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3 cards from this section. Quick, good the night before a test.
What is a system call?
Think about how applications communicate with the operating system.
Name two types of device files.
Consider how devices handle data.
What allows user applications to request services from the kernel?
It's a direct method of communication between user applications and the kernel.
True or False: Shared memory requires data copying between user and kernel space.
Think about how shared resources work.
Consider a situation where a user application needs to access a hardware device. Discuss which mechanisms would be essential and why.
Think about how applications communicate with both the operating system and hardware.
Analyze the importance of proper signal handling in a real-time application. What could happen without it?
Consider an order-processing application that needs to respond to user commands in a timely manner.
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