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Question 1:
a) State the different file attributes and briefly explain the operations that can be performed on each files.
b) What is a semaphore? Describe why it is important.
c) What do you meant by a deadlock? Explain the necessary conditions for a deadlock to occur.
Question 2:
a) One important aspect of Memory Management is "Paging ". Discuss.
b) Explain the Linked Allocation of disk space to files.
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Write a Perl script assignGrades.pl to assign letter grades to the students.
What are files and explain the access methods for files? File definition Attributes, operations and types Direct access Sequential access with diagram Other access
Unisex Restroom Problem
Problem 1: (a) What are the likely benefits which an organisation may derive from the planning process? (b) Explain the main reasons why an organisation may fail to plan.
In which page replacement policy Balady’s anomaly occurs? FIFO (First in First Out)
How can an index file be used to speed up the access in direct-access files? Have an index in memory; the index gives the key and the disk location of its corresponding record.
Question: (a) Define the term system software and application software, giving an example for each. (b) Draw a diagram to represent the abstract view of a computer system i
List ways to share files among directories in operating systems. a. Copy file from one account into another. b. Link directory entry of "copied" file to directory entry of o
Compare contiguous-memory allocation with pure paging in the following aspects: 1. In support of dynamic memory allocation: most systems allow programs to allocate more memory t
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