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

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.

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

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.

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.

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.

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.

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.

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.

Explore demonstrations of hundreds of viruses and other malware in action

On their YouTube channel, Malware historian Daniel White has documented what happens when various types of malware—mostly from the 1980s and 90s—run on a computer or Nokia cell phone. The demonstrations were safely conducted within virtual machines—older operating systems run within contained windows of modern software, resembling a picture-in-picture setup.

The Chernobyl virus earned its name for activating on the meltdown's anniversary

Affecting Windows 95 and 98 computers, it filled gaps in the code of any program opened after infecting a computer, earning it the nickname "Spacefiller." On April 26, 1999, the virus overwrote part of the software responsible for booting up a computer, rendering it unusable.

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.

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.

Listen to the iconic Windows 95 startup sound

The jingle was added to the Library of Congress's National Recording Registry in 2025, and was commissioned by Brian Eno, the ambient musician, producer and visual artist.

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

Eighty-four different pieces were composed for the Windows 95 startup sound

Brian Eno, the ambient music artist, was tasked with creating a 3.25-second jingle that was inspiring, universal, optimistic, and futuristic in tone. As with all of his compositions, Eno created the sound, which was double the requested length, on a Mac.

The dot-com boom sent tech stocks soaring before a historic collapse

A look at the dot-com bubble, when investors poured money into unproven internet startups, driving the Nasdaq to dizzying heights before it crashed by more than 80% after 2000, showing how new technologies can detach markets from reality.

Watch a tech demo of the world's first consumer graphics processing unit, the Nvidia GeForce 256, released Oct. 11, 1999.

In 2019, a laptop loaded with six of the worst malware in history and described as 'an exhibit of historical weaponry' sold for $1.3M.

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's Flight Simulator is one of history's longest-running software products

The program originated from a master’s thesis project on generating three-dimensional graphics, which was later combined with flight equations. The first version ran on the Apple II in early 1980, but its creator licensed the program to Microsoft two years later,

In 1984, Apple ran an award-winning Super Bowl commercial

Directed by Ridley Scott and a winner at the Cannes Lions International Advertising Festival, the clip features a heroine flinging a sledgehammer at a Big Brother-style figure delivering a speech. As the screen shatters, a voiceover proclaims that Apple's release of the Macintosh will ensure, "1984 won't be like '1984.'"

'In my experience, each failure contains the seeds of your next success—if you are willing to learn from it.'

- Microsoft cofounder Paul Allen (1953–2018)

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.

Elk Cloner, the first computer virus to spread in public, was written as a practical joke by Richard Skrenta, a Pittsburgh high school student.

Apple’s '1984' ad aired once during the game and permanently shaped their advertising

During Super Bowl XVIII, Apple aired its dystopian “1984” commercial once to a mass audience, introducing the Macintosh and positioning Apple as a challenger to IBM’s dominance in personal computing.

In 1999, Microsoft and Intel’s addition signaled the information tech era for the Dow

Microsoft and Intel became the first information technology firms added to the DJIA. Their inclusion marked a turning point—the digital revolution and tech began to drive the American economy.

Where did artful screen savers go? A history

Early on in the personal computer days, users and engineers realized screens could be damaged if the same image—of a button, a logo, or a navigation bar—stays static for too long. To preserve the screen, developers deployed screen savers—automatic reductions in the light intensity, or regularly changing patterns on the screen. These artful screen savers had a heyday in the 1990s, but have since lost popularity to the simple black screen. Read the history here.

Steve Jobs saved a nearly bankrupt Apple

Apple nearly went bankrupt in 1997, when the tech company had only three months of operational cash left. Apple's board ousted cofounder Steve Jobs in 1985, but he was brought back as interim CEO to revive the company when Apple purchased Jobs' company, NeXT.

Read an oral history of the Y2K panic

This oral history brings together programmers, engineers, and officials who first identified the date flaw and then spent years alerting the public to the danger and racing to repair millions of lines of code.

Warren Buffett has been criticized for avoiding investing in tech stocks during the 1990s dot-com boom, as he wasn't confident in the future growth of the tech industry.

The world spent up to $600B to avert the Y2K computer glitch

Early computer programmers used a two-digit code to record years rather than four. With the switch in the year 2000 from '99 to '00, analysts feared databases might fail and prompt outages and financial catastrophe. To prepare, governments and businesses spent an estimated $300B to $600B to mitigate the glitch.

