An array in twelve-tone and serial composition is the presentation of two or more simultaneous twelve-tone sets in such a way that the sums of their horizontal segments form a (columnar) succession of twelve-tone aggregates. Array mbira, a musical instrument.
The terminal implements a client-server architecture with the server running on a multiprocessor Unix platform. The client, used by end users to interact with the system, is a Windows application that typically connects directly through a router provided by Bloomberg and installed on-site.
All Bloomberg Terminals are leased in two-year cycles (in the late 1990s and early 2000s, three-year contracts were an option), with leases originally based on how many displays were connected to each terminal (this predated the move to Windows-based application).