software platform is supplemented by a second low-level proprietary real-time operating system which operates the radio and other hardware. Research has shown that these low-level systems may contain a range of security vulnerabilities permitting malicious base stations to gain high levels of control over the mobile device.

Mobile operating systems have had the most use of any operating system since 2017 (measured by web use).

Timeline

Mobile operating system milestones mirror the development of mobile phones,

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