{"id":2791,"date":"2012-08-15T15:46:33","date_gmt":"2012-08-15T15:46:33","guid":{"rendered":"https:\/\/www.techopedia.com\/definition\/non-volatile-memory\/"},"modified":"2024-09-27T16:28:50","modified_gmt":"2024-09-27T16:28:50","slug":"non-volatile-memory","status":"publish","type":"definition","link":"https:\/\/www.techopedia.com\/definition\/2793\/non-volatile-memory-nvm","title":{"rendered":"Non-Volatile Memory (NVM)"},"content":{"rendered":"<h2><span id=\"what_is_non-volatile_memory_nvm\">What is Non-Volatile Memory (NVM)?<\/span><\/h2>\n<p>Non-volatile memory (NVM) is a type of <a href=\"https:\/\/www.techopedia.com\/definition\/4607\/computer\">computer<\/a> storage that sustains itself even after the machine has been powered down. A type of <a href=\"https:\/\/www.techopedia.com\/definition\/15261\/non-volatile-storage-nvs\">non-volatile storage<\/a>, NVM is typically used to store a computer&#8217;s boot code, the built-in instructions that tell it how to switch on and which programs to execute first.<\/p>\n<p>One of its earliest forms was <a href=\"https:\/\/www.techopedia.com\/definition\/2804\/read-only-memory-rom\">read-only memory<\/a> (ROM), where data was written directly onto a circuit during the production process or programmed into it using specialized <a href=\"https:\/\/www.techopedia.com\/definition\/2185\/device\">devices<\/a>. Today, NVM frequently takes the form of <a href=\"https:\/\/www.techopedia.com\/definition\/24481\/flash-memory\">flash memory<\/a>, which can be written onto the computer&#8217;s storage disc during ordinary operations.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory-300x151.jpg\" alt=\"What is Non-Volatile Memory\" width=\"1200\" height=\"604\" class=\"aligncenter wp-image-322319\" srcset=\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory-300x151.jpg 300w, https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory-1024x516.jpg 1024w, https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory-768x387.jpg 768w, https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory-1536x773.jpg 1536w, https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory-1200x604.jpg 1200w, https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory-1980x997.jpg 1980w, https:\/\/www.techopedia.com\/wp-content\/uploads\/2012\/08\/What-is-Non-Volatile-Memory.jpg 2048w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<div class=\"su-note\"  style=\"border-color:#dddddd;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#f7f7f7;border-color:#ffffff;color:#333333;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\">\n<h2><span id=\"key_takeaways\">Key Takeaways<\/span><\/h2>\n<ul>\n<li>Non-volatile memory (NVM) allows data to be held on a computer even after the machine has been switched off.<\/li>\n<li>It&#8217;s a vital part of modern computing, enabling <a href=\"https:\/\/www.techopedia.com\/definition\/807\/data\">data<\/a> to be retained safely without having to power computer devices constantly.<\/li>\n<li>It&#8217;s typically used to store information that the computer and end users will access repeatedly: boot instructions, operating systems, applications, and user files.<\/li>\n<li>There are two main types of NVM: electrically addressed systems and mechanically addressed systems.<\/li>\n<li>NVM is slower than volatile memory like RAM, but innovations like <a href=\"https:\/\/www.techopedia.com\/definition\/31817\/non-volatile-memory-express-nvme\">non-volatile memory express<\/a> (NVMe) aim to address that limitation.<\/li>\n<\/ul>\n<\/div><\/div>\n<div>\n    <section class=\"toc-sticky w-100 bg-white \">\n        <div class=\"toc-sticky__container container\">\n            <div class=\"toc-sticky__open d-flex align-items-end\" data-bs-toggle=\"collapse\"\n                 aria-controls=\"multiCollapse1\"\n                 data-bs-target=\"#multiCollapse1\">\n                <button\n                        class=\"btn btn-primary collapse-action-btn p-1 rounded-circle\"\n                        type=\"button\"\n                >\n                    <i class=\"icon-chevron-up\"><\/i>\n                <\/button>\n                <span id=\"toc-current-title\" class=\"d-flex align-items-center\">\n                    Table of Contents\n                <\/span>\n                <span class=\"toc-main-title-permanent\">Table of Contents<\/span>\n            <\/div>\n            <div\n                    class=\"collapse my-3\"\n                    id=\"multiCollapse1\"\n            >\n                <ol class=\"StepProgress\">\n                                                                        <li class=\"StepProgress-item current\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"what_is_non-volatile_memory_nvm\"\n                               onclick=handleScrollToTitle(\"what_is_non-volatile_memory_nvm\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">What is Non-Volatile Memory (NVM)?