hidden keyword
In search engine optimization (SEO), this refers to keywords or phrases that are placed in the HTML source code and are not seen by those visiting the Web page.
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- hidden text
See under keyword stuffing.
- Hierarchical
)Refers to systems that are organized in the shape of a pyramid, with each row of objects linked to objects directly beneath it. Hierarchical systems pervade everyday life. The army, for example, which has generals at the top of the pyramid and privates at the bottom, is a hierarchical system. Similarly, the system for classifying […]
- high definition photo
In digital camera terminology, high definition photo is a shooting mode found on some digital cameras that produces a 1920×1080 pixel high-definition (HD) quality photo that will perfectly fit a wide-screen HDTV (16:9) for full-screen viewing. High definition photos may also be available on some digital cameras when capturing motion picture recording (videos) using the […]
- high-density disk
A high-quality floppy disk capable of holding more data than a double-density disk. High-density 5¼-inch disks for PCs can hold 1.2MB (megabytes) of data. High-density 3½-inch disks can store 1.44MB.
- high-gain antenna
An antenna that is used to increase signal strength. High-gain antennas are necessary for long-range wireless networks.