{"id":45036,"date":"2022-11-25T19:19:37","date_gmt":"2022-11-25T19:19:37","guid":{"rendered":"https:\/\/www.arimetrics.com\/glosario-digital\/hardware"},"modified":"2026-09-19T19:58:36","modified_gmt":"2026-09-19T19:58:36","slug":"hardware","status":"publish","type":"encyclopedia","link":"https:\/\/www.arimetrics.com\/en\/digital-glossary\/hardware","title":{"rendered":"Hardware"},"content":{"rendered":"<p><img decoding=\"async\" class=\"boxpad alignright wp-image-45084 size-full\" src=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2022\/12\/hardware.jpg\" alt=\"Hardware\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2022\/12\/hardware.jpg 300w, https:\/\/www.arimetrics.com\/wp-content\/uploads\/2022\/12\/hardware-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><strong>Definition:<\/strong><\/p>\n<p><strong>Hardware<\/strong> is the collection of physical components that form a computer system or enable it to interact with its surroundings. It includes internal parts, such as the motherboard, processor, memory and storage drives, as well as peripherals such as a keyboard, monitor or printer.<\/p>\n<p><strong>These components receive, process, store, transmit or present data.<\/strong> Hardware provides the physical foundation for <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/software\">software<\/a>, which contains the programs and instructions executed by the system. The two depend on each other: an application needs compatible physical resources, while hardware needs software or firmware to perform most of its functions.<\/p>\n<p>The term is not restricted to personal computers. <strong>It also describes the physical parts of servers, phones, routers, consoles, sensors, connected vehicles and <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/iot-internet-of-things\">Internet of Things<\/a> devices.<\/strong><\/p>\n\n<h2>Hardware components and functions<\/h2>\n<p>The motherboard connects many internal components and allows them to exchange data. <strong>Each element performs a function within the system<\/strong>, although one device may serve several purposes:<\/p>\n<ul>\n<li><strong>Processing:<\/strong> The CPU executes instructions and coordinates operations; a GPU or other accelerator specialises in graphics, parallel computing or artificial intelligence workloads.<\/li>\n<li><strong>Main memory:<\/strong> RAM temporarily holds the data and programs in use so that the processor can access them quickly.<\/li>\n<li><strong>Storage:<\/strong> SSDs, hard drives and other media retain the system, applications and files when the machine is turned off.<\/li>\n<li><strong>Input:<\/strong> Keyboards, mice, cameras, microphones and sensors introduce data or actions into the system.<\/li>\n<li><strong>Output:<\/strong> Monitors, speakers, printers and other devices present the results of processing.<\/li>\n<li><strong>Communication:<\/strong> Network interfaces, antennas, modems and ports connect the machine to other devices or networks.<\/li>\n<li><strong>Physical support:<\/strong> The motherboard, power supply, cooling system and chassis distribute power, connect parts and maintain suitable operating conditions.<\/li>\n<\/ul>\n<p>Classification depends on context. <strong>A component may be internal in one machine and external in another<\/strong>, while some peripherals combine input and output, as a touchscreen does.<\/p>\n<h2>Evolution of hardware<\/h2>\n<p>The design of Charles Babbage&#8217;s Difference Engine, presented in 1822, is an early example of mechanical computing. Electromechanical relays and vacuum tubes were used later. <strong>The adoption of transistors, integrated circuits and microprocessors made computers smaller, faster and more efficient.<\/strong><\/p>\n<p>Subsequent development has placed processing, memory, storage, communications and sensors into progressively smaller spaces. <strong>Desktop and laptop computers now coexist with data centres, smartphones, <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/wearable\">wearable<\/a> devices and embedded systems<\/strong> that perform specific tasks inside machines, vehicles or connected products.<\/p>\n<h2>Hardware and software<\/h2>\n<p>Hardware and software are different parts of a computer system, but they work together. <strong>The main distinction is that hardware is the physical foundation, whereas software consists of instructions and data.<\/strong><\/p>\n<p>The relationship can be compared in several ways:<\/p>\n<ul>\n<li><strong>Nature:<\/strong> Hardware has a physical form; software is stored as code and data on physical media.<\/li>\n<li><strong>Modification:<\/strong> Adding memory or replacing a drive requires work on components, while a program can be installed, updated or removed without necessarily changing the parts.<\/li>\n<li><strong>Compatibility:<\/strong> A program needs a compatible architecture, memory, storage and devices; hardware relies on operating systems, drivers or firmware that can use it.<\/li>\n<li><strong>Lifecycle:<\/strong> A component can wear out, become damaged or no longer provide enough capacity. Software does not suffer physical wear, but it can become obsolete, unsupported or incompatible.<\/li>\n<\/ul>\n<p>Firmware sits close to the boundary: <strong>it is software stored in a device to control functions near the hardware.<\/strong> Being integrated into a physical component does not make it hardware.<\/p>\n<h2>Hardware management<\/h2>\n<p>Hardware selection starts with the workload and its requirements for compatibility, capacity, power use and availability. <strong>A higher specification does not guarantee a better result by itself<\/strong> when another component, the software or the network becomes the limiting factor.<\/p>\n<p>Maintenance includes cleaning, ventilation, diagnostics, replacement of parts and secure firmware updates when appropriate. <strong>Recording devices, configurations, warranties and renewal dates helps identify faults and plan capacity.<\/strong> Professional environments also need to control physical access and protect storage media.<\/p>\n<p>When equipment is retired, securely erasing or destroying its data prevents information from remaining accessible. <strong>Reusing, repairing and recycling components through suitable channels reduces electronic waste<\/strong> and makes better use of their service life.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Definition: Hardware is the collection of physical components that form a computer system or enable it to interact with its surroundings. It includes internal parts, such as the motherboard, processor, memory and storage drives, as well as peripherals such as a keyboard, monitor or printer. These components receive, process, store, transmit or present data. Hardware [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"template":"","encyclopedia-tag":[1281],"class_list":["post-45036","encyclopedia","type-encyclopedia","status-publish","hentry","encyclopedia-tag-connected-hardware"],"_links":{"self":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia\/45036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"author":[{"embeddable":true,"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/users\/6"}],"wp:attachment":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/media?parent=45036"}],"wp:term":[{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=45036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}