what are hierachies are used for process in operating systems
process
Also known as the process state, the execution context is the internal data the Operating system uses to control or supervise a process.
All of the information needed to keep track of a process when switching is kept in a data package called process control block.s A PCB is a data structure in the operating system kernel containing the information needed to manage a particular process. The PCB is the manifestation of a process in an operating system,
Regarding the basic working of the Processes in operating system you can check the video It explains the basic working of the process and handling by operating system with all its required data structure.
Processes are an operating system concept used to allow multiple programs to appear to run simultaneously on one computer. The operating system allocates at least one process to every program and switches periodically from running one process to another process.As a process is a concept, not a physical object, it does not actually contain anything.
rather than a child studying at home it is better to study at a school.from school a child can get a higher education than studying at home
Booting is the process a computer fallows by loading all necessary files to run an operating system.
An individual who is in the process of studying to become a nurse.An individual who is in the process of studying to become a nurse.An individual who is in the process of studying to become a nurse.An individual who is in the process of studying to become a nurse.An individual who is in the process of studying to become a nurse.An individual who is in the process of studying to become a nurse.
what are hierachies are used for process in operating systems
There is no such concept of a "Preemptive Process"
True
process
Operating principle refers to the fundamental concept or mechanism that guides the functionality of a system or process. It outlines the basic rules or procedures that govern how something operates and helps to provide a clear understanding of how different components interact with each other to achieve a specific goal.
The keyboard plays an important role in "information input". Only with the keyboard's help we are able to input the necessary operating command and the text data into the computer. Without keyboard the computer will be unable to process anything and it will not be able to receive the user's operating instructions
A program is a passive entity as opposed to process which is an active entity.essentially program just constitues the disk/memory image of a process in any operating system. This distinction is very important for multitasking operating systes. However in case of Serial Operating systems the scenario is quit diffrent. As you might know that many devices within the systems generate intterupts and when an inturrpt occurs the processor suspends the execution of currently executing task , saves its state and executes some another Interrupt Handler e.k.a a another process. This is exactly the same feature that is exploited by Multi Tasking operating systems to pre-empt a process after its time quantum has expired. So even in serial/sequential operating systems such as DOS etc the distincition of process and program is important because you can only associate execution context with a process not a program. One scenario that i can think of where process & program means one and the same thing to an OS are the Old Batch Operating Systems. There once a job(program) was submitted the control of entire machine goes in the hand of the job(process). There the OS does not /cannot diffrentiate between a process and program. The submitted job does all the necessary scheduling / interrupt control with in itself. Also older batch operating systems ran on hardware that sometime had no notion of Interrupts. I hope that might help you, Thanks
Also known as the process state, the execution context is the internal data the Operating system uses to control or supervise a process.