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Technical Interviews: Excel with Ease by Anil Kumar Maini

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Block 8

Logic Devices

  1. Have you heard of combinational logic? Name any basic combinational logic device.
  2. Can you name two main features of such devices?
  3. How would you classify a ROM? Is it a combinational logic device or a sequential logic device?
  4. Why do we classify a ROM as a combinational device when it has memory characteristics?
  5. What is the most basic building block of combinational digital logic?
  6. Let us say we want a NOT function using any of the single 2-input logic gates. How many ways can you think of for doing this?
  7. What is the basic building block of a sequential logic device?
  8. Sequential logic circuits use only sequential logic devices just as combinational logic circuits use only combinational logic devices. What do you have to say ...

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