How Did Microsoft Begin? | Early Vision

Understanding the origins of a company like Microsoft offers a valuable lesson in how foundational ideas, technical skill, and strategic timing can converge to shape an entire industry. It’s a study in how early computing pioneers laid the groundwork for the digital tools we use daily, demonstrating the power of a clear vision combined with persistent execution.

The Spark of an Idea: Gates and Allen

The story of Microsoft starts with the shared passion of two childhood friends, Bill Gates and Paul Allen, growing up in Seattle, Washington. Their fascination with computers began early, during their time at Lakeside School.

At Lakeside, Gates and Allen gained access to a Teletype terminal connected to a General Electric (GE) mainframe computer. This early exposure allowed them to spend countless hours learning to program, developing their skills far beyond typical high school students.

Their initial ventures into commercial programming included forming “Traf-O-Data” in 1972. This small company used a computer to process and analyze raw traffic count data for local governments, providing a practical application for their technical abilities.

By 1974, Gates was a student at Harvard University, while Allen worked as a programmer for Honeywell in Boston. Their paths diverged briefly, but their shared interest in microcomputing remained a strong bond, setting the stage for their future collaboration.

The Altair 8800 and a Crucial Interpreter

A pivotal moment arrived in January 1975 with the publication of Popular Electronics magazine. The cover story featured the Altair 8800, a microcomputer kit developed by Micro Instrumentation and Telemetry Systems (MITS).

Paul Allen recognized the Altair’s potential, but also saw its limitation: a lack of user-friendly software. Programming the Altair directly involved flipping switches on its front panel, a cumbersome process. Allen believed a BASIC interpreter, a program allowing users to write instructions in a higher-level language, would make the Altair accessible to a wider audience.

Allen showed the magazine to Gates, and they contacted MITS, falsely claiming they had a BASIC interpreter nearly ready for the Altair’s Intel 8080 processor. This audacious move secured an invitation for a demonstration.

Working intensely for eight weeks, Gates and Allen developed the Altair BASIC interpreter. They used a PDP-10 mainframe at Harvard, simulating the Altair’s 8080 processor. Monte Davidoff, a fellow Harvard student, contributed by writing the floating-point routines, essential for mathematical calculations.

In March 1975, Allen flew to Albuquerque, New Mexico, where MITS was based, to demonstrate their software. The interpreter ran successfully on the Altair, a significant achievement that validated their efforts and the potential of microcomputer software.

From Albuquerque to Microsoft’s Official Founding

Following the successful demonstration, MITS agreed to license Altair BASIC. This agreement provided the initial revenue stream for Gates and Allen’s new venture.

Bill Gates made the decision to take a leave of absence from Harvard, and Paul Allen left his position at Honeywell. They formally established their company on April 4, 1975, in Albuquerque, New Mexico.

The founders initially named their company “Micro-Soft,” a portmanteau combining “microcomputer” and “software.” This name succinctly captured their core business objective: creating software for the burgeoning microcomputer market. The hyphen was dropped within a year.

Microsoft’s early business model centered on licensing its programming languages to hardware manufacturers. This approach allowed them to distribute their software widely across different computer systems without needing to produce their own hardware.

The first employees included Ric Weiland and Marc McDonald, joining Gates and Allen to expand the company’s development capabilities. Their focus remained on creating essential software tools for the rapidly evolving personal computer industry.

Early Growth and the Move to Washington

Microsoft continued to expand its offerings beyond Altair BASIC. They developed versions of BASIC for other microprocessors, including the MOS 6502 and the Zilog Z80, adapting their core product to various hardware platforms. This adaptability was key to their early market penetration.

The company also began developing other programming languages, such as FORTRAN and COBOL compilers, providing more sophisticated tools for professional programmers working on microcomputers. This expansion demonstrated their commitment to being a comprehensive software provider.

By 1978, Microsoft’s team had grown to 13 employees, and the company’s sales reached over $1 million. The small office in Albuquerque was becoming insufficient for their expanding operations and talent needs.

In January 1979, Microsoft relocated its headquarters from Albuquerque to Bellevue, Washington. This move placed the company closer to a larger talent pool, offered a better quality of life for employees, and provided proximity to Bill Gates’s family and established networks in the Pacific Northwest.

The new location facilitated further growth and allowed Microsoft to attract more skilled developers, solidifying its position as a significant player in the software industry.

