Erratum

[5] According to the Chicago Manual of Style, "Errata, lists of errors and their corrections, may take the form of loose, inserted sheets or bound-in pages.

It is a device to be used only in extreme cases where errors severe enough to cause misunderstanding are detected too late to correct in the normal way but before the finished book is distributed.

(Tipping and inserting must be done by hand, thus adding considerably to the cost of the book.

)"[6] Design errors and mistakes in a microprocessor's hardwired logic may also be documented and described as errata.

Similarly, design errors in peripheral devices, such as disk controllers and video display units, can result in abnormal operation under certain conditions.