The method of computer user interface using Tablet and Pen instead of mouse and key board is known as Pen Computing. Use of touch screen devices like Mobile phones, GPS, PDA etc using the Pen as input is also referred to as Pen Computing. Pen Computing essentially has a Stylus commonly known as the Pen and a hand writing detection device called Tablet. First Stylus called Styalator was used by Tom Dimond in 1957 as the computer input.
The system that performs the delivery of computing as a service over the network is the Cloud Computing. It is the service that provides shared resources and software information to the computers. In Cloud computing, computation, software, data access etc are provided to the end users. The end user can access the informations in the network without needing to understand the system’s components and infrastructure. The term cloud is used to represent the Internet system similar to the cloud drawing used in earlier telephone system to give point-to-point data circuits for the Virtual private network.
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Bio computing is the construction and use of computers that functions like living things or having biological components such as DNA. Bio computing is also used in bioinformatics to assist the biological research. Bio computing uses Bio computers which uses biologically derived molecules such as Proteins and DNA. These are used for computational calculations including data storage, data retrieve, data processing etc.
Touch screen is the modern great looking monitor screen that is becoming a new user interface and industrial standard worldwide. Touch screens are now everywhere and are embedded in Mobile phones, Office instruments, Remote controls, Medical equipments, ATMs etc. Touch screens provide a high level of security from tampering, durability from wear, weather resistant etc.