Etymology
Advertisement
desktop (n.)

also desk-top, "the top of a desk," 1873, from desk + top (n.1). As an adjective meaning "suitable for use on a desktop," it is recorded by 1952 (desk-top supplies). As a shortening of desktop computer, by 1983. Desktop publishing recorded from 1984.

Related entries & more 
Advertisement
laptop 
also lap-top, in reference to a type of portable computer, 1983 (adjective and noun), from lap (n.1) + top (n.1), on model of desktop.
Related entries & more 
Oz 
mythical land in L. Frank Baum's "The Wonderful Wizard of Oz" (1900) and sequels; according to an anecdote written by Baum in 1903, inspired by a three-drawer desktop cabinet letter file, the last drawer labeled O-Z. As Australian slang for "Australia," attested by 1983.
Related entries & more