(1) (
Silicon-
Oxide-
Nitride-
Oxide-
Silicon) See
charge trap flash.
(2) A very popular multi-room audio system from SONOS, INC., Santa Barbara, California that unifies all the user's local and Internet-based music sources and delivers them to wireless speakers throughout the home over Wi-Fi. Control is via the SONOS app in a PC, Mac, iOS or Android device, and SONOS CONNECT components can integrate an existing stereo, home theater or ordinary speakers into the SONOS wireless system. The company was founded in 2002.