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What are files and explain the access methods for files?
File definition
Attributes, operations and types
Direct access
Sequential access with diagram
Other access methods-index with diagram
Determine what the “blocking factor” of a file is Blocking factor is the number of logical records in one physical record
Describe the technique of packing. The physical record size will not accurately match the length of the desired logical record and the Logical records may even differ in length
What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.
The term ‘page traffic’ explains Page traffic’ explains the movement of pages in and out of memory.
why we say" OS is a resource allocator" and “OS is a control program"?
Difference between cache and associate memory
Q. If each the access rights to an object are deleted the object can no longer be accessed. At this stage the object should also be deleted and the space it occupies should be ret
LRU approximation page replacement In this we are able to use the reference bit associated with the page entry to choose a page to be removed. The various algorithms used for
Define a linker program A linker program links the program along with other programs required for its execution.
Lexical substitution during macro expansion Lexical substitution is employed to produce an assembly statement from a model statement. A model statement contains 3 types of stri
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