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Explain the resources of data structure is used by an operating system to keep track of process information? Explain
A process is a program in execution. An operating system seems as a process to be the basic unit for resource allocation. Following resources could be assigned to a process
a. Memory
b. Secondary memory
c. I/O Devices
d. Files opened through the process
e. CPU time consumed through process
Explain the significance of different fields of an instruction An instruction is a command given to a computer to perform a particular operation on some given data and the form
DUPLICATING PROCESSES : As we mentioned earlier duplicating is a process whereby a master copy is prepared from which a large number of other copies are obtained with the help of
How is a valid user identifier accomplished? A valid user identifier is accomplished within one or more of given ways: • Provide some password, which only user knows. • P
Q. Describe Loading Disk Operating System? Different version of DOS, such as 2.0, 3.0, 3.2, 4.0, 5.0, 6.0, 6.2, 6.22, 7.0, 7.2 are present. The newer versions have additional
What are preprocessor directives? Preprocessor directives: These are the commands given to a program called as pre-processor that processes the source code before it passes by
Information Technology or Information System Before going further we need to clarify what we mean by the term information system. It is easy to confuse terminology as many tex
Described auto increment mode of addressing? Ans: Effective address of the operand is the contents of a register mention in the instruction. After finishing the accessing t
What is the session. Session is a collection of various groups of method. Every session is assigned to a single control terminal. This terminal is either a pseudo-device. or a
shell script to find the factorial of a given number using the for loop
Where Virtual memory is used ? Ans. Virtual memory is utilized in all main commercial operating systems.
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