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the key to preventing problem involving shared storage is get some way to prohibit more than one process from reading and writing the shared
in view of the fact that processes frequently need to communicate with other processes therefore there is require for a well-structured interaction
a multilevel queue scheduling algorithm divides the ready queue in several separate queues for example in a multilevel queue scheduling
multilevel feedback queue-scheduling algorithm enables a process to move among queues. it uses a number of ready queues and acquaintances a
priority scheduling the fundamental idea is straightforward each process is assigned a priority and priority is permitted to run.
the srt is the preemptive complement of sjf and helpful in time-sharing environment. in srt scheduling the process with the least estimated
it is also known as shortest-process-next spn. shortest-job-first sjf is a non-preemptive order in which waiting job or process with the
find the newton raphson iterative formula for a reciprocal of a number n and hence find the value of 123.correct to 5 place of
round robin rr is one of the simplest oldest fairest and most extensively used algorithms. in the round robin scheduling processes are posted in
fcfs algorithm also known as first-in-first-out fifo run-until-done run-to-completion possibly first-come-first-served
the scheduling algorithms can be divided into two parts with respect to how they deal with clock interrupts. 1 nonpreemptive
definition of cpu scheduling the assignment of physical processors to processes allows processors to complete work. the process of determining
advantages- sharing treads permit the sharing of a lot resources that cannot be shared in process for instance sharing code section data
in this technique the kernel knows about and handles the threads. no runtime system is required in this case. in place of thread table in each
user-level threads apply in user-level libraries before via systems calls so thread switching does not require to call operating system and to cause
following are some causes why we use threads in designing operating systems. a process with several threads makes a great server for instance
in many respect threads operate in the similar way as that of processes. a number of the similarity and differences
regardless of of the fact that a thread must execute in process the process and its associated threads are different notion. processes are used to
the client-server model firmly differentiates the roles of the client and server. according to this model the client requests services that are
process states throughout the life of a process its execution position may be in one of four states linked with each state is generally a
a process is a chronological program in execution. the constituents of a process are the following the object program to be executed described
in computing a system call is how a program asks for a service from an operating system3939s kernel. this may contain hardware related services for
resource sharing is a concept which has developed to contain many cooperative activities among libraries and other stakeholders. interlibrary loan