Logo This Acornsoft Logo package consists of the Logo language contained on ROM Cartridge and two manuals of which one is a beginners' tutorial course and the other a reference manual for those familiar with programming concepts. Additionally there is a cassette containing various utilities and extensions, and a reference card. Acornsoft Logo is a full implementation of the Logo language which is widely used in schools. It contains all the usual turtle graphics and list processing facilities, along with many other extra features. These include multiple screen turtles, drivers for most of the common mechanical turtles and extensive sound and graphics primitives which take full advantage of the Acorn Electron's capabilities. This ROM Cartridge is designed for use with the Electron Plus 1 and is fully compatible with the Plus 3 Disc Expansion Unit.