Short for interexchange carrier, a telephone company that provides connections between local exchanges in different geographic areas. Outlined in the Telecommunications Act of 1996, IXCs provide interLATA service. Well-known IXCs include AT&T, Sprint and MCI.
- I/O adapter
An adapter that converts between the timing and protocol requirements of an intelligent device’s memory bus and those of an I/O bus or network.
- I/O throttling
Short for input/output throttling, a technique used to more efficiently handle memory processing. During low-memory conditions, a system will slow down the processing of I/O memory requests, typically processing one sequence at a time in the order the request was received. I/O throttling slows down a system but typically will prevent the system from crashing.
- I-beam pointer
)A pointer shaped like a capital I used in graphics-based text processing applications. Many desktop publishing systems and word processors use an I-beam pointer to mark blocks of text and move the insertion point. Note that the I-beam pointer is not the same as the selection pointer, which is usually shaped like an arrow.
Short for intraframe, a video compression method used by the MPEG standard. In a motion sequence, individual frames of pictures are grouped together (called a group of pictures, or GOP) and played back so that the viewer registers the video��s spatial motion. Also called a keyframe, an I-frame is a single frame of digital content […]
Short for Infrastructure as a Service, IaaS is defined as computer infrastructure, such as virtualization, being delivered as a service. IaaS is popular in the data center where software and servers are purchased as a fully outsourced service and usually billed on usage and how much of the resource is used – compared to the […]