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System Development Life Cycle


The system development life cycle is also know as the waterfall model.

Each textbook may have a slightly different phases.


LRU Replacement Policy


A stream of address 6, 7, 6, 5, 9, 6, 8, 9, 7, 6 is to be entered serially into the cache memory which can only contain 3 page addresses at a time. Show this using the LRU replacement policy.



RPN Question


Question:

Reverse Polish notation combined with a stack provides an efficient way to evaluate arithmetic expressions. Explain with diagram the stack operation on arithmetic expression given in the RPN notation.

10 2 * 8 4 / +


Full Name vs Username

During a chown command, refer to your username and NOT the Full Name.


In the YaST, you can see my example above is lim. So I will chown lim instead of Lim Jet Wee.

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