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All computers today be it for commercial, industria or personal application depends on binary logic where all numbers and string are represented by 1s and 0s irrespective of how large or complex a computer is it depends on transistor and gate to make use of these binary logic each gate is either a open 1 or a closed 0 this is basically what all our daily super and mini computers are design for it's created to give a YES or a NO prompt response.

Google and IBM are leading technology competing on making quantum computing became reality for the world to experience supremacy of quantum computing.

with limitations of traditional computers using transistors and logic gate response of 1 and 0 quantum computers works simultaneously in both states, with integration of artificial intelligence which can solve high complex problem within a limited time.

In quantum computing, the smallest unit of data is not the bit, but the qubit, based on something like the spin of a magnetic field.
While being difficult or impossible to fully understand, superposition means that the amount of data that can be stored grows exponentially as the number of qubits increases. A group of 20 qubits can hold more than a million values at once. However, quantum computing also involves further concepts, particularly quantum entanglement. This means that, unlike traditional computers that can only process data sequentially, quantum computers can process it all simultaneously.

With blockchain technology being a secure hack proof security system to securely store users private key these has pose questions to the crypto users if the introduction of quantum computing would be a threat to crypto security as quantum computing involves using quantum phenomenon like superposition to perform computer tasks which can perform calculations base on probability.

Do crypto holders need to worry?

Ethereum co-founder Vitalik Buterin tweeted about quantum computing in October 2019.

https://twitter.com/VitalikButerin/status/1187179705025196034?s=19

One potential way that a quantum computer can harm the security of cryptocurrency private keys is through replacing them directly, without needing to steal them from anyone’s wallet.
Andersen Cheng, CEO of Post Quantum, , a company providing information solutions against current and future threats.

What future does crypto technology holds for crypto enthusiast would quantum computers be a threat or a means of boosting blockchain security?

Publication source https://www.power-and-beyond.com/quantum-computers-how-do-they-work-and-what-might-we-expect-of-them-a-940315/

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