Operating System (OS)
Non-modifiable procedures are called

None of these
serially usable procedures
concurrent procedures
reentrant procedures
topdown procedures

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Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Controlling the fuel injection system of an automobile engines
Ensuring that system clock works correctly on server
Controlling access to a shared printer in a network
Managing the access to system files in a laptop computers

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