In VM/370:(a) Filetypes recognized by the CMS Editor as having specific default attributes that include record size, associated with that particular filetype. The CMS Editor creates a file according to these attributes.(b) Filetypes recogni zed by CMS commands; that is, commands that only search for and use particular filetypes, or create one or more files with a particular filetype.; 在IBM的操作系統(tǒng)VM/370中：(1)會話監(jiān)督系統(tǒng)(CMS)編輯程序認可的一種含有指定系統(tǒng)設定屬性的文件類型。系 統(tǒng)設定屬性包含記錄長度。這種文件類型只與特定的文件類型有關。CMS編輯程序根據(jù)這些 屬性來建立一個文件。(2) CMS命令所能識別的文件類型，這些命令僅僅檢查并使用特定的 文件類型，或者用一個特定文件類型來建立一個或多個文件。