Algol 68 interpreter
The development of Algol played an important role in establishing computer science as an academic discipline. The Algol 68 Genie project preserves Algol 68 out of educational as well as scientific-historical interest, by making available Algol 68 Genie; a recent, well-featured implementation written from scratch. Algol 68 Genie is a practically full implementation of the language defined by the Revised Report. The implementation is a hybrid compiler-interpreter; units with considerable interpreter-overhead can optionally be compiled.