![]() This type of error occurs only in parallel communication system, as data is transferred bit wise in single line, there is chance that single line to be noisy. Occurrence of single bit error is very rare in serial communication system. The change in one bit in the whole data sequence, is called “Single bit error”. There are generally 3 types of errors occur in data transmission from transmitter to receiver. In a data sequence, if 1 is changed to zero or 0 is changed to 1, it is called “Bit error”. In this case, the data error is likely to be changed in positions of 0 and 1. Generally the data transfer in digital systems will be in the form of ‘Bit – transfer’. Even one bit of change in data may affect the whole system’s performance. ![]() The data errors will cause loss of important / secured data. In this case, the input data is not same as the received output data. It may be affected by external noise or some other physical imperfections. The data can be corrupted during transmission (from source to receiver). Almost in all electronic devices, we find errors and we use error detection and correction techniques to get the exact or approximate output. The change in position of single bit also leads to catastrophic (major) error in data output. This sequence of bits is called as “Data stream”. ![]() In digital systems, the analog signals will change into digital sequence (in the form of bits). How the Hamming code actually corrects the errors?.
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