The Computer Ate My Brother
Direct from the 1980s, we have a rogue computer that evidently eats kids. Of course the computer has a few “issues” and can evidently read your mind. Harry, our protagonist, is irritated by a brother. Harry thinks he is awful and wham, the computer takes him away. This theme of evil computers that are out of control and capable of becoming sentient is all over pop culture at this time. Tron, 2001: A Space Odyssey , War Games, Neuromancer, and a bunch of others I can’t remember off the top of my head have plots that incorporate computer power out of the hands of humans.
Is it a weeder? In a public library, I would say yes based on that cover. Over the years, I have had kids ask me stuff that makes me feel old. Floppy discs, typewriters, desk telephones, and other items are virtually non recognizable by kids born into the world of smart phones and computers. I feel too old. Now get off my lawn.