A computing platform defines the hardware and software that makes up a computer system. It is in general accepted to be synonymous with all the existing machines that are eligible to be called as a Computer.
Grid computing
Yes, cloud computing exists for Linux users. You can use almost any of the platforms with Linux.
"Distributed" or "grid" computing in general is a special type of parallel computing, it is advanced in the means of using distributed computing.
Computing platforms include a computer architecture, an operating system, and Runtime libraries. A computing platform is a place where software is launched and is essential in any computer functioning properly.
The R Project for Statistical Computing is a project that involves a free and open-source environment for statistics and graphing. It runs on a variety of different platforms, including UNIX and Windows.
NAT stands for Network Address Translation. The term "NAT" is the same across all computing platforms.
Try sales force site you can find it there or use the classical sites as amazon or eBay a cloud computing platform is easy to find so you shouldn't have a problem to buy it.
ICT applications in computing include software development, data analysis, network management, cloud computing, and cybersecurity. These applications leverage computing technology to support various business processes, communication platforms, and information management systems.
There is a good explanation of cloud computing at http://www.infoworld.com/d/cloud-computing/what-cloud-computing-really-means-031. I think you can learn most of what you need to know there.
Mobile computing simply means that computing tasks are performed outside the normal computing environment on a mobile computer (such as a laptop or notebook, or a PDA), rather than a computer that sits stationary on a desk in a room. Wireless computing means that data is sent from computer to computer through a wireless connection.
Integrated Computing Network
"Computing concept" is a term that means an idea or principle that has been actualized by a computer or the software that runs on it.