['Q1. What is Electronics?', 'Ans: The study and use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles.', 'Q2. What is meant by D-FF?', 'Ans: D-flip flop stands for Delay flip-flop, it delays input by one clock pulse.', 'Q3. ... ', 'Ans: Functions of BSS are as follows:', 'Q4. ... ', 'Ans:']