designing memory chips. chip. ROM chips. ROM chips. ROM chips. ROM chips. a) Explain why tri-state buffers are used in b) Show internal organization of a 16x4 ROM c) Design a 4x4 memory system by using 4x2 d) Design a 8x2 memory system by using 4x2 e) Design a 8x8 memory system by using 4x2 f) Design a 32x8 memory system by using 16x4