ZOPL is a

programming language A programming language is a system of notation for writing computer programs. Most programming languages are text-based formal languages, but they may also be graphical. They are a kind of computer language. The description of a programming ...

created by

Geac Computer Corporation Geac Computer Corporation, Ltd ( and ) was a producer of enterprise resource planning, performance management, and industry specific software based in Markham, Ontario. It was acquired by Golden Gate Capital's Infor unit in March 2006 for US$1 bil ...

in the early 1970s for use on their

mainframe computer A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterpris ...

systems used in libraries and banking institutions. It had similarities to C and

Pascal Pascal, Pascal's or PASCAL may refer to: People and fictional characters * Pascal (given name), including a list of people with the name * Pascal (surname), including a list of people and fictional characters with the name ** Blaise Pascal, Fren ...

. ZOPL stood for "Version Z, Our Programming Language".Or... "Our Programming Language, with a Z" http://hopl.info/showlanguage.prx?exp=2641&language=ZOPL ZOPL is still in use at

CGI Group CGI Inc. is a Canadian multinational information technology consulting and systems integration company headquartered in Montreal, Quebec, Canada. CGI has a market value of $21.8 billion, making it one of the top 30 companies in Canada. The co ...

(formerly known as RealTime Datapro), who ported it to

VAX/VMS OpenVMS, often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing, batch processing, transaction processing and workstation A workstation is a special c ...

and

Unix Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and ot ...

in the 1980s, and to

Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for serv ...

in 1998. by 2010 it had been ported to run on Windows XP/2000/2003 and

Red Hat Linux Red Hat Linux was a widely used Commercial software, commercial Open-source software, open-source Linux distribution created by Red Hat until its discontinuation in 2004. Early releases of Red Hat Linux were called Red Hat Commercial Linux. R ...

. The RTM (formerly ZUG) language compiler and runtime framework are written in ZOPL. Outside of CGI, ZOPL has not been in general use since the late 1980s, although there is still one known working system where it is found embedded in programs written in the KARL programming language.

References

Procedural programming languages Programming languages created in the 1970s {{Compu-lang-stub