Microsoft's initial successes came from promising products that did not yet exist

In discussions with teams responsible for MITS's Altair 8800 and IBM's PC, Bill Gates and Paul Allen claimed to have created ready-to-use software. Code for the former was not completed until Paul Allen's flight to MITS' headquarters, where the software was successfully tested for the first time.

Microsoft Excel is used by over a billion people worldwide

The upstart computer software company Microsoft launched its columns-and-rows spreadsheet program in 1985, enabling users to sort information, create charts, and perform calculations with minimal friction. It would be coupled with Microsoft Word and PowerPoint in 1990 as part of the Microsoft Office for Windows.

View an illustrated history of Microsoft Solitaire, first released as part of the Windows 3.0 operating system in 1990 to help users get familiar with using a mouse.

Microsoft Office debuted on the Macintosh in 1989

Over 15 months before its debut on Windows, the suite included Microsoft Word, Excel, PowerPoint and Mail—the precursor to Outlook. Bill Gates saw the Mac as a testing ground to work out bugs and gather feedback before the Windows release.

Microsoft paid $50k for the foundation of the OS they licensed to IBM

Rather than write MS-DOS from scratch, Bill Gates purchased the full rights to QDOS—Quick and Dirty Operating System—from Seattle Computer Products only weeks before IBM's PC hit the market. The IBM deal allowed Microsoft to license its OS to other manufacturers, ensuring it was not dependent on IBM's long-term success.

Explore an emulated demo of Windows 95 Microsoft Plus to try your hand at Solitaire, 3D Pinball Space Cadet, and other classic Windows applications.

Explore a visual history of the Windows operating system

Named after the windows that separate different applications, the operating system’s first version came preinstalled with Calculator, Paint, and Reversi. There was no Windows 9 to avoid compatibility issues with legacy code searching for Windows 95 and 98 files via a “windows9” query.

From 1986 to 2024, Microsoft has acquired at least 277 companies

Some of these acquisitions helped the company expand into enterprise software and services, including Visio, which integrated diagramming software into Microsoft Office, and Hotmail, which provided an email platform to customers. Recent acquisitions of Mojang and Activision Blizzard underscore an increasing emphasis on the video game industry.

Microsoft developed the Xbox to compete with Sony's all-in-one entertainment hardware

The video game console originated as a side project between four DirectX developers, from whom the console's original name, "DirectX Box," derives. These developers sought to counter Sony's PlayStation product line, which they saw as capable of capturing all entertainment markets by playing games, CDs, and DVDs.

Slick interfaces and bundling helped solidify Excel as the corporate planning tool

First initiated in the 1980s, the Excel spreadsheet built off predecessors like Lotus and VisiCalc, leveraging a novel graphic interface to entice new customers and packaging the program with other Microsoft Office products. Forty years later, the tool faces challenges from Google and AI, but retains devoted users.

Upgrade cost and compatibility issues have kept Microsoft's legacy systems alive

As of 2025, Windows XP and Windows NT continue to power ATMs and transit systems, while Deutsche Bahn's trains use Windows 3.11 for display systems. Microsoft's continued support for these operating systems helps it maintain its dominance in the business sector.

As of 2024, server products and cloud services make up 40% of Microsoft's revenue

These products generated $97.7B in the 2023-24 fiscal year, followed by office products and cloud services, which accounted for $54.9B during the same period. The fastest-growing revenue source was gaming at 39%, driven by sales of Xbox and first-party software.

VisiCalc was the first electronic spreadsheet, released with Apple II's personal computer in 1979

Before 1979, managers were essentially information processors working off paper ledgers. Scenario modeling was slow, manual, and expensive. Companies were understood as organizations that built things with financial analysis as secondary. VisiCalc made calculation so cheap that you could work iteratively, setting out forecasts and tweaking assumptions until you got the answer you wanted. Oks argues It created a new way of seeing the world.

Microsoft has integrated AI across its software products with Copilot

It utilizes an underlying model from OpenAI—makers of ChatGPT—to assist users in creating documents, writing code, locating files, and more across Windows, Microsoft 365, Bing search and WhatsApp on desktop and mobile devices. Copilot Voice and Vision offer accessibility features for users who prefer not to use mouse/keyboard navigation.

Bill Gates and Paul Allen were childhood friends before founding Microsoft

The two bonded over a teletype terminal at their school, which required a $40 hourly fee for computing time. They were banned from using the device after exploiting a bug that allowed them to bypass the fee, only to be later offered free computing time for finding more bugs.

A British Airways pilot mapped every flight of his career into a data art series

James Harding logged every flight he had flown in a software program and rendered the results into 3D globe animations, charts, graphs, and more. You can view the visualizations here, along with career stat breakdowns and a description of his project.

By 2005, Microsoft may have made as many as 12,000 millionaires

Stock options given to early employees also created four billionaires, including Bill Gates, who became the then-youngest self-made billionaire at the age of 31. As of 2025, Microsoft employs about 228,000 employees, including more than 50,000 at its headquarters in Redmond, Washington.

