MUMPS
MUMPS is a high-level programming language known for its simplicity and rapid development capabilities. It is commonly utilized in healthcare systems, financial institutions, and other industries where high performance and robustness are crucial.
Hello, world code example:
Write "Hello world!",!
Popularity: Less than 1% of developers are using or have used this language.*
*According to StackOverflow's 2023 survey.
Repositories on GitHub: 2,681