header label; beginning-of-file label; HDR
Computing term for a label placed at the start of a file or data structure, often used in file formats, magnetic tapes, or data processing.
A header label is recorded at the beginning of the magnetic tape.
このファイル形式では、見出しラベルに作成日時が含まれる。
In this file format, the header label contains the creation date and time.
Compound of 見出し (みだし, 'heading' or 'index entry') and ラベル ('label'), a direct calque of English 'header label'.