BlackBerry Tablet OS
Operating system
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BlackBerry Tablet OS is an operating system from BlackBerry Ltd based on the QNX Neutrino real-time operating system designed to run Adobe AIR and BlackBerry WebWorks applications, currently available for the BlackBerry PlayBook tablet computer. Wikipedia
Latest preview: 2.1.0.840 / August 14, 2012
Latest release: WiFi2.1.0.1917 (March 31, 2014; 10 years ago), LTE 2.1.0.1917 (March 31, 2014; 10 years ago)
OS family: QNX (Unix-like)
Update method: OTA