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Difference between bit and qbit

Difference between bit and qbit.                                       GeniusJarvis.blogspot.com.                                                                                     

हैलो दोस्तों Hindi Sahayta में आपका स्वागत है। आज हम आपको बताने जा रहे है Bit Kya Hai यदि आप भी जानना चाहते है की 32 Bit 64 Bit Kya Hai तो आप बिल्कुल सही पोस्ट पढ़ रहे है। साथ ही आज की पोस्ट के द्वारा आप जानेंगे की 32 Bit Or 64 Bit Me Antar क्या है।
Byte Kya Hai भी आज आप इस पोस्ट के माध्यम से जानेंगे। हम आपको यह बिल्कुल सरल भाषा में समझाएँगे। आशा करते है की आपको हमारी सभी पोस्ट पसंद आ रही होगी। और इसी तरह आप आगे भी हमारे ब्लॉग पर आने वाली सारी पोस्ट पसंद करते रहे।
कंप्यूटर और मोबाइल का हम सभी लोग प्रयोग करते है। लेकिन उसकी कुछ टेक्निकल टर्म्स होती है जिसके बारे में सभी को पता नहीं होता है। क्या आप जानते है की 32 Bit 64 Bit Kya Hai, यह किस तरह से हमारे डिवाइस में कार्य करते है। आपके इन सभी सवालों के जवाब आज की पोस्ट आपको मिलेंगे।
अगर आप कंप्यूटर का इस्तेमाल करते है तो आपको 32 Bit और 64 Bit जो की कंप्यूटर के बहुत ही Basic Terms है इसके बारे में पता होना चाहिए। आपने नया कंप्यूटर या लैपटॉप ख़रीदा है और आपको अपने कंप्यूटर में ऑपरेटिंग सिस्टम इंस्टाल करना है तो आपको 32 Bit और 64 Bit के बारे में पता होना चाहिए।
तो आईये जानते है अब Bit Kya Hai In Hindi अगर आपको इसकी जानकारी प्राप्त करना है तो यह पोस्ट What Is Bit In Hindi शुरू से अंत तक ज़रुर पढ़े। तभी आप इसकी पूरी जानकारी प्राप्त कर पाएँगे।

Bit Kya Hai

Bit डाटा की सबसे छोटी इकाई होती है। जिसका इस्तेमाल कंप्यूटर में किया जाता है। यह 2 तरह से ही जानकारी को Save कर सकती है जैसे – On Or Off (0 Or 1) यहाँ पर 2 Value हो सकती है पहली है 0 (Zero) और दूसरी है One (1) यह कंप्यूटर की Basic Unit होती है।
यह पोस्ट भी जरूर पढ़े: Computer Driver Kya Hai? Computer Me Driver Kaise Dale – जानिए Windows Driver Update Kaise Kare बेहद सरल भाषा में!
एक Bit का सिर्फ एक ही मान हो सकता है। कंप्यूटर बाइनरी कोड्स की ही भाषा समझते है। इन बाइनरी कोड्स को ही Bit कहते है। कंप्यूटर की सभी बड़ी से बड़ी और छोटी क्रियाएं बिट्स के द्वारा ही संपन्न होती है। Bit को English के Small Letter ‘b’ से दर्शाया जाता है।                                                       
Qbit.                
The Bloch sphere is a representation of a qubit, the fundamental building block of quantum computers.
Quantum computing is the use of quantum-mechanical phenomena such as superposition and entanglement to perform computation. A quantum computer is used to perform such computation, which can be implemented theoretically or physically.[1]:I-5
The field of quantum computing is actually a sub-field of quantum information science, which includes quantum cryptography and quantum communication. Quantum computing was started in the early 1980s when Richard Feynman and Yuri Maninexpressed the idea that a quantum computer had the potential to simulate things that a classical computer could not.[2][3] In 1994, Peter Shor published an algorithm that is able to efficiently solve some problems that are used in asymmetric cryptography that are considered hard for classical computers.[4]
There are currently two main approaches to physically implementing a quantum computer: analog and digital. Analog approaches are further divided into quantum simulationquantum annealing, and adiabatic quantum computation. Digital quantum computers use quantum logic gates to do computation. Both approaches use quantum bits or qubits.[1]:2-13
Qubits are fundamental to quantum computing and are somewhat analogous to bits in a classical computer. Qubits can be in a 1 or 0 quantum state. But they can also be in a superposition of the 1 and 0 states. However, when qubits are measured the result is always either a 0 or a 1; the probabilities of the two outcomes depends on the quantum state they were in.
Today's physical quantum computers are very noisy and quantum error correction is a burgeoning field of research. Unfortunately existing hardware is so noisy that "fault-tolerant quantum computing [is] still a rather distant dream".[5] As of April 2019, no large scalable quantum hardware has been demonstrated, nor have commercially useful algorithms been published for today's small, noisy quantum computers.[1] There is an increasing amount of investment in quantum computing by governments, established companies, and start-ups.[6] Both applications of near-term intermediate-scale device[5] and the demonstration of quantum supremacy[7]are actively pursued in academic and industrial research.

BasicsEdit

A classical computer has a memory made up of bits, where each bit is represented by either a one or a zero. A quantum computer, on the other hand, maintains a sequence of qubits, which can represent a one, a zero, or any quantum superposition of those two qubit states;[8]:13–16 a pair of qubits can be in any quantum superposition of 4 states,[8]:16 and three qubits in any superposition of 8 states. In general, a quantum computer with n qubits can be in any superposition of up to 2^{n}different states.[8]:17 (This compares to a normal computer that can only be in one of these 2^{n} states at any one time).
A quantum computer operates on its qubits using quantum gates and measurement(which also alters the observed state). An algorithm is composed of a fixed sequence of quantum logic gates and a problem is encoded by setting the initial values of the qubits, similar to how a classical computer works. The calculation usually ends with a measurement, collapsing the system of qubits into one of the 2^{n} eigenstates, where each qubit is zero or one, decomposing into a classical state. The outcome can, therefore, be at most n classical bits of information. If the algorithm did not end with a measurement, the result is an unobserved quantum state. (Such unobserved states may be sent to other computers as part of distributed quantum algorithms.)
Quantum algorithms are often probabilistic, in that they provide the correct solution only with a certain known probability.[9] The term non-deterministic computing must not be used in that case to mean probabilistic (computing) because the term non-deterministic has a different meaning in computer science.
An example of an implementation of qubits of a quantum computer could start with the use of particles with two spin states: "down" and "up" (typically written |{\downarrow }\rangle  and |{\uparrow }\rangle , or |0{\rangle } and |1{\rangle }). This is true because any such system can be mapped onto an effective spin-1/2system.

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