delphi 7

Delphi uses the language Pascal, a third generation structured language. It is what is called a highly typed language. This promotes a clean, consistent programming style, and, importantly, results in more reliable applications. Pascal has a considerable heritage:

Pascal appeared relatively late in the history of programming languages. It probably benefited from this, learning from Fortran, Cobol and IBM's PL/1 that appeared in the early 1960's. Niklaus Wirth is claimed to have started developing Pascal in 1968, with a first implementation appearing on a CDC 6000 series computer in 1970. It took its roots from the Algol-60 and Algol-W line of languages. These languages were designed to avoid the errors that could beset FØRTRAN and COBOL.

Curiously enough, the C language did not appear until 1972. C sought to serve quite different needs to Pascal. C was designed as a high level language that still provided the low level access that assembly languages gave. Pascal was designed for the development of structured, maintainable applications.

In 1975, Wirth teamed up with Jensen to produce the definitive Pascal reference book "Pascal User Manual and Report". Wirth moved on from Pascal in 1977 to work on Modula - the successor to Pascal.