That's a tricky one. Not a lot of computer words in Klingon. My best attempt would be {De'ghom}. {De'} means information or data (the Klingon word for computer is {De'wI'}), and {ghom} means a group. So it literally means "group of data." I'm extrapolating a little, as the word for dictionary is {mu'ghom}, which means literally a "group of words."