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OPERATING SYSTEM
1. Describe the term operating system. Write down the functions of operating system.
2. Explain Thread? Write down the advantages and disadvantages of threads.
3. Differentiate between Single Partition Allocation and Multiple Partition Allocation.
4. Express the need of Page Replacement Algorithm? Explain the concept of FIFO page replacement algorithm.
5. What do you understand by a file? Write down the operations on files.
6. What do you mean by multiprocessor? List the advantages of multiprocessor systems.
What is long-term, medium-term, short-term? In a batch system many processes are submitted than are able to be executed immediately. These processes are reel to a mass storage
Recall that condition variables are synchronization primitives that enable threads to wait until a particular condition occurs. Generalizing, the combination of locks and condit
1. On every access, mark the page with a timestamp. Whenever we need to evict a page, we search through memory for the oldest page, the least-recently used page. But we need memory
A file system depends on data structures about the files, beside the file structure. The former is named metadata-data that defines data. Each file is accumulated with an inode, wh
Determine the reasons for Poor response time Process busy or High I/O rates or High paging rates
Explain what ISAM is. Indexed sequential access method. The file is stored in sorted order. ISAM has a master index file, indicating in what part of another index file the key
What is the main advantage of multiprogramming? Multiprogramming makes efficient use of the CPU by overlapping the demands for the CPU and its I/O devices from various users. I
Synchronization can be achieved by means other than locks and condition variables. One alternative is semaphores. A semaphore is used to regulate traf?c in a critical section. A se
Question: a. The following questions refer to a generic Windows file system: i) Describe what happens when you high-level format a floppy disk? ii) What is the maximum size
what is ROM bios device driver
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