## Chapter 18 Serial Communications
[[!toc levels=3]]
-## Synopsis
+***Reorganized, and parts rewritten by Ivailo Mladenov. ***
+## Synopsis
UNIX® has always had support for serial communications. In fact, the very first UNIX machines relied on serial lines for user input and output. Things have changed a lot from the days when the average ***terminal*** consisted of a 10-character-per-second serial printer and a keyboard. This chapter will cover some of the ways in which DragonFly uses serial communications.