A language via which you give a computer a set of instructions. Instructions are organized into one or more human-readable text files. Interpreter, not compiler. Each line is read, translated into machine language, than executed. For compiled language, entire text file is read and translated, then stored.
Compiled programs are faster.
Compiled programs don't need compiler to run. Interpreter shipped along with AmigaDOS 2.0 and above. Port allows messages to and from a program. Commands and status through port. Automate complex text operations with Final Writer.