glossary D
The Digital Subscriber Line (DSL) refers to a technology for bringing high-bandwidth information to homes and small businesses over ordinary copper telephone lines.
Distillation refers to the first step in the refining process. During distillation, crude oil is heated in the base of a distillation tower.
Device can be taken to mean:
1. An electrical device designed to carry power;
Digital command control has something to do with the method of controlling multiple trains and accessories using digital communications packets to send commands.