6. The system according to claim 1 wherein said interface means includes: (a) means, operable during said first mode, for modulating the digital address information for said selected text generated by said processing unit to convert it to analogue information; (b) means for providing said analogue information to said recorder means.
6. The system according to claim 1 wherein said interface means includes: (a) means, operable during said first mode, for modulating the digital address information for said selected text generated by said processing unit to convert it to analogue information; (b) means for providing said analogue information to said recorder means. 7. The system according to claim 6 wherein said interface means includes: (a) means, operable during said second mode, for demodulating the analogue address information played back by said recorder means to convert it back to digital address information; (b) means for providing the demodulated digital address information to said processing unit to permit retrieval and display of the selected text.