ハードディスクhaadodisuku

1. noun, computinghard disk (drive); hard drive
   外付そとづけのハードディスクに保存ほぞんしといて。↗

   Save it on the external hard drive.

• SynonymHDNeutralShort for 「ハードディスク」; identical in meaning and freely interchangeable. Common in spec sheets and product descriptions, or as a casual spoken short form.
• Related固定ディスクこていディスクWrittenA written, technical term for a disk whose platters cannot be removed from the drive, unlike removable media such as floppies; an older term now rarely used.

For a computer hard disk, 「ハードディスク」 is the usual word; 「HD」 is its abbreviation, fine in specs, product descriptions, or casual speech. 「固定ディスク」 is an older technical term, now rarely used.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 磁性体じせいたいを塗ぬったアルミニウムの円盤えんばん。また、それを使用しようした外部がいぶ記憶装置きおくそうち。