Microsoft Corporation is a U.S.-based multinational technology company headquartered in Redmond, Washington. Established in 1975 by Bill Gates and Paul Allen, the company was instrumental in the personal computer revolution, primarily through its software products like Windows. Over the decades, Microsoft expanded into areas such as cloud computing, internet services, video gaming, and hardware, eventually becoming the largest software producer globally and one of the most valuable public companies.Initially, Microsoft focused on developing and selling BASIC interpreters for the Altair 8800. The company soon dominated the personal computer operating system market with MS-DOS in the mid-1980s, later introducing Windows.
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| Industry | Information technology |
| Founded | April 4, 1975 in Albuquerque, New Mexico, U.S. |
| Headquarters | One Microsoft Way, Redmond, Washington , U.S. |
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| Area served | Worldwide |
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| Revenue |  US$245.1 billion (2024) |
| Number of employees | 228,000 (2024) |
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Its 1986 initial public offering (IPO) and subsequent rise in stock value created three billionaires and approximately 12,000 millionaires among its employees. From the 1990s onwards, Microsoft diversified beyond operating systems into various technology sectors. Steve Ballmer succeeded Gates as CEO in 2000, overseeing major acquisitions like Skype in 2011 and strengthening the company’s hardware portfolio. This included launching Microsoft’s first in-house PCs, the Surface line, in 2012 and acquiring Nokia’s mobile division. Under Satya Nadella’s leadership beginning in 2014, Microsoft pivoted to cloud computing through Azure and acquired LinkedIn for $26.2 billion in 2016. Nadella also oversaw the expansion of Microsoft Gaming, culminating in the $68.7 billion acquisition of Activision Blizzard in 2023.
Microsoft has maintained a leading position in operating systems for IBM-compatible PCs and office software since the 1990s. Its flagship software offerings include Windows, Microsoft 365, Azure, and the Edge browser. Hardware products feature the Xbox gaming consoles and the Surface touchscreen PC series. Other notable services include Bing, MSN, HoloLens mixed reality, cloud solutions via Azure, and developer tools such as Visual Studio.
As one of the Big Five U.S. tech firms, alongside Alphabet, Amazon, Apple, and Meta, Microsoft reached a market capitalization of $1 trillion in April 2019, becoming the third American public company to achieve this milestone. Despite its achievements, the company has faced criticism for monopolistic behavior, and its software has occasionally been questioned for security, usability, and reliability issues.
History of Microsoft
1972–1985: Founding
Microsoft’s roots trace back to childhood friends Bill Gates and Paul Allen, who shared a passion for computer programming. In 1972, they co-founded Traf-O-Data, a venture providing early computing solutions to track automobile traffic. Gates enrolled at Harvard University, while Allen attended Washington State University before leaving to work at Honeywell.
In January 1975, an article in Popular Electronics featured the MITS Altair 8800 microcomputer, inspiring Allen to develop a BASIC interpreter for the system. Gates reached out to MITS, claiming a functional interpreter was ready, which led to a successful demo in Albuquerque, New Mexico. MITS agreed to distribute the product as Altair BASIC.
On April 4, 1975, Gates and Allen founded Microsoft, with Gates as CEO. The name “Micro-Soft” combined “microcomputer” and “software.” By 1977, Microsoft had opened its first international office in Japan through a partnership with ASCII Magazine and relocated its headquarters to Bellevue, Washington, in January 1979.
In 1980, Microsoft entered the operating system market with Xenix, a Unix variant. Its true breakthrough came with MS-DOS. IBM contracted Microsoft in November 1980 to supply an OS for its new personal computer. Microsoft purchased 86-DOS from Seattle Computer Products, rebranding it as MS-DOS. While IBM marketed it as IBM PC DOS, Microsoft retained ownership, setting the stage for its OS dominance.
With MS-DOS gaining traction, Microsoft became the leading OS vendor for IBM-compatible PCs. The company expanded into peripherals with the Microsoft Mouse in 1983 and launched a publishing division, Microsoft Press.
In 1983, Paul Allen resigned after a Hodgkin's lymphoma diagnosis, later claiming Gates tried to reduce his stake during his illness. After leaving, Allen invested in sports teams, real estate, neuroscience, private space initiatives, and other ventures.
1985–1994: Windows and Office
Microsoft released Windows 1.0 on November 20, 1985, a graphical layer for MS-DOS, signaling its entry into GUI-based systems. Concurrently, Microsoft worked with IBM on OS/2. The company relocated to Redmond, Washington, on February 26, 1986, and went public on March 13, 1986, creating several billionaires and thousands of millionaires among employees.
