NIELIT 2016 DEC Scientist B (IT) - Section B: 37

Question

How many address lines are needed to address each memory location in a $2048\times4$ memory chip?

• A. $10$
• B. $11$
• C. $8$
• D. $12$

Comments

Option B is correct.

Answer 1

the give memory chip is 2048 *4 means 2048 words ,each word consists of  4 bits . so we have to address 2048 locations i.e 2* 1024 = 2*2 ^ 10 =2^11 locations which corresponds to 11 address lines. Hence the option (B) is correct.

Answer 2

2^m * n

m=Addresing line

n=Data line

m , n will be 11 and 4