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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
Q. Explain about Error detection method? Error detection: error can occur in CPU, in I/O devices or in memory hardware. Operating system constantly needs to be aware of possi
Determine an imperative statement Imperative statement points out an action to be carried out during execution of assembled program
why we say " OS is a resource allocator" and “OS is a control program"?
Internal file structure All disk I/O is performed in units of single block, and all blocks are the similar size. It is unlikely that the physical record size will exactly match
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 othe
Gopher Gallery consists of a shopping mall and a cart ride that covers the 150 acre habitat. There are m visitors and n single-person vehicles. Visitors stroll around the mall at
what is Number System
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
A set of methods that allow executing a program which is not completely in memory is called A set of methods that allow executing a program which is not completely in memory
Q. What are the three main activities of an operating system in regard to memory management? Answer: a. Keep follows of which parts of memory are currently being used and
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