Question

A memory has a total of 8 memory chips each with 12 address lines and data lines the size of memory system is

Answer 1

$\huge\bold\brown{Heya!!!}$

_________________________

$\huge\bold\pink{Answer}$

Ok. You have 8 chips 4 bits wide (the 4 data lines). In order to make a byte, you have to use two chips simultaneously. The ‘low order’ chip has the least significant four bits and the high order chip has the most significant bits.

So, you are using the chips in pairs.

With 8 chips, you have 4 byte pairs. Each byte pair is selected using Chip Enable lines. To decode four pairs of chips, you need 2 bits (or additional address lines).