In 1960, a team of computer scientists developed a programming language known as the Common Business-Oriented Language. The developers wanted to make it a platform-independent language. In the same year, The DEC PDP-1 computer system became available. Each system includes a cathode ray tub graphic display and paper tape input/output.
In 1963, IBM released the DAC-1, the first commercial Computer Aided Design program available. Also in this year, Ivan Sutherland of the Massachusetts Institute of Technology released a real-time computer drawing system called the Sketchpad. This system let users draw with a light pen on a computer screen. Ken Knowlton developed BEFLIX, a computer language for animation that allowed users to create and animate computer images.