This is the third in a series of computer science videos is about the fundamental principles of Dynamic Random Access Memory, DRAM, and the essential concepts of DRAM operation. This video covers the role of the row address decoder and the workings of generic binary decoders. It also explains how a binary decoder can be built using combinational logic. In the videos that follow, you will find out more about the combinational logic used to construct a multiplexer and a demultiplexer. You’ll also see how DRAM banks are organised, so that it is possible to store bytes and words rather than just single bits.