Microsoft’s 'Blue Screen of Death' was a symbol of computer crashes for over 30 years

In 2025, the symbol was replaced with a "Black Screen of Death" for improved readability and alignment with Windows 11's modern design. It became a pop culture symbol after appearing in Bill Gates' live tech demo of Windows 98.

Watch Bill Gates trigger the Blue Screen of Death during a Windows 98 demo

During a live Windows 98 demo at a computer trade show, Bill Gates watched as the system crashed with the infamous “Blue Screen of Death”—a critical Windows error screen signaling a system failure—midway through the presentation.

Nvidia pioneered the GPU industry via its origins as a video game company

From the mid-1990s to early 2000s, Nvidia carved out a niche as a maker of semiconductor chips specially designed for the video game industry. Nvidia broke through the competition to seal deals with TSMC and Microsoft, and popularized the term "graphics processing unit," aka GPU.

FLOW-MATIC was the first programming language resembling the English language

As part of the team working on UNIVAC—the first commercially produced electronic digital computer in the US—Grace Hopper helped develop the system that enabled nonprogrammers and businesspeople without a strong mathematics background to use the machine effectively, thereby enhancing the computer's commercial viability.

Explore a timeline of advancements in American aviation

From the Wright brothers' flight of the first powered plane in 1903 near Kitty Hawk, North Carolina, to SpaceX's debut of the Falcon 9 rocket in 2010 with reusable boosters, this interactive shows off the technological evolution of flight, from mechanical propulsion to ballistic spaceflight. (Some users may experience a paywall.)

The Macintosh popularized GUI and mouse navigation for personal computing

A graphical user interface that utilized windows, icons, and pull-down menus, rather than text-based commands, contributed to the device's success after its January 1984 launch. Its original sound system—capable of playing four voices—was developed after non-technical staff suggested the machine should play music.

A 1992 failed parachute test provided the hardware for the first mixed reality system

The Virtual Fixtures platform was developed to improve human dexterity by merging physical and virtual objects with haptic feedback from an upper-body exoskeleton. Tight budgeting and significant equipment needs nearly canceled the project, were it not for salvaging and repairing cameras and sensors from a smashed experimental parachute rig.

The history of graphics processing units began with hardware for displaying visuals in arcade machines, but the transition to 3D graphics led to the microchips and software that power today's AI data centers.

Unsatisfied with the designs provided by an Apple engineer, Steve Jobs designed the original Mac calculator in about 10 minutes.

The story of two female programmers running the simulations behind chaos theory's discovery

Margaret Hamilton and Ellen Fetter worked on MIT's 800-pound Royal McBee LGP-30 computer, which was fed binary code on paper tape to perform computations. Among the computations performed were those involving equations describing the motion of gas in a circulating fluid for Edward Lorenz, widely considered the father of chaos theory.

Microsoft was the most popular stock in hedge fund portfolios as of Q1 2024

874 hedge funds held Microsoft stock at the time. This infographic shows more of the most popular stocks in hedge fund portfolios.

'Super Mario Bros.' helped save the video game industry

A 1983 crash left the industry in tatters, desperate for a hit. Nintendo’s focus on a more immersive home experience was realized in “Super Mario Bros.,” bringing the industry from the arcade to the living room. The title eventually sold over 40 million units.

The first compiler to facilitate communication with computers was developed by Grace Hopper

The A-0 program linker automatically translated mathematical symbols into machine-readable binary code. Although it took two years for computer executives to get on board with the idea, the technology was foundational to future programming languages that allowed computers to understand commands written in word-based languages.

Safely explore historic viruses and other malicious software in the Malware Museum.

The first computer virus was created by a USC doctoral candidate in 1983

A year after creating malware in a controlled experiment that multiplied until it took over all of a computer's memory, Fred Cohen went public with his research and its risks. He called the self-replicating software a "computer virus," a term Cohen's advisor, Leonard Adleman, coined to describe its infectious behavior. (Some readers may experience a paywall.)

Hogwarts Legacy was 2023’s bestselling video game

Set a century before the books, Hogwarts Legacy lets players explore an open-world version of the wizarding world. Released in 2023, it sold more than 30 million copies worldwide, topping global sales charts.

Apple, the tech giant renowned for products like the iPhone, iPad, and Mac, started out in a garage in 1976.

Tetris was launched in the US at Summer CES 1988

Tetris first appeared in the US at the 1988 Summer CES, where Henk Rogers—who would later publish and market the game—first encountered it. This interview revisits that moment, with creator Alexey Pajitnov and Rogers reflecting on how the game gained global recognition.

The moment Bill Gates and the Rock announced the original Xbox at CES 2001

At CES 2001, Bill Gates and Dwayne “The Rock” Johnson took the stage to unveil the original Xbox. This memorable moment marked Microsoft’s entry into gaming and set the tone for its console brand.