TAPI (Telephone Application Programming Interface)
Telephony Application Programming Interface is a Microsoft Windows API, which provides computer telephony integration and enables PC's running Microsoft Windows to
 TCP/IP (Transmission Control Protocol and Internet Protocol)
The Internet protocol suite is the set of communications protocols that implements the protocol stack on which the Internet and many commercial networks run. It is part of the TCP/IP protocol suite, which is named after two of the most important protocols in it: the Transmission Control Protocol (TCP) and the Internet Protocol (IP), which were also the first two networking protocols defined. A review of TCP/IP is given under that heading. Note that today's TCP/IP networking represents a synthesis of two developments that began in the 1970's, namely LAN's (Local Area Networks) and the Internet, both of which have revolutionized computing.
 Terminal Server
A terminal server is a specialized computer which aggregates multiple communication channels together. Because these channels are bidirectional, two models emerge: Multiple entities connecting to a single resource, and a single entity connecting to multiple resources. Both of these models are widely used. Both physical and virtual resources can be provided through a terminal server: centralized computing can provide multiple users access to a remote visual operating system.

|