Internal OS
The PRS-T1 runs a heavily modified version of the Android operating system, which Sony mentions in the Legal Notices installed on the device.
Its predecessors run the MontaVista Linux Professional Edition operating system.
Read more about this topic: Sony Reader
Famous quotes containing the word internal:
“The internal effects of a mutable policy ... poisons the blessings of liberty itself.”
—James Madison (1751–1836)