Updated: 10/11/2017 by Computer Hope

HD may refer to any of the following:


1. Abbreviation used for hard drive, although more commonly abbreviated as "HDD" for hard disk drive.

2. Short for high-definition, HD is used to describe a device, video, or audio that is the absolute best in quality, especially when compared with SD (standard-definition). See the HDTV definition for further information and related links.

3. HD is a device name for hard drive.

4. Short for high-density, HD is a type of floppy diskette. See our high-density disk definition for further information.

Computer acronyms, HDTV, HQ