There may have been number of storage sites popping up back in the days but didn't Dropbox provide something new and necessary technology to the PC? As in, don'

There may have been number of storage sites popping up back in the days but didn't Dropbox provide something new and necessary technology to the PC? As in, don't worry about backing up your files? I don't recall even Box dot net - who was much in the tech news - provide such features.