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A computer has a cache, main memory, and a disk. If a referenced word is in the cache, 20 ns are required to access it. If it is in main memory but not in the cache (called cache miss), 60 ns are needed to load it into the cache (this includes the time to originally check the cache), and then reference is started again. If the word is not in main memory, 12 ms are required to fetch the word from disk, followed by 60 ns to copy it to the cache, and then the reference is started again. The cache hit ratio is 0.9 and the main memory hit ratio is 0.6. What is the average time in nanoseconds required to access a referenced word on this system?
While there are difficult security concerns in any isolated computing environment, addition of a network in geographically distributed facilities.
When a process first start execution, how would you characterize the page fault rate? Once the working set for a process is loaded into memory, how would you characterize the page fault rate?
Analyze a specific company to recognize their foundation for execution, including, and post your results, for example, the operating model for the organization.
Discuss how does management in business or education develop and manage Internet usage as it relates to research, supplemental resources and functional support? Explain your answer with examples.
Describe what a cache is and what its purpose is. Also explain what data gets placed into the cache, and when it is put there.
which page will NRU replace?B) which page wil FIFI replace?C) which page will LRU replace?
Compare zero-, one-, two-, and three-address machines through writing programs to compute X = (A+B X C)/D - E X F)
A procedure is said to be I/O bound if it needs a lot of I/O operations, whereas a procedure that consists of mostly computations within the CPU/memory system is said to be compute bound.
Linda has been asked the job of connecting 5-computers to a network. The room holding 5-computers has 3-network ports that connect to a hub in an electrical closet down the hallway.
Explain the similarities and differences between standard forms, MDI parent forms, and MDI child forms in an MDI application. How is each type of form created?
Perform Internet research to review at least 3 contemporary operating systems (OS). Choose at least one Mac and one Windows OS, along with one of the following OS kinds.
A queue is a first-in, first-out list. The queue has two essential operations: enqueue, which appends an entry to the end of the list (called the tail ) and dequeue, which returns and removes the first entry in the list
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