History of Microsoft -- 1975

In 1975, a nineteen year old kid and his twenty-two year old business partner sold their first program to a little computer company in Albuquerque, New Mexico. The program was called BASIC, and it was the start of this company we call Microsoft. 1975 History of Microsoft Timeline:January 1, 1975The MITS Altair 8800 appears on the cover of Popular Electronics. The article inspires Paul Allen and Bill Gates to develop a BASIC language for the Altair.February 1, 1975Bill Gates and Paul Allen complete Altair BASIC and sell it to Microsoft's first customer, MITS of Albuquerque, New Mexico. This is the first computer language program for a personal computer.March 1, 1975Paul Allen joins MITS as director of software.April 7, 1975"Altair BASIC -- Up and Running," declares the headline of the first edition of MITS Computer Notes.July 1, 1975Bill Gates' and Paul Allen's BASIC officially ships as version 2.0 in both 4K and 8K editions.July 22, 1975Paul Allen and Bill Gates sign a licensing agreement with MITS regarding the Basic Interpreter. The name Microsoft has not yet been chosen, and Microsoft is not yet an official partnership.July 29, 1975In a letter to Paul Allen, Bill Gates uses the name "Micro-soft" to refer to their partnership. This is the earliest known written reference.December 31, 1975The 1975 year-end sales total equals 16,005 dollars, as detailed on Form 1065 U.S. Partnership Return of Income.