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what is the use of inter process communicationinter process communication gives a mechanism to allow the co-operating process to communicate with
what is co-operative processa process is co-operating if it can affect or be affected by the other processes implementing in the system any process
what is independent processa process is independent it cannot affect or be affected by the other processes implementing in the system any process
what is meant by context switch switching the cpu to another process requires saving the state of the old process and loading the saved state for
what are the use of job queues ready queues and device queuesas a process enters a system they are put in to a job queue these queues having of all
what is schedulers a process migrates between the various scheduling queues throughout its life time the os must select processes from these
what is process control block each process is shown in the os by a process control block it having many pieces of information associated with a
what do you mean by system callssystem calls give the interface among a process and the operating system when a system call is executed it is treated
what are privileged instructions some of the machine instructions that might cause harm to a system are designated as privileged instructions the
what is real time systema real time system has well explained fixed time constraints processing must be done within the explained constraints or the
what is graceful degradationin multiprocessor systems failure of one processor will not halt the system but only slow it down by sharing the work of
what are batch systems batch systems are quite appropriate for implementing large jobs that need little interaction the user can submit jobs and
what is the kernel a more common definition is that the os is the one program running at all times on the computer
what is an operating system an operating system is a program that handles the computer hardware it acts as an intermediate among users of a
what is delegationdelegation gives a proper mechanism to achieve the desired code reuse the method is caught in the desired class and forwarded to
what is normal forma normal form is a guideline for relational database tables that enhances data consistency as tables satisfy higher levels of
what is relational databaserelational database has data that is perceived as tables a relational dbms manages tables of data and associated
what is c reference and java finalassociation ends must be bound at initialization and cannot be altered c references can fully enforce these
what is link destructionlink destruction is inverse of link creation when a link is destroyed makes sure the associated objects accessible by other
what is one-way associationone-way association means association will traverse in only in one direction and implement using the actual implementation
what is system testingthe final step in testing is system testing which means checking the whole application system testing exercises the overall
how will you fine-tune a classit is useful to fine-tune classes before writing code in order to examine development or to improve performance the
what is transformationa transformation is a mapping from the domain of models to the range of models when modeling it is significant not only to
what is reification and behaviourreification is the promotion of something that is not an object into an object behavior usually requires this
what is fan-outestimate the average count of every many association encountered with the path multiply the individual fan-outs who obtain the fan-out