Duduli

The addition of two binary numbers is performed in exactly the same manner as the addition of decimal numbers. In fact, binary addition is simpler, because we have only two digits(0 & 1). When adding binary numbers, the following rules apply            0+0=1            1+0=1            1+1=10=0+ carry of 1 into next position            1+1+1=11=1+ carry of 1 into next position

Signals are nothing but continuous time- varying voltage or current. Such signals are called continuous or Analog signals. ★ It is convenient to use binary numbers to represent such signals. A binary number has only two digits ‘0’ (say 0V) & ‘1’ (say 5V). ★ In digital electronics we use only these two levels of voltage, two values of the input & output voltage are permissible Such signals are called digital signals.