Question

Many ram chips of size 512 x 8 bit are needed to design a memory of 1 m x 32 bit ?

Answer 1

1M = 1024k size of new ram = (1024k *8) no of chips required = (1024*8)/(256*1) = 32

Answer 2

Number of ram chips needed = 8192 chips

GIVEN:-

Ram chip's capacity = 515 × 8 bits

Memory capacity = 1m × 32 bits

TO FIND:- No. of chips needed.

SOLUTION:-

• As we know, 1m = 1024 × 1024 bits

As we know,

$no. \: of \: chip \: needed = \frac{memory \: capacity}{ram \: chips \: capacity}$

ACCORDING TO QUESTION,

• Memory capacity = 1m × 32 bits = 1024 × 1024 × 32 bits

By substituting values in the formula

Number of chips needed =

$= \frac{1024 \times 1024 \times 32}{515 \times 8} \\ = \frac{1,048,576 \times 32}{4096} \\ =\frac{33,554,432 }{4096} \\ = 8192$

Hence, Number of ram chips needed = 8192 chips

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