Integrated circuit layout was added with the CADDS-2 product. CADDS-2 included a new operating system, user expandability and a 32-bit database through a dedicated programming language, ran on 1200 computers on Data General Nova. CADDS3 was introduced on CGP100 and the CGP80 in the late 1970s, was written in Fortran. Other improvements including a B-spline package, refresh performance. This version of CADDS moved display technology from storage tube base. The major breakthrough was on the CGP200X with the CADDS4X.
A 1984 cluster of CGP200X was offered as the Computervision. CADDS production continued into the twenty-first century. The time became the first CAD user in Construction industry and the UK Civil Engineering. The two versions had the development language and a slightly different file format. Prime was divided into the two main divisions, based in Mass. in Natick. CV introduced an IBM, 4361-based mainframe was Sun's first large customer for Unix. The CDS5000 was networked with CGP200X systems and CDS4000. The CDS3000 series of workstations were actually Sun-2 systems from CV with additional graphics hardware. PTC sold MPDS Plant Design System software rights and the MEDUSA to CAD Schroer. Mervyn Richards became later lead to distribution and the development. The first higher educational user of Computervision equipment was at New York at Alfred. Alfred State graduated first AAS Computer Graphics Engineering Technology Graduates with Martin Allen in 1983. 75 job offers launching a 20-year history of unparalleled placement success.