Consider the following statements regarding Memory Organization:1.Memory capacity is expressed as number of words multiplied by number of bits per word in digital systems.2.Address lines determine number of memory locations while data lines determine word size.3.Increasing address lines reduces total memory capacity of the system.Which of the above statements is/are correct?

Correct Answer: C - 1 and 2 only

Quick Concept Explanation

A digital memory is specified by number of addressable words times bits per word. With n address lines, up to 2^n locations can be selected; the number of data lines sets the word width. Key relation: Capacity=(2^n words)×m bits/word.

Exam focus: Address lines choose locations; data lines carry word bits. Common trap: Do not confuse address width with data width.

Statement-wise Verification

• Statement 1 - Correct.
  Memory capacity is expressed as number of words multiplied by number of bits per word in digital systems.
  A digital memory is specified by number of addressable words times bits per word.
• Statement 2 - Correct.
  Address lines determine number of memory locations while data lines determine word size.
  With n address lines, up to 2^n locations can be selected; the number of data lines sets the word width.
• Statement 3 - Incorrect.
  Increasing address lines reduces total memory capacity of the system.
  More address lines increase the number of addressable locations as 2^n

Core Concept

A digital memory is specified by number of addressable words times bits per word. With n address lines, up to 2^n locations can be selected; the number of data lines sets the word width. Increasing address lines increases, not decreases, addressable capacity.

Formula / Key Relationship

Capacity=(2^n words)×m bits/word.

Why the Other Options Are Wrong

Option A is incorrect because it includes incorrect statement(s) 3 and omits correct statement(s) 2. Option B is incorrect because it includes incorrect statement(s) 3 and omits correct statement(s) 1. Option D is incorrect because it includes incorrect statement(s) 3.

Exam Shortcut / Approach

Address lines choose locations; data lines carry word bits.

Common Mistake

Do not confuse address width with data width.

Quick Revision

Address Lines Data Lines and Capacity is linked with Memory Organization, Memories and Digital Electronics. Address lines choose locations; data lines carry word bits.