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Abstract
Indian scripts are far more complex as compared to the Roman script. This complexity arises due to the large number of codes required to represent different unique character shapes and also due to the need to account for the large variations in the character width. All the LSI CRT controllers which are used in the CRT display for modern PCs have been designed for Roman script and are unsuited for the display of Indian scripts. Therefore mostly the bit mod graphics for the display of Indian script text on CRT screen has been used for acceptable quality for character display.
A novel method for code generation and display of Indian script text on a monochrome CRT is presented. Dedicated hardware using two commercially available CRT controllers in parallel along with a suitable control logic to take care of variable width of character, has been designed. End result is achieved with the help of suitable software to accept the key input, process it for actual code generation and to maintain the integrity of the display to avoid distortion due to variable width Indian script characters. This compromise between hardware and software makes it possible to enter Indian script text as in normal computer.