Question

The basic unit of quantum information is
1. BYTE
2. GIGABIT
3. QUBIT
4. BIT

Answer 1

Correct Answer - Option 3 : QUBIT

The correct answer is QUBIT.

• QUBIT
  • It is the basic unit of quantum information.
  • It is made using physical systems, such as the spin of an electron or the orientation of a photon.
  • They can be represented in 0, 1, and mixed states of 0 and 1 where it is both 1 and 0 at the same time.
  • In general, n qubits can take the values of 2ⁿ.
• Eight bits is enough for a classical computer to represent any number between 0 and 255.
• But eight qubits is enough for a quantum computer to represent every number between 0 and 255 at the same time.
• In situations where there are a large number of possible combinations, quantum computers can consider them simultaneously.

• A byte is a unit of digital information that most commonly consists of eight bits.
• A bit may be used to represent a maximum of two values at a time, whereas A byte may store up to 256 different values.
• 1 gigabit = 10⁹ bits = 1000000000 bits.