Apache 2.x can be configured to use the prefork MPM which behaves in a similar fashion to 1.x. There are even advantages to this method. Postfix is another gre

Apache 2.x can be configured to use the prefork MPM which behaves in a similar fashion to 1.x. There are even advantages to this method. Postfix is another great example of a high quality piece of software that is not threaded. There are many other examples. It is entirely possible to write complex systems that perform well without threads.