2007-05-15 05:41:22 · 2 answers · asked by lane_saugt_hahn_fur_drogen 1 in Computers & Internet ➔ Computer Networking
Core protocols like IP, TCP, UDP have essentially remained unchanged since the early 80s. Protocols however like email (SMTP) have had a lot of extensions. When new applications came along, some new protocols were developed that could run on the top of the older ones. You might want to look up the OSI model to understand how this works.
You might also want to look at IP as an example of change. IPv4 is the current protocol the Internet uses, IPv6 is the new version. It incorporates things that were only available when running protocols on top of the old IPv4 such as security. IPv6 requires major changes as it's not really compatible with IPv4 without some kind of translation (gateway). Something like the extensions to SMTP are not quite as drastic.
2007-05-15 06:08:33 · answer #1 · answered by Richard 3 · 0⤊ 0⤋
They improve
2007-05-15 05:44:57 · answer #2 · answered by Cupcake 7 · 0⤊ 0⤋