摘要: Several examples of deadlock occurring in present day computer systems are given Next, there is a discussion the strategms which can be ~sed to deal with problem A theory developed so that terms "process" and "deadlock" defined. "Reusable resources" introduced model objects shared among processes, "consumable signals or messages passed processes. Then rumple graph m developed, its propertms investigated This unifies number previous results, leads efficient detection prevenUon algorithms, ~s useful for teaching purposes.