R.R. Software, founded in 1980, was the first company to implement the then new Ada programming language on a microcomputer. The company is now the oldest independent vendor of Ada products in the world. The product, dubbed Janus/Ada, today has more than 35,000 users worldwide and continues to be the only compiler on the market that is written in Ada and self compiled in a personal computer environment. Over the years, Janus/Ada has led the industry with a number of significant achievements. It was the first validated Ada compiler for the Intel 8086-based systems, for MS-DOS computers, as well as under the POSIX standard. The first Ada compiler for Microsoft Windows Toolkit and the first Ada 95 compiler for Microsoft Windows NT are the most recent examples of the company s. Lockheed Engineering and Sciences is one of R.R. Software s industry clients. The company is located in Madison, Wis.