Development of ARCHICAD started in 1982 for Apple Lisa, the predecessor of the original Apple Macintosh. Following its launch in 1987, with Graphisoft's "Virtual Building" concept, ARCHICAD became regarded by some as the first implementation of BIM. ARCHICAD has been recognized as the first CAD product on a personal computer able to create both 2D and 3D geometry, as well as the first commercial BIM product for personal computers and considered "revolutionary" for the ability to store large amounts of information within the 3D model. Today, it has over 120,000 users.