It's not a computer (although there's a computer in it) but I thought I'd mention "Robot in a Can" ( https://robotinacan.com/ https://robotinacan.com/ ). They

It's not a computer (although there's a computer in it) but I thought I'd mention "Robot in a Can" ( https://robotinacan.com/ https://robotinacan.com/ ). They have a kit and online classes, and partner with some educational orgs like Centre d’art de Préville in Montréal. The kit is Open Source ( https://github.com/Robot-In-A-Can https://github.com/Robot-In-A-Can ) and the robot can be programmed via wifi using a Scratch-based UI. > Turn the kit on and you can start programming in less than a minute without any difficult driver installation or software setup. The main component of the kit is our custom WiFi microcontroller board. It can be programmed and controlled by a phone, tablet or laptop. Using our easy-to-use, open-source, browser-based, drag-and-drop coding system. https://robotinacan.com/products/robot-in-a-can https://robotinacan.com/products/robot-in-a-can