Sled dog It has been billed as the "World Series of mushing events" and "The Last Great Race on Earth". The first Arctic explorers were men with sled dogs. Due to the success of using sled dogs in the Arctic, it was thought they would be helpful in the Antarctic exploration as well, and many explorers made attempts to use them. Sled dogs were used until 1992, when they were banned from Antarctica by the Protocol on Environmental Protection to the Antarctic Treaty. Carsten Borchgrevink used sled dogs in Antarctica in 1898, but it was much colder than expected at Cape Adare.
Drive letter assignment Drive letter assignment In computer data storage, drive letter assignment is the process of assigning alphabetical identifiers to volumes. Unlike the concept of UNIX mount points, where volumes are named and located arbitrarily in a single hierarchical namespace, drive letter assignment allows multiple highest-level namespaces. Drive letter assignment is thus a process of using letters to name the roots of the "forest" representing the file system; each volume holds an independent "tree" (or, for non-hierarchical file systems, an independent list of files). The concept of drive letters, as used today, presumably owes its origins to IBM's VM family of operating