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Microsoft, founded by Bill Gates and Paul Allen, rose to dominate the personal
            computer operating system market in the mid-1980s, followed by Windows. As of
            2015, Microsoft is market-dominant in the IBM PC compatible operating system

            market and the office software suite market. Satya Nadella took over as CEO in
            2014, and the company has scaled back on hardware and instead focused on cloud
            computing. Earlier dethroned by Apple in 2010, in 2018 Microsoft reclaimed its
            position as the most valuable publicly traded company in the world.


            Apple

            Apple Inc. is the largest technology company by revenue and, as
            of June 2022, is the fourth-largest personal computer vendor by

            unit sales and the second-largest mobile phone manufacturer.
            Apple  was founded  as Apple  Computer  Company on  April  1,
            1976, by Steve Jobs, Steve Wozniak, and Ronald Wayne. Apple
            lost considerable market share to the lower-priced duopoly of

            the  Microsoft  Windows  operating  system  and  Intel  computer
            chips during the early 1990s. Over the next decade, Jobs guided Apple back to
            profitability through several tactics, including introducing the iMac, iPod, iPhone,
            and iPad, opening the Apple Store retail chain, and acquiring numerous companies

            to broaden the company’s product portfolio.

            Jobs was succeeded as CEO by Tim Cook in 2011. Apple is ranked as one of the
            world’s most valuable brands.


            Gmail

            Gmail is a free email service provided by Google. As of 2019, it
            had 1.5 billion active users worldwide. A user typically accesses
            Gmail in a web browser or the official mobile app. The idea for
            Gmail was developed by Paul Buchheit several years before it

            was announced to the public.

            Google’s  mail  servers  automatically  scan  emails  for  multiple
            purposes,  including  to  filter  spam  and  malware,  and  to  add  context-sensitive
            advertisements next to emails. Gmail was ranked second in PC World’s ‘100 Best
            Products of 2005’, behind Firefox. Gmail also won ‘Honorable Mention’ in the

            Bottom Line Design Awards 2005. In September 2006, Forbes declared Gmail to
            be the best webmail application for small businesses.






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