Digital logic is the study of the logic gates and memory elements. In this course, I’ve learn the types of gates and their function respectively for instance, basic gates such as OR, NOT and AND gates while for the universal gates such as NAND, NOR, XOR and NXOR gates. Universal gates is the combination of one or more type of basic gates. The use of universal gates can reduce the cost as we have to stock only one type of gates and can be reuse to implement other gates.
Besides, for the memory elements, there are two type of temporary storage device such as latch and flip-flop. There are three types of latches for example S-R, Gated S-R and Gated D latch. However, there are four types of flip-flop such as S-R, D, J-K, T flip-flop. The different between latch and flip-flop is the method used for changing their state. Meanwhile, their similarity is both of them are bi-stable.