The term postmodernism has been applied both to the era following modernity, and to a host of movements within that era (mainly in art, music, and literature) that reacted against tendencies in modernism.
A CSU/DSU (Channel Service Unit/Data Service Unit) is a hardware device about the size of an external modem that converts a digital data frame from the communications technology used on a local area network (LAN) into a frame appropriate to a wide-area network (WAN) and vice versa.he Data Service Unit (DSU) manages line control, and converts input and output between RS-232C, RS-449, or V.xx frames from the LAN and the time-division multiplexed (TDM) DSX frames on the T-1 line. The DSU manages timing errors and signal regeneration.
Plugging in the DSL. abbreviation. DSL is defined as an abbreviation that stands for digital subscriber line which is defined as the way a computer connects to the Internet at high speeds using telephone lines. An example of DSL is the phone service that might be down when your Internet connection isnât working. a kind of connection to the Internet that permits the transfer of digital data over ordinary telephone lines at a high rate of speed.