HTC with Microsoft afterwards due to Nokia's dominance in Windows Phone devices, and started focusing solely on Android. On 1 March 2015, HTC unveiled Vive, a virtual reality head-mounted display in collaboration with Valve Corporation. In June and October 2015, HTC reported net losses; the company has faced increased competition from other smartphone makers, including Apple, Samsung, and others, which had resulted in a decline in its smartphone sales, as well a major loss of market share. Its smartphone market share had risen back to 7.2 percent in April 2015 due to its strong sales of recent devices, but HTC's stock
Operating system However, Windows' usage on servers is not as widespread as on personal computers as Windows competes against Linux and BSD for server market share. ReactOS is a Windows-alternative operating system, which is being developed on the principles of Windows without using any of Microsoft's code. There have been many operating systems that were significant in their day but are no longer so, such as AmigaOS; OS/2 from IBM and Microsoft; classic Mac OS, the non-Unix precursor to Apple's macOS; BeOS; XTS-300; RISC OS; MorphOS; Haiku; BareMetal and FreeMint. Some are still used in niche markets and continue to be developed