A binary clock might use leds to express binary values A more efficient encoding would use all 16 values Sometimes, special bit patterns are.
The standard defines five basic formats that are named for their numeric base and the number of bits used in their interchange encoding However, in ram or cpu registers, numbers are represented only as sequences of bits, without extra symbols Typically 0 (zero) and 1 (one).
In computing, signed number representations are required to encode negative numbers in binary number systems In mathematics, negative numbers in any base are represented by prefixing them with a minus sign (−)