Table 1: Key Milestones in Early Microsoft

Year	Event	Significance
1975	Altair BASIC Demonstration	First product, validated microcomputer software market
1975	Microsoft Founded	Formal establishment of the company in Albuquerque
1979	Relocation to Bellevue	Strategic move for talent and growth
1980	IBM PC Deal	Pivotal agreement leading to MS-DOS dominance

The IBM Partnership and MS-DOS

A truly transformative moment for Microsoft occurred in 1980 when IBM approached them for an operating system for its upcoming Personal Computer (IBM PC). IBM had initially sought an operating system from Digital Research, creators of CP/M, the dominant OS at the time, but negotiations faltered.

Microsoft, despite not having an operating system of its own, recognized the immense opportunity. They recommended CP/M to IBM, but IBM preferred to deal with Microsoft directly for all software needs.

In a strategic move, Microsoft purchased QDOS (Quick and Dirty Operating System) from Seattle Computer Products (SCP) for $50,000. QDOS was a CP/M clone developed by Tim Paterson. Microsoft then adapted and refined QDOS, renaming it MS-DOS (Microsoft Disk Operating System).

The agreement with IBM was groundbreaking. Microsoft licensed MS-DOS to IBM for the IBM PC, but crucially, Microsoft retained the right to license MS-DOS to other hardware manufacturers. This non-exclusive licensing model proved to be a strategic masterstroke.

When the IBM PC launched in August 1981 with MS-DOS as its operating system, it quickly became a standard. The ability for other computer manufacturers to license MS-DOS from Microsoft led to a proliferation of “IBM PC compatible” machines, solidifying MS-DOS as the industry standard operating system for personal computers.

Table 2: Early Microsoft Products

Product	Type	Initial Impact
Altair BASIC	Programming Language Interpreter	Made the Altair 8800 programmable for enthusiasts
MS-DOS	Operating System	Became the standard OS for IBM PC compatibles
Multiplan	Spreadsheet Software	Microsoft’s early competitor to VisiCalc and Lotus 1-2-3
Microsoft Word	Word Processor	Introduced graphical features, initially for Xenix and Mac

The Rise of Windows

Even with the success of MS-DOS, Microsoft recognized the limitations of a text-based command-line interface. They understood the growing demand for a more intuitive, graphical user interface (GUI) to make computers accessible to a broader audience.

Inspired by pioneering work at Xerox PARC and the subsequent graphical interfaces of the Apple Lisa and Macintosh, Microsoft began developing its own GUI. They announced “Interface Manager” in 1983, which was later renamed Microsoft Windows.

Windows 1.0 was officially released in November 1985. It was not a standalone operating system but rather a graphical operating environment that ran on top of MS-DOS. It offered a visual shell with features like tiled windows, mouse support, and basic productivity applications.

Initial adoption of Windows 1.0 was slow. The hardware requirements were demanding for the time, and competing graphical environments existed. Microsoft continued to refine the product, learning from early user feedback and technical challenges.

The release of Windows 3.0 in May 1990 marked a turning point. With improved performance, a more appealing interface, and widespread software support from third-party developers, Windows 3.0 gained significant market traction. This version established Windows as a dominant platform, paving the way for its widespread adoption in subsequent years.

Beyond Operating Systems: Expansion and Vision

Microsoft’s financial standing solidified with its initial public offering (IPO) in March 1986. The stock offering created substantial wealth for its founders and many early employees, providing capital for further expansion and research.

The company continued to diversify its product portfolio far beyond programming languages and operating systems. Microsoft developed application software that would become industry standards, including Microsoft Word and Microsoft Excel, initially released for the Macintosh platform before their Windows versions.

Microsoft also ventured into hardware, producing computer mice and keyboards to complement its software offerings. This demonstrated a commitment to providing a complete computing experience.

Early forays into networking and server software laid the foundation for Microsoft’s later dominance in enterprise computing. The company’s vision expanded from simply putting “a computer on every desk and in every home” to integrating computing into every facet of work and personal life.

This period saw Microsoft solidify its position as a technology giant, consistently innovating and adapting its strategies to meet the evolving demands of the digital world. The company’s origins, rooted in the collaboration of two friends and a shared passion for software, provided a robust foundation for decades of growth and influence.