Dr. Mark Humphrys

School of Computing. Dublin City University.

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PC operating systems (single user)

Microsoft dominance. Been that way for a long time.

Usage share of PC operating systems, 2014.
Microsoft near-monopoly.

Desktop Operating System Market Share, 2015, by marketshare.hitslink.com

Usage share of desktop operating systems up to 2015.
From StatCounter.com (and see their main site).

PC operating systems

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