In 1987, Microsoft released its OS/2 version for OEMs, but MS-DOS remained dominant. Work on Windows NT, a modular 32-bit OS, culminated in its July 1993 release, marking a shift to more stable, advanced systems.
Microsoft Office debuted in 1990, bundling Word, Excel, and other productivity apps, becoming essential for businesses and cementing Microsoft’s leadership in office software. Windows 3.0 also launched that year, offering a refined GUI and better 386 processor support, further consolidating Microsoft’s OS and software dominance.
By 1994, the U.S. Department of Justice began investigating Microsoft for anti-competitive practices related to OEM deals and MS-DOS licensing, which many considered monopolistic.
1995–2007: Foray into the Web, Windows 95, Windows XP, and Xbox
Windows 95 launched in 1995, introducing the Start button, 32-bit compatibility, and a revamped UI, achieving massive commercial success. Internet Explorer debuted as the default browser, though Microsoft faced legal scrutiny for bundling it with the OS.
Microsoft expanded into web services with MSN and into hardware with Windows CE for PDAs. A partnership with NBC led to the launch of MSNBC in 1996. Legal challenges continued, including a 1997 DOJ case alleging violations in bundling IE with Windows.
In 2000, Steve Ballmer became CEO, Gates assumed Chief Software Architect, and Microsoft emphasized digital rights management and security through initiatives like the Trusted Computing Platform Alliance, despite some criticism.
Microsoft entered gaming in 2001 with the Xbox, followed by Xbox 360 in 2005. Hardware expansion continued with the Zune in 2006 and the Surface tablet in 2007.
Key developments between 2007–2011 included:
- Windows Vista and Office 2007: Vista introduced the Aero interface and enhanced security. Office 2007 introduced the Ribbon UI.
- Legal and Financial Challenges: EU fined Microsoft €899 million in 2008 for antitrust violations.
- Azure and Retail Expansion: Azure launched in 2008; first retail store opened in 2009 alongside Windows 7.
- Mobile OS Struggles: Windows Phone launched in 2010 but failed to compete with iOS and Android.
2011–2014: Windows 8, Xbox One, and Surface Devices
Windows 8 debuted in 2012 with a touch-focused interface. Microsoft released the first in-house Surface tablet. The Xbox One launched in 2013 with upgraded Kinect technology. In 2014, Microsoft acquired Nokia’s mobile division for $7 billion, aiming to strengthen mobile hardware.
2014–2020: Windows 10, Edge, and HoloLens
Satya Nadella became CEO in 2014, pivoting Microsoft toward cloud computing and subscription services. Windows 10 (2015) unified devices under a single platform, and Edge replaced Internet Explorer. HoloLens, a mixed-reality headset, launched in 2016 for gaming, education, and business. Strategic acquisitions included GitHub ($7.5 billion, 2018), while Linux support expanded through Azure.
Acquisitions
- Affirmed Networks – $1.35 billion (2020)
- ZeniMax Media (Bethesda) – $8.1 billion (2021)
- Nuance Communications – $16 billion (2022)
- Activision Blizzard – $68.7 billion (2022)
- Clipchamp & Takelessons – Video editing and online education expansions
- OpenAI Partnership – Multi-billion investment in AI integration (2023)
Product and Services Launches
- Xbox Series X and S – 2020
- Windows 11 – 2021
- Azure Quantum – 2021 (public preview)
Investments and Partnerships
- Azure Quantum Elements – 2023
- Global AI Infrastructure Investment – $100 billion partnership with BlackRock (2024)
- G42 & Southeast Wisconsin AI Hub – $1.5B (G42) and $3.3B (Wisconsin, 2024)
Employee Layoffs
- 10,000 layoffs in 2023 amid restructuring
- Mixed Reality and Azure layoffs in 2024
Security and Outages
July 2024 global IT outage due to cybersecurity software flaw
Corporate Affairs
- Company Ranking and Market Position
- No. 14 on Fortune 500 (2022)
- Largest software maker globally (2022)
- Trillion-dollar market cap in 2019
- Third-highest brand valuation (2024)
- AAA credit rating
Board of Directors
- Includes Satya Nadella, Reid Hoffman, Penny Pritzker, and others
- Oversees operations via committees for audit, compensation, governance, and regulatory/public policy
Key Board Events
