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Explain the various file types
A common technique for executing file types is to contain the type as part of the file name. The name is split into two parts - a name and an extension, usually divided by a period character. The file with a .com, .exe, or .bat extension can be implemented. Assembler expects source files to have an .asm extension.
Acyclic Graph Directories In this kind of directory structure the shared directories or files can exist in the file system in two or more places at once. A tree structure excl
Q. What is the use of system calls? Answer: System calls permit user-level processes to request services of the operating system.
Define the Sleep (sec) Function Sleep function suspends execution of this process for sec number of seconds. While this function is used in our example for consistency, other f
Now we consider the following questions: how can the parent process communicate with its child? Or how can children processes communicate with other children? The exact answer depe
Define lazy swapper. Rather than swapping the entire process into main memory, a lazy swapper is used. A lazy swapper never swaps a page into memory unless that page will be ne
with the aid of diagrams describe the following OS structure monolithic,layered and client server.
Gang Scheduling : A set of related process is scheduled to execute on a set of processors at the similar time, on a 1-to-1 basis. Closely related processes or threads may be sched
Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
Explain process scheduling in time sharing The relevant features of time sharing are: 1. Process priorities do not depend on the nature of the processes 2. Proc
Grouping Threads That Execute Similar Functions Thread Groups are generally used to group threads that execute similar functions of the application program. For instance, if
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