Microsoft Formed

Bill Gates & Paul AllenApril 4, 1975

Microsoft is founded as a partnership between Bill Gates, age 19, and Paul Allen, age 22, in Albuquerque, New Mexico. The company was created to develop the BASIC programming environment for the MITS Altair 8800. MITS was headquartered in Albuquerque so Gates and Allen moved there from Boston to launch their company. Eventually they decide to move Microsoft to the Seattle, Washington area, where both men were from originally and met in high school.

Microsoft’s First Hardware Product

Z-80 Card AdApril 2, 1980

Microsoft announces its first hardware product, the Z80 SoftCard. The SoftCard is a microprocessor that plugs into the Apple II personal computer allowing it to run programs written for the CP/M operating system. CP/M was a very popular OS for early personal computers along with much of the software written for it. In particular, the word processor WordStar is so popular that people will purchase the SoftCard and a companion “80-column card” just to run it on the Apple II. At one point, the SoftCard product will bring in about half of Microsoft’s total revenue. It will be discontinued in 1986 as CP/M’s popularity declined.