Diploma Computer Management (DCM) - The term Computer Management refers to the manipulation of documents and data in files on a computer. Specifically, one may create a new file or edit an existing file and save it; open or load a pre-existing file into memory; or close a file without saving it. Additionally, one may group related files in directories. These tasks are accomplished in different ways in different operating system sand depend on the user interface design and, to some extent, the storage medium being used.