microTone Module is analog interface to connect microcontrollers or digital logic systems with PCs. This interface use PC sound card’s audio output terminal to send commands to external hardware systems.
Visual Synapse are component wrappers around the Synapse tcp/ip libraries. It wraps a few common internet protocols, like HTTP, UDP, DNS, ICMP, TCP and SMTP to multi-threaded components that can be used with Delphi, Kylix, Freepascal and C++ Builder.
Bot that following the connections interwikis of El Salvador, to add to the original page (that is El Salvador) the present connections in a connected page (that treats about El Salvador) that lacks in the version in Spanish of wikipedia.