A directory service defines a namespace for the network. The namespace is used to assign a name (unique identifier) to each of the objects. Directories typically have a set of rules determining how network resources are named and identified, which usually includes a requirement that the identifiers be unique and unambiguous.
The Houston Oilers moved to Tennessee and became the Tennessee Oilers for the 1997 season. The team changed their name from Oilers to Titans in 1999. 1 person found this useful.
They originally were called the Houston Colt .45s in 1962 and changed their name to the Houston Astros in 1965 when they started playing in the Houston Astrodome. The Astrodome was so-named because Houston is the center of the U.S. Space Program.