First present the existing limitations of the Sinclair Interface2 Cartridge hardware implementation. Second, document the problems and challenges presented by it, when trying to use it for something more than a Read Only Memory (ROM) with 16KB Third, document the side band communication implemented in order to transfer information to a smarter Cartridge, that implements a paged memory interface. Fourth, Demonstrate a working sample/prototype (either live, using a real Spectrum or in video format). Check video links.