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Virtual File System serves two important functions.
1. It divides file-system-generic operations from their execution by defining a clean VFS interface.
2. The VFS is based on a file-representation structure known as a vnode, which have a numerical designator for a network-wide unique file. This network-wide uniqueness is needed for support of network file systems.
SSTF (Shortest Seek Time First) After a demand go to the closest request in the work queue regardless of direction Decrease total seek time compared to FCFS Disadv
Develop a utility in C language which will run in Linux operating systems to display following properties of the system: ? Processor speed ? Ram size ? Computer name ? System time
short note on context switching
Explain the Spawnvp Function used in the netware Spawnvp(flags, execNmae, argv) This function executes similarly to spawnlp( ) except that parameters are passed as a v
Define secondary memory. This memory holds those pages that are not there in main memory. The secondary memory is usually a high speed disk. It is called as the swap device, an
Operating Systems 1. Explain single Partition Allocation and Multiple Partition Allocation. 2. What do you mean by PCB? What useful information is available in PCB? 3. De
When you run a program on your UNIX system, the system prepares a special environment for that program. This environment owns everything needed for the system to execute the progra
what is dual mode operation
what are reasons for cooperating processes
The general idea of a producer-consumer architecture is related to building a pipeline of threads, similar to the web spider from Project 2. Each step of the processing will now be
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