Microsoft has been working on a physical programming language (PPL) for children who are visually impaired. Dubbed Code Jumper, it allows children to learn coding by connecting physical blocks together. Each block is around the size of a softball, and brightly coloured. There are different sizes for different commands, and children can connect them together to build a program. Microsoft has been working closely with the American Printing House for the Blind (APH) to tweak its system, and it's now handing its work off to the APH so students can start to gain access to it.