Digitek
| Company type | Private |
|---|---|
| Industry | Software |
| Founded | 1960s |
| Founder | James R. Dunlap, Donald Ryan, Donald Peckham |
| Headquarters | Los Angeles , United States |
| Products | Programming language systems (compilers, runtime environments, intrinsic libraries) |
Digitek was a pioneering software systems firm located in Los Angeles, California, United States.
Established in the early 1960s by James R. Dunlap (President), Donald Ryan, and Donald Peckham (Vice Presidents)—all former colleagues at Hughes Aircraft Company in Culver City, California—Digitek specialized in creating numerous programming language systems, including compilers, runtime environments, and intrinsic libraries for a variety of manufacturers such as IBM and SDS. Throughout the 1960s, the company regularly promoted its offerings through advertisements in Scientific American and Datamation magazines.
The enterprise ceased operations following its inability to deliver the PL/I compiler promised for the Multics initiative, which resulted in a conflict with GE. Subsequently, Don Peckham was bought out; meanwhile, Don Ryan along with Dave McFarland—also an alumnus of Digitek—went on to establish Ryan−McFarland, where they continued advancing compiler technology.
History
Digitek’s initial compiler customer was Scientific Data Systems (SDS), a mainframe hardware manufacturer founded by Max Palevsky in 1961 and later acquired by Xerox in 1969.
The company developed language systems for prominent programming languages of that period, including FORTRAN, PL/I, SIMSCRIPT, COBOL, and BASIC. Among their offerings was the IBM System 360 G Level FORTRAN compiler. Digitek’s compilers were built around a virtual machine framework known as POPS ("Programmed Operators"), which facilitated rapid development and ensured a unified "footprint" across products.
This POPS architecture enabled Ryan-McFarland Corporation to leverage the surge of microcomputer adoption during the late 1970s and early 1980s by delivering POPS-based compilers tailored to emerging hardware vendors. Significant products included RM/COBOL and RM/BASIC designed for Tandy’s TRS-80 platform, as well as IBM Professional FORTRAN (and RM/FORTRAN) targeting MS-DOS environments. In 1987, Ryan-McFarland was acquired by Australian company Austec; subsequently, the POPS compiler technology was purchased by Language Processors, Inc. (later renamed Liant Software Corporation), which itself was acquired by Micro Focus International in 2008. This technology continues to be commercially available as RM/COBOL-85, with numerous applications based on this POPS COBOL still operational worldwide as of 2020.
Another example of POPS-based compilation was Lahey Computer Systems’ F77L Fortran 77 compiler for MS-DOS. Key figures such as Don Ryan, Thomas M. Lahey, Doug Ahl, Noel Vasquez, David McFarland, and Jack Perrine—who had developed the Univac 1108 Fortran V—were all part of Digitek’s team during overlapping periods.
Further reading
- Cocke, John; Schwartz, Jacob T., Programming Languages and their Compilers: Preliminary Notes, technical report from the Courant Institute of Mathematical Sciences, New York University, 1969. Contains an in-depth technical description of Digitek’s compiler methodology.