgrades and support for pressure-sensitive touch inputs, as well as the SE—which featured hardware from the 6S but the smaller form factor of the 5S. In 2016, Apple unveiled the iPhone 7 and 7 Plus, which add water resistance, improved system and graphics performance, a new rear dual-camera setup on the Plus model, new color options, while removing the 3.5 mm headphone jack found on previous models.
The iPhone 8 and 8 Plus were released in 2017, adding a glass back and an improved screen and camera. The iPhone X was released alongside the 8 and 8 Plus, with its highlights being a near bezel-less design, an improved camera and a new facial recognition system, named Face ID, but having no home button, therefore, no Touch ID. In September 2018, Apple again released 3 new iPhones, which are the iPhone XS, an upgraded version of the since discontinued iPhone X, iPhone XS Max, a larger variant with the series' biggest display as of 2018 and iPhone XR, a lower end version of the iPhone X; the original iPhone was described as "revolutionary" and a "game-changer" for the mobile phone industry. Subsequent iterations of the iPhone have garnered praise; the iPhone is one of the most used smartphones in the world, its success has been credited with helping Apple become one of the world's most valuable publicly traded companies. Development of what was to become the iPhone began in 2004, when Apple started to gather a team of 1,000 employees to work on the confidential "Project Purple."
Apple CEO Steve Jobs steered the original focus away from a tablet towards a phone. Apple created the device during a secretive collaboration with Cingular Wireless at the time—at an estimated development cost of US$150 million over thirty months. According to Steve Jobs, the "i" word in "iMac" stands for internet, instruct and inspire. Apple rejected the "design by committee" approach that had yielded the Motorola ROKR E1, a unsuccessful collaboration with Motorola. Among other deficiencies, the ROKR E1's firmware limited storage to only 100 iTunes songs to avoid competing with Apple's iPod nano. Cingular gave Apple the liberty to develop the iPhone's hardware and software in-house and paid Apple a fraction of its monthly service revenue, in exchange for four years of exclusive US sales, until 2011. Jobs unveiled the iPhone to the public on January 9, 2007, at the Macworld 2007 convention at the Moscone Center in San Francisco; the two initial models, a 4 GB model priced at US$499 and an 8 GB model at US$599, went on sale in the United States on June 29, 2007, at 6:00 pm local time, while hundreds of customers lined up outside the stores nationwide.
The passionate reaction to the launch of the iPhone resulted in sections of the media dubbing it the'Jesus phone'. Following this successful release in the US, the first generation iPhone was made available in the UK, Germany in November 2007, Ireland and Austria in the spring of 2008. On July 11, 2008, Apple released the iPhone 3G including the original six. Apple released the iPhone 3G in upwards of eighty territories. Apple announced the iPhone 3GS on June 8, 2009, along with plans to release it in June and August, starting with the US, Canada and major European countries on June 19. Many would-be users objected to the iPhone's cost, 40% of users had household incomes over US$100,000; the back of the original first generation iPhone was made of aluminum with a black plastic accent. The iPhone 3G and 3GS feature a full plastic back to increase the strength of the GSM signal; the iPhone 3G was available in