<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"key_takeaways\"\n                               onclick=handleScrollToTitle(\"key_takeaways\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">Key Takeaways<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"how_non-volatile_memory_works\"\n                               onclick=handleScrollToTitle(\"how_non-volatile_memory_works\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">How Non-Volatile Memory Works<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"types_of_non-volatile_memory\"\n                               onclick=handleScrollToTitle(\"types_of_non-volatile_memory\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">Types of Non-Volatile Memory<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"non-volatile_memory_vs_volatile_memory\"\n                               onclick=handleScrollToTitle(\"non-volatile_memory_vs_volatile_memory\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">Non-Volatile Memory vs. Volatile Memory<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"nvm_vs_nvme\"\n                               onclick=handleScrollToTitle(\"nvm_vs_nvme\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">NVM vs. NVMe<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"non-volatile_memory_applications\"\n                               onclick=handleScrollToTitle(\"non-volatile_memory_applications\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">Non-Volatile Memory Applications<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"nvm_examples\"\n                               onclick=handleScrollToTitle(\"nvm_examples\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">NVM Examples<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"non-volatile_memory_pros_and_cons\"\n                               onclick=handleScrollToTitle(\"non-volatile_memory_pros_and_cons\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">Non-Volatile Memory Pros and Cons<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"the_bottom_line\"\n                               onclick=handleScrollToTitle(\"the_bottom_line\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">The Bottom Line<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"faqs\"\n                               onclick=handleScrollToTitle(\"faqs\")\n                               class=\"StepProgress-item__link\" data-level=\"2\">FAQs<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                    <\/ol>\n                <div class=\"toc-sticky__container__disperse\"><\/div>\n                <div class=\"toc-sticky__btn-top justify-content-center\">\n                    <button class=\"btn btn-link d-flex align-items-center\" onclick={btnTop()}><p>Show Full Guide<\/p><img decoding=\"async\"\n                                src=\"\/wp-content\/plugins\/table-of-contents\/assets\/images\/arrow-up-circle.svg\"\n                                alt=\"arrow-up-circle\">\n                    <\/button>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n    <div class=\"toc-sticky-list\">\n        <div class=\"toc-sticky__container container\">\n            <div class=\"toc-sticky__open d-flex align-items-end\" data-bs-toggle=\"collapse\" aria-controls=\"multiCollapse2\" data-bs-target=\"#multiCollapse2\">\n                <button class=\"btn btn-primary collapse-action-btn p-1 rounded-circle\"\n                        type=\"button\">\n                    <i class=\"icon-chevron-up up\"><\/i>\n                <\/button>\n                <span id=\"toc-current-title\" class=\"d-flex align-items-center\">\n                    Table of Contents\n                <\/span>\n            <\/div>\n            <div  class=\"collapse my-3\" id=\"multiCollapse2\">\n                <ol class=\"StepProgress\">\n                    \t\t\t\t\t \t\t\t\t\t                                                     <li class=\"StepProgress-item current \">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"what_is_non-volatile_memory_nvm\"\n                                   onclick=handleScrollToTitle(\"what_is_non-volatile_memory_nvm\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">What is Non-Volatile Memory (NVM)?