direct file
Computing term for a file organization where records are accessed directly by their physical address or key, without sequential scanning.
A direct file allows records to be read and written directly by key.
Sequential file; records are accessed in order, unlike direct file which allows random access.
Indexed file; uses an index for access, while direct file typically uses a hashing or direct mapping method.
Compound of 直接 (direct) + 編成 (organization) + ファイル (file), a calque from English 'direct file'.