Touch screen software was initially used in kiosk systems, POS terminals, ATM's and on PDA's. With raising popularity of smart phones, modern PDA's, GPS's and portable game consoles (most notably Nintendo's DS), the demand for touch-screen technologies slowly increased. Early touch-screen displays could only sense a single point of input at a time and only a few of them were capable of detecting the strength of the pressure.
This was changed with Apples ongoing commercialization of the multi-touch technology with iPhone and iPod touch. Multi-touch allows the user to interact with the screen with fingers, instead of a stylus. The movement of fingers creates gestures, which are then sent to the touch screen software. Popularity of iPhone, has brought touch-screen technology to many smart phones and hand-held devices.
7 Lcd Touchscreen
Many companies have upgraded their products, either by adding a multi/touch support to the track-pad or by making their Tablet PC's interact-able without the stylus. Some companies specialize in production of large wall-mounted or table surfaces. Most notable are Microsoft's Surface and Perceptive Pixel's Multi-Touch Collaboration Wall.
Both wall mounted and table mounted displays have had a few ergonomic problems. "Gorilla arm" was a side effect, that destroyed wall mounted touch-screen as a mainstream. Developers of touch-screen systems, failed to notice, that humans are not built to hold their arms high for a long period of time, making small and precise motions at the same time. Table mounted displays do not share this problem, however, users can develop neck pain after using it for a period of time and their view is obstructed by their arms.
Many modern operating systems include touch screen software, supporting multi-touch as well:
Windows 7, Vista and XP Tablet PC Edition, Ubuntu, Google's Android, Palm's webOS and Xandros
With a combination of Windows 7 and a touch screen LCD monitor or laptop, you can just shuffle your files and folders, browse the web or flick through your album, just with your fingers.
Limited one-finger touch-screen capability has been available before, but Windows 7 is the first to deliver multi-touch. You can zoom in by placing your fingers on the screen and spread them apart. You can right "click" the file, by placing any finger on the screen and tapping the screen with the other. Start menu and the taskbar now have bigger, finger-friendly icons. All the programs included with Windows are also touch ready. You can even finger paint in Paint, with no additional touch screen software.
Many companies produce specialized touch screen software, either for specific devices or for general computers. You can expect, from any decent touch screen software, to support multi-touch and gestures. However even more intuitive approaches are being invented all the time. BumpTop desktop, for example, a desktop replacement for Windows and Mac, goes beyond standard gestures such as pan and zoom.
A recent survey performed by Canalys (26. January 2010) shows, there is a significant rise in demand for touch-screen computers, for both, users of laptops as well as home desktops. New hand-held devices are being created all the time and new technologies are emerging. Touch screen technology has had it's share of troubles, but it is here to stay.
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