The Computer That Ate My Brother

The Computer That Ate My Brother is a children's novel by Dean Marney. Published in 1985, it is about a boy named Harry Smith who receives a computer on his twelfth birthday, only to find it has a mind of its own, flashing lights to get attention, switching itself on and off at will, and communicating using text (similar to the WOPR).

That was okay when Harry was thinking about dinner.It wasn't okay when he was thinking about his brother Roger,the worst possible slime ever to walk the face of the Earth. At the end, his brother returns, having been transformed by the experience of being warped to another dimension.