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shell to be able to execute the most recent command and also be able to execute a specified command from the history. I have the printHistory function working properly. That is, when the user enters "history" it gives a list of the last ten commands entered. I need to add when the user enters "!!" to execute the most recent command and when the user enters "!n" n being an integer between 1 and 10, the specified command executes.
Consider a computer system where the overhead required for reading a word from the page table is 1.25ms. A TLB lookup of a word requires 250 ns.
Formulate the linear programming model for this problem Plot a graph indicating and labelling clearly all the constraints, the feasible region (R) and the optimal point (X)
Construct a plan to set up a local area network based on the scenario given in Appendix A. Prepare a boardroom-quality Microsoft?
What makes Vista better (or worse) choice for home or office computing? Explain general features of the operating system.
In the BitTorrent P2P file distribution protocol, the seed breaks the file into blocks, and the peers redistribute the blocks to each other.
Business continuity planning is important for large and small company. Explain briefly the importance of a business continuity plan under the given heads.
A typist is entering text on a keyboard at the rate of 30 words per minute. If each word is 6 characters long on average, how many bits per second are being sent to main memory? A space is also a character. Assume that each word is followed by one sp..
Assume a time sharing operating system allocated time slices of twenty milliseconds and the machine executed an average of 5000 instructions per microsecond.
In Peterson's Algorithm, if both processes want to enter the critical section, can one process repeatedly use the critical section if both have reached the while loops? Explain.
The creation and use of calculating technology enables new capabilities. For example, information and decision rules can be captured and copied more easily,
In recent computer trend sources, it has been discussed that the OS are likely to become more user friendly, voice driven, stable, and even will repair themselves when required.
Processor X has a clock speed of 2Ghz and takes one cycle for integer operations, two cycles for memory operations, and four cycles for floating point operations.
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