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When the technology was founded: Around 1860 when the first QWERTY-keyboard was developed.
Why the technology will be around for another 20 years: The keyboard is in practically every device there is - even to the mobile device and television remotes. For some time, the keyboard was restricted to simply the word processor and the computer. It took a while for mobile devices to take advantage of the QWERTY keyboard style on handsets.
However, innovative technologies allow a wider breadth of input into computers and mobile devices. But even with touch technology, arguably spurred on by tablets and touch-screen phones like the iPad and iPhone, the keyboard still reigns as the most natural and innate input device for all to use.
When the technology was founded: Microsoft Office was first released in fall 1990 for Windows 3.0.
Why the technology will be around for another 20 years: Without doubt, Microsoft Office is one of the most used, and understandably the most expensive office and productivity suite of programs on the market. Because of its userbase in the hundreds of millions, ranging from large corporations to governments, it is almost as widely used as Windows itself.
But the one thing that hinders it the most is that bar the Office:mac edition, it only runs on the Windows platform. As so many people use Office as a document standard, it all but forces out competitors as its market dominates further.
There is a good reason why it has become what it is. Not only does it dole out everything that one needs in an office suite, but has always maintained its version history to each major release of the platforms it is supplied on; both Windows and Mac OS X.
Office will, in my opinion, no doubt survive for the next 20 years on any platform that Windows becomes or evolves into.