The BCD output provides the time base and the time value in binary coded decimal (BCD) format.

A circuit is disclosed which allows BCD-coded or dual-coded operands to be added or subtracted with a single dual-adder.

The AFI consists of an integer with a value between 0 and 99 with an abstract syntax of two decimal digits" [3], that is, the AFI codes are binary coded decimal (BCD).

For example, a PC program communicates with another computer, one using extended binary coded decimal interchange code (EBCDIC) and the other using ASCII to represent the same characters.

In an embodiment, the resistive elements may be coupled with respective switches in a binary-coded decimal scheme.

An embodiment of an apparatus for providing a variable resistance may be configured to provide a resistance value according to a binary-coded decimal scheme.