2. a. Assuming that the decoder shown in the figure is the decoding circuit used to interface the 80486 processor with 4 chips memory of equal sizes. Answer the following: Points) 1. Write in the table shown both the Starting and Ending addresses for each chip. II. The size of each memory chip is ............... K Bytes and the last address bit is A... . III. Complete the memory interfacing for this circuit by completing the decoding circuit, adding the 4 memory chips shown to this decoding system. \( \mathrm{A} 21-\mathrm{A} 2 \)