A type of Windows backup that backs up all files and folders that have changed since the last normal backup, and removes the archive bit. This backup type is the fastest one to perform but requires that you restore all incremental backups in sequence since the last normal backup.
Infrared Data Association (IrDA)
A specification that allows a computer or peripheral device to use infrared communication to create a connection.
instance
One of a group of performance objects that represents multiple occurrences of the same object, such as processors in a multiple processor computer or hard disks in a computer with more than one hard disk.
Integrated Drive Electronics (IDE)
An electronic interface for connecting to storage devices.
Internet Connection Firewall (ICF)
The personal firewall software incorporated in Windows XP Professional that filters incoming TCP/IP traffic. Microsoft replaced ICF with Windows Firewall in Windows XP SP2.
Internet Connection Sharing (ICS)
The simplified system of routing Internet traffic through a Windows XP Professional computer so other computers on the network that are not connected to the Internet can access the Internet.
Internet Information Services (IIS)
The web server ssoftware component included in Windows XP.
Internet Printing Protocol (IPP)
A protocol that uses HTTP to send print jobs across the Internet or corporate intranet to remote printers connected to computers running IIS. Windows 2000, Windows XP, and Windows Server 2003 support this protocol.
Internet Protocol Security (IPSec)
An encryption and authentication protocol that is used to secure data transmitted across a network. It is used with L2TP to create a VPN tunnel.
IP address
A logical 32-bit address that is used to identify both a host and a network segment. Each network adapter on an IP network requires a unique IP address.
Ipconfig
The command-line utility that provides detailed information about the IP configuration of a Windows XP computer's network adapters.
Internet Connection Firewall (ICF)