Description: Group memory is a concept in memory management of operating systems that refers to an area of memory shared among a set of processes or threads. This memory allows multiple entities within an operating system to access and modify data simultaneously, facilitating communication and cooperation among them. Unlike private memory, which is exclusive to a single process, group memory promotes efficiency and speed in executing tasks that require collaboration. The main characteristics of group memory include its ability to be accessed by multiple processes, which reduces the need to duplicate data and improves overall system performance. Additionally, managing shared memory must be carefully controlled to avoid concurrency issues, such as race conditions, where two or more processes attempt to access and modify the same data simultaneously. Therefore, synchronization mechanisms, such as semaphores and mutexes, are implemented to ensure that access to shared memory is safe and orderly. In summary, group memory is a fundamental tool in concurrent programming and in optimizing resource use in computing systems.
