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List disadvantages of using a single directory.
Users have no privacy. Users must be careful in choosing file names, to avoid names used by others. Users may destroy each others' work.
What are privileged instructions? Some of the machine instructions that may cause harm to a system are designated as privileged instructions. The hardware permits the privilege
how is it possible
advantage and dis advantage of threads
What are the various layers of a file system? The file system is composed of many dissimilar levels. Each level in the design uses the feature of the lower levels to make new f
A page fault causes the following sequence to occur. 1. Trap (shut in) to the operating system. 2. Save the process registers and process state. 3. Verify that the interr
Write a short note on PCB? Every process is represented in the operating system by a process control block also called a task control block. It contains more information regard
Explain the OS/2 Operating System Like NetWare, OS/2 manage resources at three levels, as shown in Figure 4.5 Resources may be maintained at the session, process, and thread le
Prepare Gantt Charts and Determine the Average Waiting Time 1. Classify the interaction among the processes on the basis if degree to which they are aware of each other's exi
whats the problem in two state model ?
List five services provided by an operating system. Explain how each provides convenience to the users. Explain also in which cases it would be impossible for user-level programs t
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