Sed (streams editor) isn't really a true text editor or text processor. Instead, it is used to filter text, i.e., it takes text input and performs some operation (or set of operations) on it and outputs the modified text. Sed is typically used for extracting part of a file using pattern matching or substituting multiple occurances of a string within a file.
SED is a property of SED respective authors, vendors and developers. You can download SED for your hardware. If you want to use SED for other purpose, Please contact the authors, vendors and developers of SED.
