FIFO $-$ First In First Out is one of the most popular logic circuits in digital systems. It works as a buffer memory, where the data which is written to first will be the data read out first as Figure $1.$ The implement logic is often based on ring buffer principle. Figure $1$: FIFO Let$$s study ring buffer, FIFO theory and it$$s applications. Then design and implement a FIFO circuit using Verilog HDL$.$ Write test benches to verify the implemented circuit. Bonus: Write more modules and plan scenarios to demo on board.