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Question 103

A memory unit is of size 256K × 16. How many address lines and data lines does it need?

  1. A18 address lines, 16 data lines
  2. B18 address lines, 8 data lines
  3. C8 address lines, 16 data lines
  4. D16 address lines, 18 data lines
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Correct answer: (A) 18 address lines, 16 data lines

Explanation

256K = 2^18, so 18 address lines; word size 16 bits, so 16 data lines.

From DSSSB TGT Computer Science Full Mock Test 1

This is question 103 of DSSSB TGT Computer Science Full Mock Test 1. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.