KA9Q NOS TCP/IP Package: Second known implementation of Internet protocol (IP) for low-end computers; can at once be network client, server, IP packet router; support multiple client and server sessions. Description, downloads, zip format. Original author.
x-kernel: Object-based framework to implement network protocols; defines an interface that protocols use to invoke operations on one another (i.e., to send messages to and receive messages from adjacent protocols) and a collection of libraries to manipulate messages, participant addresses, events, associative memory tables (maps), and threads.