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pohnpei397 eNotes educator| Certified Educator

This depends greatly upon what area of Microsoft’s business you are asking about.

In some areas of business, Microsoft is clearly not a monopoly.  For example, in the search engine business, Microsoft’s Bing is by no means the top competitor, let alone a monopolist.  The same goes for internet browsers.

However, it is possible to argue that Microsoft is a monopoly in terms of operating systems.  The company has been found guilty of antitrust violations in this regard.  The most compelling reason to call Microsoft a monopoly is the fact that over 95% of PCs run Windows.  Even if we take Apple computers into account, Microsoft controls over 80% of the market for operating systems for personal computers of all sorts.  This, it can be argued, makes it a monopoly.