<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t                                                     <li class=\"StepProgress-item \">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"key_takeaways\"\n                                   onclick=handleScrollToTitle(\"key_takeaways\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">Key Takeaways<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t                                                     <li class=\"StepProgress-item \">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"how_non-volatile_memory_works\"\n                                   onclick=handleScrollToTitle(\"how_non-volatile_memory_works\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">How Non-Volatile Memory Works<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t\n\t\t\t\t\t\t <span class=\"show_moretoc\">Show Full Guide<\/span>\n\t\t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"types_of_non-volatile_memory\"\n                                   onclick=handleScrollToTitle(\"types_of_non-volatile_memory\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">Types of Non-Volatile Memory<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"non-volatile_memory_vs_volatile_memory\"\n                                   onclick=handleScrollToTitle(\"non-volatile_memory_vs_volatile_memory\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">Non-Volatile Memory vs. Volatile Memory<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"nvm_vs_nvme\"\n                                   onclick=handleScrollToTitle(\"nvm_vs_nvme\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">NVM vs. NVMe<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"non-volatile_memory_applications\"\n                                   onclick=handleScrollToTitle(\"non-volatile_memory_applications\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">Non-Volatile Memory Applications<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"nvm_examples\"\n                                   onclick=handleScrollToTitle(\"nvm_examples\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">NVM Examples<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"non-volatile_memory_pros_and_cons\"\n                                   onclick=handleScrollToTitle(\"non-volatile_memory_pros_and_cons\")\n                                   class=\"StepProgress-item__link\"\n                                   data-level=\"2\">Non-Volatile Memory Pros and Cons<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                   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const el = document.getElementById(id);\n        const headerHeightDifference = window.innerWidth < 992 ? -30 : -15;\n        window.scrollTo({\n            top: el.offsetTop - 60 - headerHeightDifference - 10,\n        });\n    }\n<\/script>\n\n<h2><span id=\"how_non-volatile_memory_works\">How Non-Volatile Memory Works<\/span><\/h2>\n<p>Non-volatile memory uses technologies that allow it to retain data without a constant power supply. In computing lexicon, NVM is a <a href=\"https:\/\/www.techopedia.com\/definition\/23955\/byte\">byte-addressable<\/a>, meaning it can provide data access at the individual byte level. By preserving data even during system crashes and power outages, NVM ensures that vital files and information are held intact, reducing the risk of corruption or loss.<\/p>\n<p>NVM works in tandem with a computer&#8217;s <a href=\"https:\/\/www.techopedia.com\/definition\/9966\/volatile-storage\">volatile memory<\/a>, such as <a href=\"https:\/\/www.techopedia.com\/definition\/24491\/random-access-memory-ram\">random-access memory<\/a> (RAM), which provides fast temporary storage for data that needs to be accessed quickly. Non-volatile memory is normally used to store applications, files, and documents.<\/p>\n<h2><span id=\"types_of_non-volatile_memory\">Types of Non-Volatile Memory<\/span><\/h2>\n<p>There are a variety of non-volatile memory technologies and devices. They differ in the way they transfer and retrieve data and the speed at which data transfer occurs between an application, <a href=\"https:\/\/www.techopedia.com\/definition\/2874\/microprocessor\">microprocessor<\/a>, or device. NVMs also differ in cost, storage capacity, write-able lifespan, and <a href=\"https:\/\/www.techopedia.com\/definition\/2228\/latency\">latency<\/a>.<\/p>\n<p>There are <strong>two main types of NVM<\/strong>:<\/p>\n<div class=\"su-accordion su-u-trim\">\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span><strong>Electrically addressed systems<\/strong><\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\"> These systems use electrical mechanisms to write and read data. They include flash memory and read-only memory. <\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span><strong>Mechanically addressed systems<\/strong><\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\"> Mechanically addressed systems write and read data to magnetic storage media through a physical storage head. They include <a href=\"https:\/\/www.techopedia.com\/definition\/5288\/hard-disk-drive\">hard disk drives<\/a> (HDDs) and <a href=\"https:\/\/www.techopedia.com\/definition\/8213\/magnetic-tape-drive\">tape