- Bill Gates left the board in 2020
- 2022 review of sexual harassment and gender policies
Chief Executives
- Bill Gates (1975–2000)
- Steve Ballmer (2000–2014)
- Satya Nadella (2014–present)
Financial Overview
- IPO: $21 per share (1986), closed $27.75
- Nine stock splits → effective IPO price ≈ $0.09 per share today
- Dividends started 2003, quarterly from 2005, increasing over time
- AAA bond rating; $2.25B bond issuance (2011)
Challenges and Competition
- Apple overtook Microsoft in 2011 quarterly revenue and profits
- Microsoft’s Online Services Division reported ongoing losses
Microsoft and the U.S. Government
- Shared software bug data with U.S. agencies; denied voluntary PRISM participation
- Lawsuit vs. U.S. government over secrecy orders (2016–2017)
- $9B Department of Defense cloud computing contract (2022)
Corporate Identity and Culture
- Developer engagement via MSDN, Channel 9, On10.net
- "Eating your own dog food" refers to internal beta testing
- FYIFV – financial independence culture
H-1B and Employment Practices
- Advocates for H-1B expansion
- Criticism over potential displacement of U.S. workers
LGBT Rights and Parental Leave
- High ratings on Corporate Equality Index
- Paid parental leave: 12–20 weeks depending on birth parent status
Headquarters
- Redmond campus: One Microsoft Way, 8M sq ft, 30,000–40,000 employees
- East Coast HQ: Charlotte, North Carolina
- AI hub in London (2024)
Flagship Stores
- Fifth Avenue, NYC (2015)
- Pitt Street Mall, Sydney (2015)
Philanthropy
Microsoft Philanthropies: cloud resources, broadband, YouthSpark, tech education, child welfare
COVID-19 Response
Donated goggles, thermometers, caps, suits to Seattle (2020)
Response to Russian Invasion of Ukraine
Monitored Russian cyberattacks; report on strategic espionage (2022)
Logo Evolution
- 1975–1980: First logo
- 1980–1982: Second logo
- 1982–1987: Third logo
- 1987–2012: Pac-Man logo
- 2012–present: Tile-style logo representing Windows, Office, Xbox, Bing
Controversies
Product Quality and Employment
- Criticized for software usability and security
- “Velvet Sweatshop” allegations for overwork
Tax Avoidance
- Irish subsidiary profits in Bermuda; $39B shifted to Puerto Rico
- 2023 IRS claimed $28.9B owed
Antitrust Behavior
- “Embrace, Extend, and Extinguish” strategy criticized
- Recent EU complaints over Teams bundling
Privacy and Surveillance
Participated in PRISM leaks; emphasized customer data protection
Diversity and Workplace Activism
- Appointments of women to board praised (2015)
- 2024 firings for Gaza vigil at HQ
FTC Investigations
2024: Antitrust probe on cloud, AI, cybersecurity, and OpenAI investments
References
- Altair 8800 microcomputer (no date) National Museum of American History. Available at: https://americanhistory.si.edu/collections/object/nmah_334396 (Accessed: 10 January 2025).
- Carton, A. et al. (2024) The Microsoft Logo History & Evolution: From 1975 to 2025, Designhill. Available at: https://www.designhill.com/design-blog/the-microsoft-logo-history-evolution/ (Accessed: 10 January 2025).
- Microsoft Redmond campus - wikimapia (no date) Microsoft Redmond Campus - Redmond, Washington. Available at: https://wikimapia.org/12150/Microsoft-Redmond-Campus (Accessed: 10 January 2025).
- MITS ALTAIR8800 (no date) User documentation for emuStudio. Available at: https://www.emustudio.net/documentation/user/altair8800/ (Accessed: 10 January 2025).
- Steve Jobs once called Microsoft Products ‘third-rate’: Apple co-founder’s Old Video Goes Viral (no date) The Economic Times. Available at: https://economictimes.indiatimes.com/magazines/panache/steve-jobs-once-called-microsoft-products-third-rate-apple-co-founders-old-video-goes-viral/articleshow/111887876.cms?from=mdr (Accessed: 10 January 2025).
- TOI Tech Desk / TIMESOFINDIA.COM / Updated: Apr 1, 2024 (no date) Microsoft is removing this 30-year-old software from windows: How you’ll be affected, alternatives and more - times of India, The Times of India. Available at: https://timesofindia.indiatimes.com/technology/tech-news/microsoft-is-removing-this-30-year-old-software-from-windows-operating-system-how-youll-be-affected-alternatives-and-more/articleshow/108855365.cms (Accessed: 10 January 2025).