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.

Watch a cybersecurity expert answers questions about hacking

From firewalls and VPNs to ransomware and viruses, IBM Distinguished Engineer Jeff Crume has seen many changes in cybersecurity during his 40 years of IT experience. In this video, he explores some of the most significant hacking events in history and provides advice on protecting yourself online.

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.

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.

The Year 2038 problem is the next potential computer time rollover bug

Many older systems store time as a signed 32-bit integer counting seconds since Jan. 1, 1970. That counter maxes out on Jan. 19, 2038—overflowing into negative time and sending clocks back to 1901, potentially crashing any older software that depends on accurate dates.

The dot-com bubble burst in 2000 when the Nasdaq dropped more than 76% in roughly 2 years

Between 1995 and 2000, the Nasdaq Composite index jumped from roughly 1,000 to 5,000 amid excitement over new internet companies. As venture capitalists dumped money into startups, those same companies struggled to turn a profit, leading to a bubble. The Nasdaq wouldn't reach its former high until 2015.

A Y2K glitch billed one VHS renter $91,000 for a movie

At a video store in upstate New York, a date rollover error marked a customer’s 1999 rental as 100 years overdue, resulting in a $91,250 bill. The store quickly fixed the bug and gave him a free rental as consolation.

The dot-com bubble burst in the early 2000s

If you’ve heard of companies like Google and Yahoo, you’re already partially familiar with the dot-com bubble: a period from roughly 1995 to 2001, when internet companies were the hottest thing in venture capital. The “bubble” part of the term refers to the industry’s eventual implosion.

The Rolling Stones were paid $3M to have 'Start Me Up' in the Windows 95 promo

The fee was part of Microsoft's $300M advertising and promotional campaign for the operating system, which featured the Start button for the first time. The company also filmed sitcom-style infomercials featuring "Friends" TV stars Jennifer Aniston and Matthew Perry.

IBM's supercomputer Deep Blue beat chess superstar Garry Kasparov in 1997, marking a pivotal moment in the development of artificial intelligence.

Steve Wozniak invented the personal computer

Steve Wozniak's Apple I and Apple II computers launched the personal computer industry, influencing the future of consumer electronics. He was also awarded the National Medal of Technology and the Heinz Award in Technology, the Economy, and Employment because of his invention.

The first smartwatch was made by Microsoft in 1994

Coproduced by Timex, the Timex DataLink 150 featured a small LCD screen and could transfer data to and from a Windows PC. Like the Windows XP Tablet that launched in 2002, the smartwatch did not sell well, and both products are considered to have been released before their time.

Steve Jobs in his final public talk

The last major event outside of Apple that Steve Jobs spoke at, prior to his death in 2011, was the 2010 All Things Digital conference. In spite of his declining health, he is voluble and combative throughout.

The foundation for computer viruses was published after its creator's death

In the late 1940s, Hungarian American mathematician, scientist, and engineer John von Neumann gave a series of lectures where he explained the theoretical framework for a computer program that could replicate itself—the von Neumann Universal Constructor. His lectures were later compiled and published in 1966, nine years after his death from cancer.

Explore an online gallery highlighting the importance of graphical user interfaces

Before the Macintosh, computers were primarily used in offices and required users to type complex commands to perform tasks. Apple followed the device with the LaserWriter printer, bringing graphic production to at-home artists and designers.

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

Many early computer viruses were not created for malicious purposes

Besides those authored in research labs as proofs of concept for self-replicating software, hobbyists would create malware that played music or displayed text and animations that intentionally revealed the infection as a means of showing off, rather than hiding their spread.

Watch Steve Jobs unveil the first iPhone in 2007

During his Macworld San Francisco 2007 keynote address, Jobs claimed Apple had reinvented the phone by integrating phone capabilities with internet access and music playback from its iPod product line. The multitouch display eliminated the need for a stylus or keyboard hardware typically found on other smartphones.

The default wallpaper for Windows XP, 'Bliss,' was taken in Sonoma, California

Captured by National Geographic photographer Charles O'Rear in 1996, the photograph was uploaded to the stock image site Westlight in 1998, before being purchased by Microsoft. As of 2023, the hillside in the image is now home to rows of grapevines.