Operating System Programming and Technical

Q. What is a Real-Time System?

A. A real time process is a process that must respond to the events within a certain time period. A real time operating system is an operating system that can run real time processes successfully

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Operating System Other Question

Q. What is Memory-Management Unit (MMU)?

A. Hardware device that maps virtual to physical address. In MMU scheme, the value in the relocation register is added to every address generated by a user process at the time it is sent to memory. ->The user program deals with logical addresses; it never sees the real physical addresses Q. What is a trap and trapdoor?

A. Trapdoor is a secret undocumented entry point into a program used to grant access without normal methods of access authentication. A trap is a software interrupt, usually the result of an error condition