Main Page | See live article | Alphabetical index EPOC is the general name of a family of operating systems for personal digital assistants (PDAs), produced first by Psion and now developed by a spin-off, Symbian. The name EPOC, claimed to stand for Electronic Piece Of Cheese, is deprecated, and the name Symbian OS is preferred. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.