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General graph directory
The serious problem with using an acyclic-graph structure is ensuring that there are no cycles. When we insert links to an existing tree-structured directory, the tree structure is damaged, resulting in a simple graph structure.
If cycles are permitted to exist in the directory, we likewise require to avoid searching any component twice, for reasons of correctness as well as performance.
Determine a scheduling policy that is most suitable for a time-shared operating system Round-Robin is a scheduling policy that is most suitable for a time-shared operating s
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
What is graceful degradation? In multiprocessor systems, failure of single processor will not halt the system, but only slow it down by sharing the work of failure system by ot
LRU evicts the page which was last accessed the farthest into the past of any page resident in physical memory, i.e. the least-recently used page. LRU approximates OPT when the rec
Characteristics of suspend process Suspended process isn't immediately available for execution. The process may or may not be waiting on an event. For preventing t
Q. Why High level languages need Compiler? High level languages - illustrations are COBOL, FORTRAN, PL/I andALGOL - are processed by interpreters andcompilers. A compilers is a
Basic File System Uses the specific device driver. Deals with blocks of data that are exchanged with the physical device. Concerned with the placement of blocks on
Q. What is the basic function of Assembler ? Input to an assembler is an assembly language program. Output is an object program and information which enables the loader to prep
my Operating System is windows trust but when the windows start say its windows xp. help pleaes
Concept of Reentrancy It is a useful, memory-saving method for multiprogrammed timesharing machines. A Reentrant method is one in which multiple clients can share a singl
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