How can a semaphore be used

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How can a semaphore be used to insure that Process First will complete before Process Second executes?

Describe how transaction logging might apply to a file system, and give an example of a file system that employs transaction loggin.

If a memory access requires 100 nanoseconds, and the computer uses a page table and virtual memory, how long does it take to read a word of program memory? 

If we add a TLB to the computer in the previous question, and 80 percent of the time the page table entry is in the TLB (i.e., the required memory access results in a "hit" in the TLB 80 percent of the time), on average, how long does it take to read a word of program memory?

Reference no: EM13894292

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