At Orthogonal Programming we have software development skills that go beyond the familiar modern languages and technologies like C/C++, Java, Visual Basic and C#. Here are some of the other skills available with the 25 years of Orthogonal Programming experience:

Mainframes

From 1981 to 1993 Greg was a systems programming and assembler specialist on Fujitsu and IBM mainframes running OS/X8, OS/F4, MVS and OS/390. Greg wrote some legendary applications and operating system extensions in assembly language, some of which were still in use 12 years after they were written. Interestingly, eight years after leaving the mainframe world behind, the old skills were vitally useful when Greg was required to implement and test a Java product inside USS (UNIX Systems Services) inside an OS/390 mainframe.

COBOL

Greg has used almost every version of COBOL available from Honeywell, Fujitsu, IBM, Microsoft, Acusoft and Microfocus between 1977 and 1993. Development platforms have included Windows, OS/2 and UNIX.

OS/2 & REXX

From 1995-1997 Greg worked on a small team developing a cinema ticketing system under OS/2. REXX and Visual REXX were used extensively. Greg used OS/2 as one of his primary PC operating systems from 1992-1995, eventually dropping it due to poor driver availability and the release of a stable 32-bit version of Windows.

FORTRAN

Greg's first programming language in 1974, not used since the late 70s, but still a sentimental favourite.

ALGOL

Few people in the IT industry would have heard about this obscure language, but it was a revolutionary language that set the style for later languages such as Pascal and Visual Basic. In the days when FORTRAN ruled supreme for all students and scientists, ALGOL was far superior, but it was sadly neglected and never gained the fame it deserved. The most stunning thing about ALGOL was that it was written with a structured, indented block coding style, as opposed to the far more popular FORTRAN language that (back then) was written in long vertical slabs.