--- title: Will Quantum Computing Replace Your Laptop? | daily.dev description: An accessible introduction to quantum computing aimed at software engineers, covering the difference between quantum mechanics and quantum computing, qubits,... canonical: https://daily.dev/posts/will-quantum-computing-replace-your-laptop--okjwhtsol twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Will Quantum Computing Replace Your Laptop? | daily.dev og:description: An accessible introduction to quantum computing aimed at software engineers, covering the difference between quantum mechanics and quantum computing, qubits,... og:url: https://daily.dev/posts/will-quantum-computing-replace-your-laptop--okjwhtsol og:image: https://api.daily.dev/og/posts/oKjwhtSoL.png og:image:alt: Will Quantum Computing Replace Your Laptop? og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Will Quantum Computing Replace Your Laptop? **[Towards Dev](https://daily.dev/sources/towardsdev)** · 11 min read · 0 upvotes · 0 comments ## Summary An accessible introduction to quantum computing aimed at software engineers, covering the difference between quantum mechanics and quantum computing, qubits, quantum gates, superposition, entanglement, interference, and measurement. It explains Grover's algorithm as an example of quantum advantage, lists application areas like cryptography, drug discovery, and optimization, discusses why quantum computers remain impractical today (cooling, noise, cost, fault tolerance), and surveys current players (IBM Quantum, Google Willow, D-Wave). The author speculates on future coexistence of classical and quantum computing and the eventual need for post-quantum cryptography. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What is Grover's algorithm and how much faster is it than a classical search? Grover's algorithm is a quantum search algorithm that finds a target among N unsorted possibilities in roughly O(√N) oracle queries, compared to O(N) for a classical brute-force search. It works by using superposition to represent many possibilities at once, an oracle to mark the correct answer, and amplitude amplification to boost the probability that measurement returns that answer. _Comparing classical and quantum approaches to search? daily.dev surfaces explainers like this on quantum algorithms._ ### What is the difference between a qubit and a classical bit? A classical bit holds one of two definite states, 0 or 1, while a qubit is a quantum mechanical system that can exist in a superposition of both states simultaneously. Quantum computers manipulate qubits with quantum gates using physical operations like microwave or laser pulses, then measure them to collapse the result into a classical 0 or 1 outcome. _Curious how quantum hardware differs from classical chips? daily.dev collects deep dives on qubits and quantum gates._ ### What real quantum computing hardware is publicly accessible today? IBM offers cloud access to real quantum computers with systems containing more than 100 qubits through its IBM Quantum platform. Google's Willow chip demonstrated major progress in quantum error correction, and D-Wave pioneered commercial quantum-annealing systems, with NASA's Ames Research Center having used D-Wave's 2X system for optimization research. _Tracking which vendors offer real quantum hardware access? daily.dev rounds up updates from IBM, Google, and D-Wave._ --- Tags: [#google](https://daily.dev/tags/google), [#quantum-computing](https://daily.dev/tags/quantum-computing), [#algorithms](https://daily.dev/tags/algorithms), [#cryptography](https://daily.dev/tags/cryptography), [#ibm](https://daily.dev/tags/ibm) [View this post on daily.dev](https://daily.dev/posts/will-quantum-computing-replace-your-laptop--okjwhtsol) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Will Quantum Computing Replace Your Laptop?","url":"https://daily.dev/posts/will-quantum-computing-replace-your-laptop--okjwhtsol","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/will-quantum-computing-replace-your-laptop--okjwhtsol"},"datePublished":"2026-09-02T20:58:49.048Z","dateModified":"2026-09-03T01:07:30.261Z","description":"An accessible introduction to quantum computing aimed at software engineers, covering the difference between quantum mechanics and quantum computing, qubits,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9f2acc8cc06c7ffa4aac59984d0a0d42?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9f2acc8cc06c7ffa4aac59984d0a0d42?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Towards Dev","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Towards Dev","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/2c710db2750a4a70835862534cb7c9d4","url":"https://daily.dev/sources/towardsdev"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/will-quantum-computing-replace-your-laptop--okjwhtsol","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"google,quantum-computing,algorithms,cryptography,ibm","timeRequired":"PT11M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Towards Dev","item":"https://daily.dev/sources/towardsdev"},{"@type":"ListItem","position":3,"name":"Will Quantum Computing Replace Your Laptop?"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/will-quantum-computing-replace-your-laptop--okjwhtsol#faq","mainEntity":[{"@type":"Question","name":"What is Grover's algorithm and how much faster is it than a classical search?","acceptedAnswer":{"@type":"Answer","text":"Grover's algorithm is a quantum search algorithm that finds a target among N unsorted possibilities in roughly O(√N) oracle queries, compared to O(N) for a classical brute-force search. 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