This is more a question for Why are we seeing more bot answers that link us, users, to viruses (I have gone into depth to backtrack then and finding these are very hard to find the origins).
Would there be a way to simply ban answers that use the links that we see now?

Which of these is most responsible for differences between the twentieth century to the twenty-first century?

Asequential circuit contains a register of four flip-flops. initially a binary number n (0000 ≤ n ≤ 1100) is stored in the flip-flops. after a single clock pulse is applied to the circuit, the register should contain n + 0011. in other words, the function of the sequential circuit is to add 3 to the contents of a 4-bit register. design and implement this circuit using j-k flip-flops.

Who introduced the concept of combining artificial and natural light in the studio