G

No Glossary Terms

H

Hardware
Hardware is the physical part of a computer which can include hard drives, circuit boards inside a computer, and other computer components.

High-Level Data Link Control (HDLC)
HDLC is a Data Link Layer protocol used for wide area connectivity.

Hypertext Markup Language (HTML)
HTML is the language the Web uses for creating and recognizing hypermedia documents. HTML is known for its ease of use. HTML documents are 7-bit ASCII files, with formatting codes that contain information about layout (text styles, document title, paragraphs, and lists) and hyperlinks.

Hypertext Transfer Protocol (HTTP)
HTTP is an application-level protocol used to send information between computers attached to the Web.

I

Industry Standard Architecture (ISA)
ISA is an older, 8- or 16-bit PC bus technology used in IBM XT and AT computers. See "bus."

Input/Output (I/O)
An I/O channel is the path from the main processor, or CPU, of a computer to its peripheral devices.

Interexchange Carrier (IEC)
IEC (also IXC) is a service provider that carries user transmission across long distances (e.g., AT&T, MCI, and Sprint).

Integrated Services Digital Network (ISDN)
ISDN can be characterized as a bundle of services offered for the transmission of voice, data, and other forms of communication via the switched telephone network.

Internet Protocol (IP)
IP is the protocol responsible for getting packets of information across a network.