AutoCAD is a commercial computer-aided design (CAD) and drafting software application. Developed and marketed by Autodesk, AutoCAD was first released in December 1982 as a desktop app running on microcomputers with internal graphics controllers. Before AutoCAD was introduced, most commercial CAD programs ran on mainframe computers or minicomputers, with each CAD operator (user) working at a separate graphics terminal. AutoCAD is also available as mobile and web apps.
AutoCAD is used in industry, by architects, project managers, engineers, graphic designers, city planners and other professionals. It was supported by 750 training centers worldwide in 1994.
Brigg (/'brɪg/) is a small market town in North Lincolnshire, England, with a population of 5,076 in 2,213 households (2001 UK census), the population increasing to 5,626 at the 2011 census. The town lies at the junction of the River Ancholme and east–west transport routes across northern Lincolnshire. As a formerly important local centre, the town's full name of Glanford Brigg is reflected in the surrounding area and local government district of the same name. The town's urban area includes the neighbouring hamlet of Scawby Brook.