The R1000 was a

workstation A workstation is a special computer designed for technical or scientific applications. Intended primarily to be used by a single user, they are commonly connected to a local area network and run multi-user operating systems. The term ''workstat ...

released in 1985 by

Rational Software Rational Machines is an enterprise founded by Paul Levy and Mike Devlin in 1981 to provide tools to expand the use of modern software engineering practices, particularly explicit modular architecture and iterative development. It changed its ...

for the design, documentation, implementation, and maintenance of large software systems written using the

Ada programming language Ada is a structured, statically typed, imperative, and object-oriented high-level programming language, extended from Pascal and other languages. It has built-in language support for '' design by contract'' (DbC), extremely strong typing, expl ...

. The R1000 featured an extensive tool set, including: * an Ada-83-compatible program design language * an

integrated development environment An integrated development environment (IDE) is a software application that provides comprehensive facilities to computer programmers for software development. An IDE normally consists of at least a source code editor, build automation tools ...

that doubled as an operating system

shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science Biology * Seashell, a hard o ...

* automatic generation of design documentation * source-language debugging * interactive design-rule checking and semantic analysis * incremental compilation * configuration management and version control. Optimizing code generators and cross-debuggers provided support for several popular application architectures. As a successor to the R1000, Rational produced a new IDE called Rational Apex. Rational Apex took many of the features that the R1000 introduced and extended (ported) them onto commonly available workstations from Sun Microsystems and IBM. Several R1000 units exist in museums and private collections, but, because of the classified nature of much Ada programming, these units had been wiped; efforts have been made to boot one of these systems, with little or no luck as of 2013. On 28 October 2019 the DataMuseum.dk successfully got one unit back into running condition.

References

External links

Evaluation of the Rational Environment
report on analysis of the R1000 by

Software Engineering Institute The Software Engineering Institute (SEI) is an American research and development center headquartered in Pittsburgh, Pennsylvania. Its activities cover cybersecurity, software assurance, software engineering and acquisition, and component capabi ...

Rational Announces Shipment of Apex 3.0 With Integrated Family of ProductsUse of the Rational R1000 Ada development environment for an IBM based command and control system
by Charles B. Williams, 1987 Integrated development environments Computer workstations Ada (programming language) {{Soft-eng-stub