A "safe sequence" in computer science refers to a specific order in which processes can be executed without causing a deadlock in a multi-tasking environment. It is part of the Banker's Algorithm, which helps manage resource allocation among multiple processes. A safe sequence ensures that all processes can complete their execution with the available resources. To determine a safe sequence, the system evaluates the maximum resource needs of each process and compares them to the currently available resources. If a sequence exists where each process can finish without waiting indefinitely for resources, that sequence is considered safe. This helps maintain system stability and efficiency.