Using the Reed-Muller Codes, the encoder and decoder system has been designed and tested in this paper. The error correcting capability of this code is [J/2} or less and the error correcting procedure can be implemented easily by using simple logic circuitry. The encoding and decoding circuits are obtained by the cyclic property and for the O15, 11) Reed-Muller code majority-logic decoding is taken. The performance is measured in error probability and weight destribution. The encoder and decoder system has been designed, implemented and interfaced with the microcomputer by using the 8255 chip. Experimental results show that the system has single error-correcting capability and total execution time for a data is about 70usec. When the probability of channel error is $10^{-6}$~$10^{-4}$ the system using the (15, 11) Reed-Muller code works very good.