The Day Two Friends Decided to Be at the Starting Point of the PC Era: Gates, Allen, and Microsoft
In 1968, a 13-year-old boy said to his 15-year-old friend: "Maybe one day we'll have our own company." We know exactly what happened to those words fifty years later. The company those two friends built together—Microsoft—is today one of the most valuable companies in the world.
Those two boys were Bill Gates and Paul Allen.
One Person Found the Starting Point
Bill Gates first met Paul Allen in 1968 at Seattle's Lakeside School. Gates was 13; Allen was 15. Students had gathered around the computer terminal the school had just acquired, and Allen watched the 13-year-old Gates push his way into the crowd. Allen later described the moment in his autobiography.
A freckle-faced eighth-grader was edging his way into the group. All gangly limbs— and you could feel the nervous energy. - Paul Allen, Idea Man (2011)
The friendship that began that way led the two to program together on the school's computer, and in 1972 they tried their first business together. The company was called Traf-O-Data—a system that automatically analyzed traffic flow data. They earned about $20,000, but in the end the business model was flawed. Allen's own assessment is honest.
Traf-O-Data was a good idea with a flawed business model. We hadn't done market research. We didn't anticipate that local governments wouldn't want to buy machines from students. - Paul Allen, Idea Man (2011)
It wasn't a big success, but the two had spent eight years programming together and trying a business together. All of that was preparation for one day in January 1975.
In January 1975, Allen found a magazine at a newsstand in Harvard Square. The January issue of Popular Electronics. On the cover was a computer he had never seen before. Altair 8800—the first personal computer ordinary people could actually buy. The moment Allen saw that magazine, he knew something was beginning.
He bought the magazine and ran to Gates's dorm. "This is happening without us!" he shouted. The starting point of the PC era had just arrived, and they were not at it.
What Allen saw was not just a computer. It was the starting point of the PC era. And the two decided they would be at that starting point.
The Other Person Turned That Starting Point Into a Company
If Allen found the starting point, Gates turned it into a company. Neither of them had ever seen an Altair. But Gates immediately called MITS, Altair's manufacturer, and proposed that they could write a BASIC interpreter. He promised they could demo it within six weeks. MITS scheduled the demo, and the two got to work.
Their method was clever. Since they didn't have an Altair, they first built an emulator on Harvard's PDP-10 to simulate Altair's 8080 processor. They wrote the BASIC interpreter inside that virtual environment. Six weeks later at MITS, on the first demo, the code worked on the first try. The contract was signed on the spot.
On April 4, 1975, the two founded their company. Allen named it: Micro-Soft, a portmanteau of Microprocessor and Software. Allen's identity was stamped into the company name.
But the decision that made Microsoft a giant of the PC era came in 1980. When IBM was looking for an operating system for its PC, it turned to Microsoft. Gates licensed MS-DOS to IBM without transferring ownership. Every time IBM sold a PC, Microsoft received a royalty.
That single decision made Microsoft the dominant force in the PC OS market. In a 2025 NPR interview, Gates looked back on that time.
I was lucky that Paul Allen and I saw personal computing and the role of software, and almost nobody else did. Even the big companies, particularly IBM, didn't see what we saw. - Bill Gates, NPR interview (2025)
Gates's vision can be compressed into a single line: "A computer on every desk." In 1980, almost no one took that vision seriously. Only Gates and Allen saw that future, and they built the road to it themselves.
How Did the Two Build the PC Era
Paul Allen — Creator (C)
One-line definition The one who finds connections others overlook and opens up new possibilities.
Keywords Creativity · Originality · Reframing · Dimensional thinking · Insight
Strengths
Brings new possibilities so the team doesn't stay on the same path
Offers original perspectives and fresh solutions
Expands the range of what can be imagined
Cautions
Can linger in the ideation stage, making execution harder
Long thinking time may slow the pace when quick decisions are needed
Bill Gates — Strategist (S)
One-line definition The one who anticipates future risks and designs a safer path forward.
