This was the origin they used for Brainiac in Superman: The Animated Series. He was the central brain that managed and supervised all of Kryptonian society, until he turned against them.
I would actually like to see this version of Braniac done more in the comics and maybe live action movies. It's pretty damn interesting. I would twist it so that Brainiac was originally designed and built by Jor-El himself.
In STAS, he actually left Krypton to its death and that's pretty fricking cold to me.
BTW, I have a fanfic series recomendation to make to you, from one comic book fan to another.
It's a crossover series between marvel and DC Comics with Superman as the centerpiece and it's pretty well done, it's the best comic book fanfiction I've ever read, there's actually a pretty surprising twist regarding the circumstances about Krypton's death. Each chapter takes at least an hour to read.
Email me at firstname.lastname@example.org for more details.