E
error detection
A technique for detecting when data is lost during transmission. This allows the software to recover lost data by notifying the transmitting computer that it needs to retransmit the data.
Event Viewer
A component you can use to view and manage event logs, gather information about hardware and software problems, and monitor security events. Event Viewer maintains logs about program, security, and system events.
extranet
A limited subset of computers or users on a public network, typically the Internet, that can access an organization's internal network. For example, the computers or users might belong to a partner organization.