Bill Gates Reflects on the Origins of Microsoft Software

Bill Gates recently took a nostalgic journey back to the origins of Microsoft, sharing previously unpublished original source code on his personal blog. Gates reflected on the early, exhilarating days of Microsoft, underscoring a pivotal moment when he, alongside co-founder Paul Allen, reached out to MITS, the creators of the Altair 8800, proclaiming they had developed a version of BASIC for the Altair's chip.

This period marked the foundation of Microsoft, known initially as Micro-Soft, before the company decided to drop the hyphen. The development involved intense, tireless coding over two months, setting the tone for the future evolution of Microsoft.

The Humble Beginnings

Gates vividly recalls the early software endeavors as the cornerstone of what would become a multi-billion dollar enterprise. He describes the original source code as "the coolest code I've ever written," a testament to its lasting significance.

The software they developed for the Altair was not just a project; it embodied the ambition and vision that would propel Microsoft into becoming a dominant force in the tech world. This achievement also reflected their innovative spirit and willingness to take bold risks.

Evolution into Security Software

From its inception, Microsoft has continually expanded and adapted its range of software solutions. Among these developments is the famed MSE AV, often known as Microsoft Security Essentials AV. While originally breaking ground in operating systems and personal computing, Microsoft also pushed into security software to protect its technology ecosystem.

Products like MS A V and Microsoft Defender Software illustrate how Microsoft's initial passion for creating transformational software has persisted and evolved over the decades. These tools remain critical in ensuring user safety, demonstrating the importance of the security domain within Microsoft's extensive lineup.

Reflecting on this journey, Gates expresses pride in the impact and enduring legacy of Microsoft's software suite. The growth from coding BASIC for the Altair to developing sophisticated security solutions epitomizes the successful transition of Microsoft from a budding enterprise into a leading global tech leader with comprehensive offerings, including indispensable security applications.

Update: 23 Jun 2026