Four light-emitting diodes (leds) are designated as led0, led1, led2, and led3. these leds
are illuminated by applying a voltage to them corresponding to "logic 1", and darkened by applying a
voltage to them corresponding to logic 0. a computer generates a 4-bit number a = a3a2a1a0. design
and sketch a digital logic circuit that will illuminate led0 when a=0100, led1 when a=0101, led2
when a=0110, and led3 when a=0111. for all other values of a, the leds should be dark. you
may use logic gates and/or decoders for your circuit. clearly label all leds, signal lines, and decoders.
try to minimize the number of components.