Scheme is a general-purpose computer programming language. It is a high-level language, supporting operations on structured data such as strings, lists, and vectors, as well as operations on more traditional data such as numbers and characters. While Scheme is often identified with symbolic applications, its rich set of data types and flexible control structures make it a truly versatile language. Scheme programs are highly portable across versions of the same Scheme implementation on different machines, because machine dependencies are almost completely hidden from the programmer. They are also portable across different implementations because of the efforts of a group of Scheme language designers who have published a series of reports, the "Revised Reports" on Scheme.
define hello-world (lambda () (begin (write ‘Hello-World) (newline) (hello-world))))