Which of the following memory uses one transistor and one capacitor as basic memory unit

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Electrical Engineering XYZ MCQs

Which of the following memory uses one transistor and one capacitor as basic memory unit:

  1. DRAM
  2. SRAM
  3. Both of these
  4. None of these

Correct answer: 1. DRAM

Explanation:

  • DRAM stands for Dynamic Random Access Memory. It uses one transistor and one capacitor as the basic memory unit for each bit of data. The capacitor holds the electrical charge, representing the binary value (0 or 1), and the transistor is used to access and refresh the data.
  • SRAM, on the other hand, uses multiple transistors (typically six) to store each bit of data. SRAM is static, meaning it doesn’t require constant refreshing like DRAM, but it is more complex and requires more transistors per bit.

So, the correct choice is DRAM, as it uses one transistor and one capacitor as the basic memory unit.

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