Muppet Learning Keys is a Muppet computer toy developed in 1984 by Christopher Cerf and Bill Prady with Koala Technologies and Sunburst Software. It was available for both the Commodore 64 and the Apple computer. The hardware/software combination was meant to teach children ages three and up how to type and start using a computer. The keyboard came with a software disk and had several Muppet and non-Muppet related programs released that were compatible with it. These include Muppetville, Muppet Slate, and Muppet Word Book, and the Sesame Street title Astro-Grover.