a single physical computer can perform the functions of several virtual computers, usually referred to as Virtual Machines (VMs). Organizations implement virtual machines in an effort to reduce the number of physical servers needed to provide the necessary services to users. This reduction in the number of physical servers also reduces the demand for electricity to run and cool the physical servers. For more detail on how virtualization works, see this informational page from VMWare. Software Creation
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Example program “Hello World” written in Java Modern software applications are written using a programming language such as Java, Visual C, C++, Python, etc. A programming language consists of a set of commands and syntax that can be organized logically to execute specific functions. Using this language, a programmer writes a program (known as source code) that can then be compiled into machine-readable form, the ones and zeroes necessary to be executed by the CPU. Languages such as HTML and JavaScript are used to develop web pages. Open-Source Software When the personal computer was first released, computer enthusiasts banded together to build applications and solve problems. These computer enthusiasts were motivated to share any programs they built and solutions to problems they found. This collaboration enabled them to more quickly innovate and fix problems. Information Systems for Business and Beyond (2019) pg. 59
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