Who is Bill Gates?
Bill Gates cofounded Microsoft and chairs the Gates Foundation, guiding and approving its strategy. The foundation works with partner organizations in health, development and equity. Gates Ventures supports energy, education and health initiatives.[1]
Education and early programming
He grew up in Seattle, and his friendship with Paul Allen dated to Lakeside School. At Harvard he worked with Allen and Monte Davidoff on the language software for programming the Altair. This period combined university learning, access to computers and collaboration among young programmers. [8]
He left Harvard in 1975 to cofound Microsoft. In 2007 the university awarded him an honorary law doctorate. His 2018 return included visits to microrobotics and biodesign laboratories and a discussion with students about research and problem-solving. [3]
Microsoft: BASIC, IBM, Windows and applications
Gates and Allen began developing software for the Altair 8800. In 1980 they agreed to supply the operating system for IBM’s first personal computer, and Microsoft launched Windows in 1985. The company grew around personal-computer software before broadening its business lines. [2]
The Altair BASIC interpreter was written without physical access to the machine, according to Computer History Museum documentation. This adapted an existing language to a new microcomputer; it did not invent the BASIC language. [9]
Microsoft introduced Office for Macintosh in 1989. In May 1995 Gates’ Internet Tidal Wave memorandum identified the Internet as a decisive transformation for the company, guiding the integration of network services into its products. [31]
Windows 95, released on 24 August 1995, introduced features such as the Start menu and taskbar. The continuity of these conventions illustrates the influence of interface decisions made by Microsoft teams during Gates’ leadership. [10]
Changing responsibilities and antitrust litigation
In January 2000 Steve Ballmer became CEO while Gates focused on software architecture. In 2006 Gates announced a two-year plan to leave day-to-day work and increase his philanthropic involvement, with Ray Ozzie and Craig Mundie taking greater technical responsibilities. [11]
Microsoft’s expansion was accompanied by a US government civil antitrust case initiated in 1998. In November 2001 the Justice Department and Microsoft agreed on a revised proposed settlement. The proceedings concerned Microsoft’s business practices and shaped its relationship with the market. [13]
Gates resigned from Microsoft’s board effective 13 March 2020. His record as founder and former executive should be distinguished from the company’s current executive management. [12]
Foundation, global health and philanthropy
The Bill & Melinda Gates Foundation was established in 2000 from earlier philanthropic initiatives. Its institutional history encompasses global health, education and development programmes. Melinda French Gates left the cochair role in June 2024, and the organisation adopted the Gates Foundation name. [14]
Gavi identifies the initial $750 million commitment as helping establish the alliance and mobilise other donors. Vaccination work involves governments, international organisations and health teams, with the foundation acting as funder and partner. [15]
In 2011 the foundation launched the Reinvent the Toilet Challenge to develop sanitation that treated human waste, removed pathogens and reduced reliance on water and sewer networks. The programme funded research and prototypes, followed by trials and commercialisation by specialist organisations. [16]
In 2010 Gates, Melinda French Gates and Warren Buffett created the Giving Pledge. It encourages wealthy individuals to publicly commit most of their wealth to philanthropy. A pledge and donations actually completed are different measures. [19]
In May 2025 the foundation announced plans to spend $200 billion over twenty years and conclude operations in 2045. Gates connected the plan to donating virtually all his remaining wealth. This describes future disbursements, rather than money already distributed. [17]
In January 2026 the board endorsed a planned $9 billion annual payout. This culminated a multiyear programme of budget increases and allocated resources towards the foundation’s mission, without yet representing full execution. [18]
Energy, climate and technology investment
In December 2016 he introduced Breakthrough Energy Ventures, a fund exceeding $1 billion intended to move energy innovations from laboratory to market. It built on the investor coalition formed the previous year, using an investment horizon suited to technologies with long development cycles. [20]
He is founder and chairman of nuclear-innovation company TerraPower. His role combines financing, governance and advocacy, while specialist teams undertake engineering and development. [21]
TerraPower dates the start of non-nuclear construction for its Wyoming Natrium project to June 2024. That phase included testing and training facilities; it did not mean the reactor was already generating electricity. [22]
In Three tough truths about climate, published in October 2025, he argued for putting human welfare at the centre of climate strategy. He maintained support for emissions reduction while opposing cuts to health and development funding to achieve it. This is Gates’ stated proposal for priorities. [24]
Artificial intelligence and equitable access
In The Age of AI has begun, published in March 2023, he compared AI with earlier major computing transitions. He explored potential applications in productivity, health and education alongside error and inequality risks. The essay presents expectations and guiding principles, rather than evidence of universal benefit. [4]
In September 2026 the foundation announced at least $1 billion over two years to broaden AI access. The programme emphasised underrepresented languages, data suited to local settings and participation by professionals and communities in evaluating tools. [29]
Books and public communication
The Road Ahead appeared in 1995, forming part of his early writing on the future of computing. [27]
Business @ the Speed of Thought, published in 1999, addressed strategic technology use in business. It presented digital information as a management resource and examined organisational examples, extending his discussion from software to how companies operate. [30]
How to Avoid a Climate Disaster, published in 2021, organises his emissions-reduction proposals around existing technologies and innovations still needed. It connects innovation, investment and public decisions within his view of the energy transition. [23]
How to Prevent the Next Pandemic examines COVID-19 lessons and proposes preparation and investment to respond to future outbreaks. Its public-communication and health-policy approach differs from original clinical research. [25]
Source Code, published in 2025, is a memoir focused on childhood and early years preceding his established business career. It adds an autobiographical account to his books on technological prospects and global problems. [26]
Public recognition
Bill and Melinda Gates jointly received the 2013 Lasker–Bloomberg Public Service Award for their philanthropic contribution to global health. It recognises support for health programmes, without attributing to them the authorship of vaccines or discoveries made by researchers. [28]
Sanitation and the safety of the people providing it
In his prepared remarks for the 2018 Reinvented Toilet Expo, Gates described visiting communities where latrines were emptied by hand and explained his involvement in developing new sanitation solutions. [5]
In 2022, UN-Water documented support from the Bill and Melinda Gates Foundation for an initiative involving WHO, WaterAid, ILO, SNV and the World Bank which, with SuSanA, created a knowledge hub for sanitation workers. [6]
WHO identifies risks in tasks such as emptying pits, working in sewers and treating faecal waste: infections, injuries, toxic gases and collapses. [7]
Innovation that includes maintenance workers
This connection extends the assessment of a sanitation solution to the people who empty, clean and maintain it. A useful comparison between technologies should ask which operations involve contact with waste, which require access to a dangerous space and what resources the person doing the work will have. Benefits for the end user and maintenance conditions are two outcomes that should be examined together.
Gates’s documented contribution lies in advocating sanitation and in his foundation’s support. Specialist preventive work belongs to the organisations and professionals developing these initiatives.
