lower case and graphics for the Elekterminal

lower case and graphics for the elekterminal elektor january 1981 - 1-41 Anyone who has built the Elekterminal will know that although the keyboard produces the complete set of 128 ASCII characters, the lower case letters are not decoded by the VDU board. This in no way undermines the performance and operation of the Elekterminal, es- pecially as most BASIC computers will only accept upper case characters anyway! However, for certain appli- cations, the addition of lower case letters and graphic symbols can be very advantageous. lowr ease and graphics for -the elektorminal previous character generator ROM, IC11 (although not physically!). The remain- ing new components (N27, N28 and IC22) are included to eliminate any timing problems that may affect the right most column of the character font. There are a number of ways in which the actual modification can be carried out, but as the majority of connections to be made are in the region around IC11 the preferred method is to use a...