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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,
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What is a page table base register?
Each process running on a processor needs its own logical address space. This can only be realized if each process has its own page table. To support this, a processor that supports virtual memory must have a page table base register that is accessible by the operating system. For operating system security, this register is only accessible when the processor is in system mode. The operating system maintains information about each process in a process control block. The page table base address for the process is stored there. The operating system loads this address into the PTBR whenever a process is dispatched.
What is best fit in operating system?
The allocator places a process in the smallest block of unallocated memory in which it will fit.
What is the function of process control block?
A process in an operating system is represented by a data structure known as a process control block (PCB) or process descriptor. The PCB contains important information about the specific process includingThe current state of the process i.e., whether it is ready, running, waiting, or whatever.Unique identification of the process in order to track "which is which" information.A pointer to parent process.Similarly, a pointer to child process (if it exists).The priority of process (a part of CPU scheduling information).Pointers to locate memory of processes.A register save area.The processor it is running on.The PCB is a certain store that allows the operating systems to locate key information about a process. Thus, the PCB is the data structure that defines a process to the operating systems.
What are the steps performed by an operating system to create a new process?
1. Assign a unique process identifier to the new process.2. Allocate space for the process.3. Initialize the process control block.4. Set the appropriate linkages.5. Create or expand other data structures.
What is the Purpose of process control block diagram?
The purpose of process control block diagram is to make the process fast and accurate. It guides an engineer to achieve the target in time
