$1.$ What is sign magnitude, $1\text{'}$s and $2\text{'}$s complement representation of integer.

$2.$ Explain BCD$,$ ASCII and unicode.

$3.$ What is even and odd parity?

$4.$ Write de morgans and distributive laws for boolean algebra.

$5.$ What is universal logic gate? Show that NAND gate is universal gate.

$6.$ Differentiate between XOR and XNOR gate.

Explain $4$ variable k$-$map simplification with examples.

$7.$ Discuss significance of sum of product and product of sums notation of boolean function.

$8.$ Design full adder circuit.What is binary adder? Design $4$ bit binary adder.

$9.$ What is multiplexer? Design $4$:$1$ MUX.

$10.$ What is demultiplexer? Design $1$:$4$ DEMUX.

$11.$ Compare decoder and encoder circuit with examples solve all question.