Eventually the âtext-replaceâ nature of #define is going to bite you with a stray semicolon or other unexpected replace. Reference. For in-depth information on this subject, check out this thread in the Arduino Forums: Const vs #define â Arduino Forum.
Computer Software Definition. Software is a generic term for organized collections of computer data and instructions, often broken into two major categories: system software that provides the basic non-task-specific functions of the computer, and application software which is used by users to accomplish specific tasks.
âFree softwareâ means software that respects users' freedom and community. Roughly, it means that the users have the freedom to run, copy, distribute, study, change and improve the software. Thus, âfree softwareâ is a matter of liberty, not price.