Digital signals

Digital signal are converted into analog signal using ____________

Two digital signals A and B are represented by two binary numbers 110011 and 100110 respectively. These two signals A and B are applied as inputs of (i) OR (ii) AND (iii) NOR and (iv) NAND gates. Find the binary numbers to represent the outputs in each of the four cases.

Digitals signals (i) do not provide a continous set of values (ii) represent values are discrete steps (iii) can utilize binary system and (iv) can utilize decimal as well as binary systems . Which of the above statements are true ?

A digital signal

A digital signal-

A digital signal-

Explain analogue signals and digital signal.