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1. Describe a purpose for the file open system call that was not mentioned in the text.
2. To be able to make some predictions of disk performance, it is useful to have a model of storage allocation. Suppose that the disk is viewed as a linear address space of N >> 1 sectors, consisting of a run of data blocks, then a hole, then another run of data blocks, and so on. If empirical measurements show that the probability distributions for data and hole lengths are the same, with the chance of either being i sectors as 2-i , what is the expected number of holes on the disk?
How are shared memory, message passing, RPC, sockets, and pipes implemented practically in systems such as POSIX, Mach, and Windows?
Describe in general how the system is being used and explain the effect on the above measurement (CPU utilization) if the following occurred
Fragmentation on a storage device could be eliminated by re-compaction of the information. Typical disk devices do not have relocation or base registers (such as are used when memory is to be compacted)
what is shared data problem ? explain in briefly ? which is related to embedded system topics ? ltbrgt
Assume that a computer using direct mapped cache has 2^24 words of main memory and a cache of sixty-four blocks, where each cache block contains sixteen words.
Describe how you would use a negative feedback loop to manage your bank balance.Describe how you would do so with a positive feedback loop. Explain which you would prefer and why?
What is a firm's fully qualified domain name and what is the significance of the. Discuss the benefits and drawbacks of mobile email and text messaging in the work place.
Compare windows Operating system with mac OS. write advantages and disadvantages of both (400 words). 2. Briefly discuss the usage of the following Microsoft office software (800 words)
Explain how the computer system accommodating the 2G memory requirement by only using 1G physical memory. Assume that the page size is 4M, and so is the page frame size and Explain what logic memory addresses are, what physical memory addresses are..
Explain the process of setting the Seimens S7-12000 PID Block's status manual, to automatic. Be specific
Design a memory management scheme for a 64 bit architecture, using various types of paging and/or segmentation available. Then highlight its advantages and disadvantages. Your scheme must be different from your colleagues' schemes.
Submit a write-up as well as your program. Your write-up should include any known bugs, limitations, and assumptions in your program. This write-up should be in text-format and titled as ‘README'.
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