Facts. A tortuous colon isn't called that due to the pain it inflicts. In this instance, tortuous simply means having bends and twists.. While that's an apt description for all intestines, a tortuous colon, sometimes known as a redundant colon, simply means the colon is longer than usual.
Computer program, detailed plan or procedure for solving a problem with a computer; more specifically, an unambiguous, ordered sequence of computational instructions necessary to achieve such a solution.
A program is free software if the program's users have the four essential freedoms: The freedom to run the program as you wish, for any purpose (freedom 0). The freedom to study how the program works, and change it so it does your computing as you wish (freedom 1).