Hierarchical Storage Management. An automatic system that moves files from hard disk to other storage media after a certain length of time, or according to other specifications of the user.
HSV
Hue, Saturation, Value. A color model similar to HSB (Hue, Saturation, Brightness).
HTML
HyperText Markup Language. The language used to create World Wide Web pages, with hyperlinks and markup for text formatting (different heading styles, bold, italic, numbered lists, insertion of images, etc.).
HTTP
HyperText Transfer Protocol. The protocol most often used to transfer information from World Wide Web servers to browsers, which is why Web addresses begin with http://. Also called Hypertext Transport Protocol.
HWD
Height Width Depth.
Hz
Hertz. The number of cycles per second of an electromagnetic wave; one Hz is equal to one cycle per second. The name comes from Heinrich R. Hertz, the German physicist who discovered electromagnetic waves.
header
1. Text that appears at the top of every page in a document, which can be set up with a template in word processing and page layout programs. 2. The part of a communications packet that contains control information for the packet such as source, destination, input sequence number, and priority level.
hand tool
In graphics programs, a pointer shaped like a hand that is used to select and move things onscreen.
hanging indent
A paragraph in which the first line begins at the left margin, and the rest of the lines are indented. Hanging indents are sometimes used when the first line begins with a number and a space before the text, and succeeding lines are indented to where the text begins in the first line.
