What is the error detection and correction

Error detection and correction communication channel have a ring of characteristics of channel like Optical Fibre in telecommunication network have TV error rates so that trains mission errors are a errors but other channel especially wireless link and having local low have error with that are order of magnitude larger for these link transmission are they cannot be avoid it at a reasonable expense in term of perform... definition both model matter in practice and any friends said of saving the error come in words has worth advantages and disadvantages have a isolated a single bit errors on the advantage side computer data are always send in blocks of BITS suppose that the block size was 1000 and the rate was 0.001 per bit if error where Independence most block would contain and error... error correcting quotes all of these course add required and see two information that is send a frame consist of database and Re donate BITS in a block code the checkbits are computer slowly as a function of the database with which they are associated as thought the bits where looked up in a large table to find their corresponding check bits... error detecting course error correcting quotes are widely used on wireless links which are notoriously and error phone when compared to Optical Fibre without air correcting code it would be to get anything thought however our fibre or high quality copper The Other rate in much lower so error detection and returns mission is usually more efficient there for dealing with the okrational error...