'''Thread Control Block''' ('''TCB''') is a [[data structure]] in thean [[operating system kernel]] whichthat contains [[Thread (computing)|thread]]-specific information needed to manage itthe thread.<ref>{{Cite web |date=2019-11-26 |title=Thread Control Block in Operating System |url=https://www.geeksforgeeks.org/thread-control-block-in-operating-system/ |access-date=2023-09-04 |website=GeeksforGeeks |language=en-us}}</ref> The TCB is "the manifestation of a thread in an operating system."
An example of information contained within a TCB is: