1978


 * January: Jef Raskin and Brian Howard join Apple Computer as employees #31 and #32, respectively.
 * January 30: Early Apple employee Chris Espinosa sketches Apple Computer's second workplace.
 * April 10: Apple Computer signs a $13,000 contract with Shepardson Microsystems to develop a Disk Operating System (DOS) for the Disk II drive and Apple II computer.
 * April 27: Future Macintosh development team member Bill Atkinson joins Apple Computer as employee #51.
 * May: Charles Mauro joins Apple Computer as employee #57.
 * June: The Disk II is released.
 * December: Bob Bishop is recruited by Steve Wozniak to join Apple Computer as employee #187.