Portastudio
Portastudio refers to a series of multitrack recorders produced by TASCAM beginning in 1979 with the introduction of the TEAC 144, the first four-track compact cassette-based recorder. A TASCAM trademark, "portastudio" is commonly used to refer to any self-contained multitrack recorder dedicated to music production.
The Portastudio is credited with launching the home recording revolution by making it possible for musicians to easily and affordably record and produce multitrack music at home and is cited as one of the most significant innovations in music production technology.