Zephyr (protocol)
| Internet protocol suite |
|---|
| Application layer |
| Transport layer |
| Internet layer |
| Link layer |
Created at MIT as part of Project Athena, Zephyr was designed as an instant messaging protocol and application-suite with a heavy Unix background. Using the "do one thing, do it well" philosophy of Unix, it was made up of several separate programs working together to make a complete messaging system. Zephyr and IRC were the first widely used IP-based instant-messaging systems.