 A version containing routines for disk management known as Disk Color BASIC was also developed for these machines.Updates to the language include routines such as Play (for use with the sound facility), Draw (for vector graphics and other things with lines) and other additions as well as undocumented functions such as those inherited originally from the original Color Basic to work with the semi-graphics modes.A fifth programming language for this series of computers is the Basic interpreter which runs on the Radio Shack/Tandy MC-10, a small computer marketed beginning in 1984.