drives<\/a>. <\/div><\/div>\n<\/div>\n<h2><span id=\"non-volatile_memory_vs_volatile_memory\">Non-Volatile Memory vs. Volatile Memory<\/span><\/h2>\n<p>Volatile memory requires a constant power supply in order to retain stored data. Common examples of volatile memory include <a href=\"https:\/\/www.techopedia.com\/definition\/2814\/static-random-access-memory-sram\">static read-only memory<\/a> (SRAM) and <a href=\"https:\/\/www.techopedia.com\/definition\/2770\/dynamic-random-access-memory-dram\">dynamic read-only memory<\/a> (DRAM). To overcome their power limitations, computer vendors sometimes add battery power to volatile memory devices to store temporarily in the event that power is suddenly cut off.<\/p>\n<p>In general, volatile memory loses data when the machine is shut down but is faster than non-volatile memory. NVM doesn&#8217;t need a battery or any other type of power to retain data but operates more slowly than volatile memory.<\/p>\n<h2><span id=\"nvm_vs_nvme\">NVM vs. NVMe<\/span><\/h2>\n<p>There are two broad categories of non-volatile memory: non-volatile memory and non-volatile memory express (NVMe).<\/p>\n<p><strong>NVM<\/strong> is the most common type and first emerged in the 1940s in the form of physically punched tape and cards. <strong>NVMe<\/strong> is a modern host controller interface and storage protocol that came to market in 2010.<\/p>\n<p>Run by a consortium of storage technology vendors called the NVM Host Controller Interface Work Group, NVMe is designed to speed up NME by increasing the data transfer rate between host systems and SSDs. NVMe aims for interoperability across different NVM formats, including 3D XPoint and <a href=\"https:\/\/www.techopedia.com\/definition\/1099\/nand-flash-memory\">NAND flash<\/a>.<\/p>\n<p>NVMe&#8217;s main advantage over other forms of NVM is its simpler execution. It needs less than half the number of <a href=\"https:\/\/www.techopedia.com\/definition\/2851\/central-processing-unit-cpu\">central processing unit<\/a> (CPU) instructions than other NVMs in common use. NVMe also offers lower latency and the potential for lower power consumption.<\/p>\n<h2><span id=\"non-volatile_memory_applications\">Non-Volatile Memory Applications<\/span><\/h2>\n<p>Non-volatile memory is commonly used to store data that end users access repeatedly, like operating systems, <a href=\"https:\/\/www.techopedia.com\/definition\/4356\/software\">software<\/a> applications, and documents. Non-volatile memory is also used in archival storage as it enables data to be held for long periods without electricity.<\/p>\n<p><a href=\"https:\/\/www.techopedia.com\/definition\/2977\/smartphone\">Smartphones<\/a> and <a href=\"https:\/\/www.techopedia.com\/definition\/2353\/tablet\">tablets<\/a> also rely on flash NVM to store <a href=\"https:\/\/www.techopedia.com\/definition\/23586\/mobile-device\">mobile device<\/a> operating systems, popular apps for <a href=\"https:\/\/www.techopedia.com\/vpn\/best-vpn-for-streaming\">secure media streaming<\/a>, photos, videos, and music files.<\/p>\n<h2><span id=\"nvm_examples\">NVM Examples<\/span><\/h2>\n<p><a href=\"https:\/\/www.techopedia.com\/definition\/5288\/hard-disk-drive\">Hard disks<\/a> (HDDs) and <a href=\"https:\/\/www.techopedia.com\/definition\/2296\/solid-state-drive-ssd\">solid-state drives<\/a> (SSDs) are two of the most widely used types of non-volatile memory.<\/p>\n<p>Other examples include:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.techopedia.com\/definition\/2771\/electrically-erasable-programmable-read-only-memory-eeprom\">Erasable programmable ROM<\/a> (EPROM).<\/li>\n<li><a href=\"https:\/\/www.techopedia.com\/definition\/1669\/ferroelectric-random-access-memory-fram\">Ferroelectric RAM<\/a> (FRAM).<\/li>\n<li>Other magnetic storage devices like magnetic tape and floppy disks.<\/li>\n<li><a href=\"https:\/\/www.techopedia.com\/definition\/2620\/optical-disk\">Optical disks<\/a>.<\/li>\n<li>Punched tape and cards (an early form of computer storage).<\/li>\n<\/ul>\n<h2><span id=\"non-volatile_memory_pros_and_cons\">Non-Volatile Memory Pros and Cons<\/span><\/h2>\n<div class=\"su-row\"><div class=\"su-column su-column-size-1-2\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<strong>Pros<\/strong><br \/>\n<div class=\"su-list\" style=\"margin-left:0px\">\n<ul>\n<li><i class=\"sui sui-check-circle\" style=\"color:#3CB371\"><\/i> Data persistence, which is vital for modern computing as it allows operating systems, software applications, and user data to be stored safely even when no power supply is present<\/li>\n<li><i class=\"sui sui-check-circle\" style=\"color:#3CB371\"><\/i> Higher storage capacity<\/li>\n<li><i class=\"sui sui-check-circle\" style=\"color:#3CB371\"><\/i> NVM is less expensive per unit than volatile