Alef Programming Language is an Concurrent Programming Language.

ABCL is a Actor based concurrent language develeop in japan in 1980's a and 1990's. There are many ABCL languages available one of them is ABCD/C+ language.

Autohotkey is a scripting language which allows the user to create the script to automate the repetitive task in Microsoft windows.

AWK is an interpreted programming language designed for searching files for lines that contain certain pattern.