ISRO Electrical Engineering (EE) 2017 - Question 67

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The ROM consists of

  • A. A decoder followed by an encoder
  • B. An encoder followed by a decoder
  • C. A multiplexer followed by a decoder
  • D. A multivibrator

Answer: A. A decoder followed by an encoder

Explanation: A Read-Only Memory (ROM) architecture consists of an input decoder (generating all 2^n minterms) followed by a programmable/fixed OR encoder array.

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