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What is Process Control Block ? Today in this Computer Science Study Material for Gate we will discuss about process control block and its various field which provides the information about process. .So let see what is process control block. A Process Control Block is a data structure maintained by the Operating System for every process. Each process has it own data structure. When a process is created then a unique id is assigned to the process Operating system identify a process among all processes on the basis of this process id. A PCB keeps all the information needed to keep track of a process. Generally a process control block contains the following information about a process. To read full tutorial click on the given link http://www.computersciencejunction.in/2018/02/introduction-to-process-control-block-in-operating-system.html