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1) Describe how usability and software quality are related?
2)What do you feel are some of the key design issues as related to the human factors characteristics of a GUI?
Seek time 1 ms for every 100 tracks traversed. Initial track position is 0. Compute average seek time & rotational latency.
Explain the chmod command
Assume that the passwords were eight characters long but that the salt length was increased to 24 bits. Again, the salts (and the corresponding algorithms) are known to all users. What would be the expected time to find all users' passwords using ..
A UNIX file system has 1-kilobyte blocks and 32-bit disk addresses. What is the maximum file size if each i-node contains 20 direct entries and one single, double, and triple indirect entry each? Draw a picture and give all calculations properly anno..
Modify the shell interface program so that is provides a history feature that allows the user to access the most recently entered commands.
What are examples of databases in a work enviroment that could be federated?
medical management committees are convened for nearly all large health care systemsorganizations who determine which
Given a cache access time of 20ns, a main memory access time of 1000ns, and a cache hit ratio of 90 percent. Assuming fetches to main memory are started in parallel with look-ups in cache
Explain what virtual memory is and what its purpose is. Also describe when and how pages are moved between virtual memory and main memory.
After your research, which mobile phone vendor would you choose? Why? Is this the vendor you are currently using for your personal mobile phone
Order the following modulation types in terms of spectral efficiency (best to worse) and explain why (be specific, show a number and how you got it): 64-QAM, QPSK, 8-PSK, and BPSK. Assume that the r=0, perfect filtering.
Consider the advantages and disadvantages of each major operating system that Amy might use on the Web server. In a one-page memorandum to Amy.
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