The paper "Virtual Keyboard" is a great example of a research proposal on technology. The virtual keyboard is a projection of the QWERTY keyboard on a surface by means of laser beams (Jacko 40). A person is only required to click on the image and an electronic signal will be sent replicating the intended letter. Virtual Device Inc. has created a flashlight gadget to assist in the image projection of an actual keyboard. Virtual keyboards are an innovation from the QWERTY keyboard that used by all computers. The previous keyboard consisted of buttons and was wired to the computer which makes it difficult to move around.
Also, the revolution of today’ s computer trend has influenced the development of a virtual keyboard. This is occasioned by present-day smartphones, PDA which operate with a touch screen and hence the need for a virtual keyboard (Nagamalai 50). Unlike the previous keyboard the virtual keyboard also smaller characters making it easy to use. This has been achieved by displaying numerical and alphabetical characters separately. The virtual keyboard also allows users to write different languages meaning it can be applied all over the world without any hesitation as to language.
This paper looks in-depth about the virtual keyboard. It also describes the various virtual keyboards that are available to the users and, at the same time explains the advantages and disadvantages that accompany each type of virtual keyboard. 1.2 Historical Background Originally virtual keyboards were created for persons with disabilities. This was to help them to carry out daily activities without actually needing assistance from other people. This made them independent (Hirose 600). However, as we all know technology is dynamic meaning it is always progressing.
New gadgets such as smartphones, PDA’ s started cropping up which were touch screen and therefore differing from the regular phones that were characterized with button keypads (Kim 70). This meant that virtual keyboards were the preferred way to send commands to the gadgets compared to the voice command system. The voice command was not accurate and was limited to specific languages and thus the virtual keyboard proved the better option as it is accurate and allows multilingual (Sherman 100). The use of programs to predict letters by matching them with handwriting on a tablet has also proven inaccurate, leaving the virtual keyboard as the better option.
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Jacko, Julie A, ed. Human Computer Interaction Ambient: Ubiquitous and Intelligent Interaction. San Diego: Springer, 2009. Print.
Kim, G., and Gerard Jounghyun Kim. Designing Virtual Reality Systems: the Structured Approach. New York: Springer, 2005. Print.
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Nagamalai, Dhinaharan, Eric Renault, and Murugan Dhanuskodi. Trends in Computer Science, Engineering and Information Technology. New York: Springer, 2011. Print.
Sherman, William R, and Alan B Craig. Understanding Virtual reality: Interface, Application and Design. Massachusetts: Morgan Kaufman, 2003. Print.
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