$2.$ 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.

$\backslash (\backslash$mathrm$\{$A$\}21-\backslash$mathrm$\{$A$\}2\backslash )$