The Cross Compiler is an excellent and valuable program development tool. It provides to the user a low level compiled language that allows character (byte), integer (8086 word) and pointer (8086 one word address) manipulation. It also allows recursion, has modern flow and a rich set of operators.The Communication Program which include file transfer utility allows the student to download or upload their C program to a PC. It allows use of the Modem. The file transferring can be done using XON/XOFF or XMODEM. It also supports INS 8250 UART chip, plus 16450 high speed device found in hardware such as IBM AT Serial/Parallel Adapter.