The document discusses the Apple Lisa Office System, which was an integrated office computer system released by Apple in January 1983. It consisted of the Apple Lisa hardware, an operating system, and a set of office applications that were designed to work together to create a powerful document processing workstation. A second section defines Apple DOS as the operating systems used for the Apple II series of microcomputers from 1978 to 1983. It was primarily developed by Paul Laughton, Randy Wigginton, and Steve Wozniak and the first release was Apple DOS 3.1 in June 1978.