memory<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n<div class=\"su-column su-column-size-1-2 pros_icons_\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<strong>Cons<\/strong><br \/>\n<div class=\"su-list\" style=\"margin-left:0px\">\n<ul>\n<li><i class=\"sui sui-remove\" style=\"color:#e31f28\"><\/i> Typically executes read and write operations at a slower pace than volatile memory<\/li>\n<li><i class=\"sui sui-remove\" style=\"color:#e31f28\"><\/i> It is arguably less secure than volatile memory as anything stored in volatile memory disappears after a machine is turned off<\/li>\n<li><i class=\"sui sui-remove\" style=\"color:#e31f28\"><\/i> Some types of NVM like flash memory have a limited write cycle and may need to be replaced more frequently<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div>\n<h2><span id=\"the_bottom_line\">The Bottom Line<\/span><\/h2>\n<p>Memory is one of the most basic components in <a href=\"https:\/\/www.techopedia.com\/definition\/6597\/computing\">computing<\/a>, and today&#8217;s systems need two different types to operate quickly and efficiently: volatile memory and non volatile memory.<\/p>\n<p>Volatile memory delivers data quickly for short-term use, while non-volatile memory, by definition, stores data pervasively so it can be reused again and again \u2013 even if the power is switched off.<\/p>\n<p>What type of memory is non-volatile? Hard drives and solid-state drives are forms of NVM used to store boot instructions, operating systems, software applications, and user files.<\/p>\n<h2><span id=\"faqs\">FAQs<\/span><\/h2>\n<div class=\"man_faq_sec\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"><section class=\"ms_faq ms_card \" ><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">What is non-volatile memory in simple terms?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Non-volatile memory is memory that sustains itself without a power source, meaning data is retained even after a computer is turned off.<\/p>\r\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \" ><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Is non-volatile memory good?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">It&#8217;s vital for modern computing, allowing operations systems, applications, user files, and firmware to be stored indefinitely.<\/p>\r\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \" ><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Why is ROM called non-volatile memory?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">ROM (or read-only memory) is a form of NVM.<\/p>\r\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \" ><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">What are the three examples of non-volatile memory?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Flash drives, hard discs, and solid-state drives are all examples of NVM.<\/p>\r\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \" ><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Is an SD card non-volatile memory?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\"><a href=\"https:\/\/www.techopedia.com\/definition\/2808\/secure-digital-card-sd-card\">SD<\/a> (secure digital) cards are a form of solid state that uses <a href=\"https:\/\/www.techopedia.com\/definition\/2366\/integrated-circuit-ic\">integrated circuit<\/a> (IC) assemblies to retain data without a power source.<\/p>\r\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \" ><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">What is the difference between volatile and non-volatile memory?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Volatile memory is used by software to access information that is only required quickly and temporarily. Non-volatile memory is used to store data permanently.<\/p>\r\n                <\/div><\/div><\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>What is Non-Volatile Memory (NVM)? Non-volatile memory (NVM) is a type of computer storage that sustains itself even after the machine has been powered down. A type of non-volatile storage, NVM is typically used to store a computer&#8217;s boot code, the built-in instructions that tell it how to switch on and which programs to execute [&hellip;]<\/p>\n","protected":false},"author":286786,"featured_media":322315,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"no","_lmt_disable":"","om_disable_all_campaigns":false,"footnotes":""},"definitioncat":[223],"class_list":["post-2791","definition","type-definition","status-publish","format-standard","has-post-thumbnail","hentry","definitioncat-storage"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.8 (Yoast SEO v23.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Non-Volatile Memory? 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