"It is common for people to confuse these terms. While they are similar, there are subtle differences between them. My definition of these terms is that a computer program is a set of code that executes specific tasks. This typically takes the form of an application. Computer software is any code that performs a function on a computing device. These can include the operating system, drivers, system software, APIs, applications, and other code. Computer software includes computer programs, but computer programs don't always include all the software. Computer Software is more machine-centric, while computer programs are more user-centric. Is this how you use these terms here at Microsoft?"
