A CRT Terminal design has been worked out using a 96 character (Standard ASCII) O/E/N make keyboard and a Video Monitor, around Texas Instruments TMS 9900 microprocessor 6 and TMS 9918A Video Display Processor (VDP) 7. A modified keybord layout scheme for Telugu and Devanagari scripts is described, very similar to the standard typewriters currently in use. The present CRT Terminal design caters for selecting either of English, Telugu or Hindi scripts. For generating the English script, the VDP is used in its text mode, while for the other two scripts in the Graphics II mode. Due to the limitation of the VDP with 192 rows of 256 pixels, the number of displayed characters is very less(i.e.24 lines of 40 characters in English Text). A standard RS-232 C interface has been provided in the design for interfacing with the host computers.
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