Input/Output. The term used to describe any operation that transfers data to or from a computer. (See MIMO).
Glossary
I/O
IEEE
Institute of Electrical and Electronics Engineers. A global technical professional society and standards-setting organization serving the public interest and its members in electrical, electronics, computer, information and other technologies.
IEEE 802.11
The family of specifications developed by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 committee which establishes standards for wireless Ethernet networks. 802.11 standards define the over-the-air interface between wireless clients and a base station, or access point that is physically connected to the wired network. (See 802.11, IEEE).
iLink
Sony Corp's name for the high-speed serial bus system defined by the IEEE 1394 standard for input/output technology that connects multimedia and storage peripherals to a PC. (See FireWire).
Internet appliance
A computing device used primarily for Internet access. It can be Wi-Fi enabled or connected to a wired network and generally offers customized web browsing, touch-screen navigation, with built-in e-mail services, entertainment and personal information management applications. Applications cannot be installed independently.
Intrusion detection
A security service that monitors and analyzes system events to identify security breaches to the network and provide real-time warnings when an unauthorized intrusion, or break-in, to the network is attempted. (See Rogue, War chalking, War driving).
IP
Internet Protocol. The basic communications protocol of the Internet. (See IP address, TCP/IP).
IP (Internet Protocol) telephony
Technology that supports voice, data and video transmission via IP-based LANs, WANs, and the Internet. This includes VoIP (Voice over IP).
IP address
Internet Protocol address. IP Version 4, the most widely used Internet protocol, provides 32-bit number that identifies the sender or receiver of information sent across the Internet. An IP address has two parts: The identifier of the particular network on the Internet and the identifier of the particular device (which can be a server or a workstation) within that network. The newer IP, Version 6, provides a 128-bit addressing scheme to support a much greater number of IP addresses. (See DHCP, DNS, IP).
IP telephony
A general term referring to technologies that use IP packet-switched connections to exchange voice, data, video, and other forms of information traditionally carried over public telephone networks. (See IP, VoIP).
IPX-SPX
IPX, short for Internetwork Packet Exchange, a networking protocol used by the Novell NetWare operating systems. Like UDP/IP, IPX is a datagram protocol used for connectionless communications. Higher-level protocols, such as SPX and NCP, are used for additional error recovery services. Sequenced Packet Exchange, SPX, a transport layer protocol (layer 4 of the OSI Model) used in Novell Netware networks. The SPX layer sits on top of the IPX layer (layer 3) and provides connection-oriented services between two nodes on the network. SPX is used primarily by client/server applications. Whereas the IPX protocol is similar to IP, SPX is similar to TCP. Together, therefore, IPX-SPX provides connection services similar to TCP/IP.
ISA
A type of internal computer bus that allows the addition of card-based components like modems and network adapters. ISA has been replaced by PCI and is not very common anymore.
ISDN
Integrated Digital Services Network-A service offered by most telephone carriers that provides high-speed digital service for voice and data over ordinary telephone lines. ISDN uses standard POTS copper wiring to deliver voice, data or video. (See broadband, POTS).
ISO Network Model
A model developed by the International Standards Organization (ISO) that defines seven levels, or layers, in a network. By standardizing these layers and the interfaces that connect them, different portions of a given protocol can be modified or changed as technologies advance or systems requirements are altered. The seven layers are, beginning at the lowest layer: Physical, Data link, Network, Transport, Session, Presentation, Application. The IEEE 802.11 Standard encompasses the physical layer (PHY) and the lower portion of the data link layer which is often referred to as the Media Access Control (MAC) sub-layer. (See PHY).
ISS
A special software application that allows all PCs on a network access to the Internet simultaneously through a single connection and Internet Service Provider (ISP) account.
IBSS with Wi-Fi Protected Setup
Independent Basic Service Set, also known as Ad-hoc networking, enables direct connections among client devices with limited user interface, providing connections to complete short term tasks.