Keywords Insight · Scenario thinking · Risk management · Structuring · Long-term vision
Strengths
Long-range scenarios prevent the team from getting stuck in short-term thinking
Identifies risks early to keep the team from repeating the same mistakes
Organizes priorities so the team stays aimed at the larger goal
Cautions
Extended thinking time can delay immediate action
Focus on the big picture can push aside on-the-ground response
The person who discovers and the person who builds are usually different people. But when two people stack eight years of time together, those two roles fit together naturally.
Through the Work DNA lens, the two roles become clear. Allen is a Creator (C) type—someone who puts work and craft first, takes time to think, and sees new possibilities every time. The essence is the architect who finds connections others overlook and opens up new possibilities. The moment he recognized the starting point of the PC era from the Altair cover, his constant attempts at new ideas like Traf-O-Data, even the title of his autobiography Idea Man—all of it is Allen's essence.
Gates is a Strategist (S) type—someone who puts work and craft first, takes time to deliberate, and designs long-term scenarios within established systems. The essence is the strategist who anticipates future risks and designs a safer path forward. Licensing the OS to IBM rather than selling it, seeing the ten-year picture of "a computer on every desk" in 1980—all of it is Gates's essence.
The two share the same center of gravity (both prioritize work and craft). Their stance toward thinking is the same too (both take time to deliberate). Only one thing differs: new attempts (Allen) vs. established systems (Gates)—on this one axis, they faced each other like mirrors.
When Allen asked, "Could this be possible?" looking for new possibilities, Gates asked, "How do we realize this?" designing the structure. When one found the starting point, the other turned it into a company. When one saw the landscape of the computer industry, the other designed the structure of the IBM contract.
On the rhythm built over eight years at school, the two together made the starting point of the PC era.
What They Made Together Endures
C-S Strengths
• New possibility + long-range scenario, working together: When C surfaces a new starting point, S situates that possibility within a long-range scenario
• Aligned tempo of careful deliberation: Both prefer thorough review over immediate decisions, so the depth of decisions is deep
• Shared collaboration language on common ground: Because both put work and craft first, even different stances toward new attempts can be negotiated by the same standard (near combination signature: T · R aligned)
• Natural division between discovery and design: C takes responsibility for new possibilities and ideas; S takes responsibility for structure and execution scenarios
C-S Cautions
• New attempts vs. established systems clash (C pursues newness vs. S prefers stable systems) → Divide roles by stage (idea generation stage: C; execution scenario stage: S)
• Risk of both thinking timelines stretching long (C lingering in ideation + S's careful deliberation) → Agree on deadlines in advance to ensure decision pace (set deadlines for each stage)
• Both fall short on immediate on-the-ground response (C focuses on ideation + S focuses on the big picture) → Assign on-the-ground variable response separately, or prepare scenarios in advance
Had there been only Allen, Microsoft would not have existed. Allen discovered new possibilities, but he was not the one who turned them into the IBM contract structure. Had there been only Gates, Microsoft would not have started in the spring of 1975. Gates could write code, but the one who saw the Altair cover at the newsstand and shouted "this is happening without us" was Allen. Without someone who sees the starting point, there is no starting point to turn into a company.
What the two built changed the landscape of the computer industry. In 1975, computers were enormous machines belonging to a few corporations and universities. Fifty years later, almost every person has a computer on their desk and in the palm of their hand. The two friends were at the starting point of that change.
But the collaboration of the two did not last forever. In 1982, Allen was diagnosed with Hodgkin's lymphoma, and in 1983 he left Microsoft. The relationship between the two went through a difficult time then. Allen passed away in 2018.
The fact that the collaboration ended does not erase the value of what they made together. Not every collaboration can last forever. But what the two of them made during the time they were together remains on our desks fifty years later.
There is a line Allen wrote at the end of his autobiography.
I know I had a role in Microsoft taking its place. That is enough. - Paul Allen, Idea Man (2011)
Good collaboration is judged by what was built when two people were together. Not by how long that time lasted, or how it ended.