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** Description:** In the article the systems are considered numbering which find errors assuredly. The circuit technology decisions, adapted to combination of features of the binary quadded number and system of remaining classes system, are developed. simplified implementation of some arithmetic operations in the binary quadded number with the permanent amount of units system.

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Keywords:
** number system, binary quadded number system, summator, operation of addition, operation of deduction, operation of increase

Melnyk, O.H. (2011), “Skhemotekhnichni osnovy realizatsii systemy zalyshkovykh klasiv v dviikovo-chetvirkovii systemi chyslennia”,