{"id":25506117,"date":"2022-01-29T00:16:07","date_gmt":"2022-01-28T18:46:07","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=25506117"},"modified":"2022-01-29T19:50:44","modified_gmt":"2022-01-29T14:20:44","slug":"history-of-computer-for-competitive-exams-pdf","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/","title":{"rendered":"History of Computer for Competitive Exams 2022 PDF"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69e7db4030524\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69e7db4030524\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#History_of_Computers_%E2%80%93_Introduction\" >History of Computers &#8211; Introduction\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Analog_Computers\" >Analog Computers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Digital_Computers\" >Digital Computers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Vacuum_Tubes_and_Digital_Electronic_Circuits\" >Vacuum Tubes and Digital Electronic Circuits<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Modern_Computers\" >Modern Computers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Stored-Program_Computer\" >Stored-Program Computer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Transistors\" >Transistors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Integrated_Circuits\" >Integrated Circuits<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Mobile_Computers\" >Mobile Computers<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Basic_Components\" >Basic Components<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Input_Unit\" >Input Unit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Central_Processing_Unit_or_CPU\" >Central Processing Unit or CPU<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Output_Unit\" >Output Unit<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#Computer_Hardware_and_Software\" >Computer Hardware and Software<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-weight: 400\">Who doesn&#8217;t know what a Computer is in this era right! But does everyone know who invented it? What is the history behind the invention? How did they develop the electronics we use today? Not many know the answers for these questions. Don&#8217;t worry, we are here with the answers for your questions. Did you know that long back people computing or doing any calculations were called a computer? Fascinating right. No wonder why humans are referred to as computers with brains. Government exams nowadays involve a General paper for Computer Awareness. It is very simple to crack this paper if you know how a computer works and of course if you know how to use it. If you don&#8217;t have an idea about the functioning of a computer, do not panic because you will, after completing this article.<\/span><span style=\"font-weight: 400\">Let&#8217;s dig deep!<\/span><\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.sng.link\/Bcofz\/od54\/6blp\" target=\"_blank\" rel=\"noopener\">Take Free Mock Test on Entri App Today!<\/a><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"History_of_Computers_%E2%80%93_Introduction\"><\/span><b>History of Computers &#8211; Introduction\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">A computer is an electronic device that manipulates information, or data and which has the ability to store, retrieve, and process data. Before learning all the complex terms, one must know about the history of computers. An analytical engine was designed by Charles Babbage, known as the father of computers. From then on the computers have evolved over the years. Currently we use the fifth generation of computers.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: center\"><b>GENERATION<\/b><\/p>\n<\/td>\n<td style=\"text-align: center\"><b>YEAR<\/b><\/td>\n<td>\n<p style=\"text-align: center\"><b>DETAILS<\/b><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">First Generation<\/span><\/td>\n<td><span style=\"font-weight: 400\">1946 to 1959<\/span><\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">machine language developed\u00a0\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">vacuum tubes for circuitry\u00a0\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">Magnetic drums-memory<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Second Generation<\/span><\/td>\n<td><span style=\"font-weight: 400\"> 1959-1965<\/span><\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">tubes to transistors.<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">Smaller IN SIZE,<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">Made energy efficient.<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">binary to assembly languages.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Third Generation<\/span><\/td>\n<td><span style=\"font-weight: 400\">1965 to 1971<\/span><\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">used Integrated Circuits (ICs) in place of transistors.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Fourth Generation<\/span><\/td>\n<td><span style=\"font-weight: 400\">1971 to 1980\u00a0<\/span><\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">invention of the microprocessors\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">computer languages\u00a0 C++,Java developed<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Fifth Generation<\/span><\/td>\n<td><span style=\"font-weight: 400\">Present<\/span><\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">1999 &#8211; World Wide Web<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">artificial intelligence\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;text-align: left\"><span style=\"font-weight: 400\">parallel processing and superconductors &#8211; the\u00a0 scope of future\u00a0<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400\">Most of us might have heard or learned Abacus. Abacus can be considered as\u00a0 the first digital computing device. The introduction of electric power in the 19th century led to the rise of electrical and hybrid electro-mechanical devices to carry out both digital and analog calculation. Lets learn the history in detail.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Analog_Computers\"><\/span><b>Analog Computers<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">first modern analog computer- tide-predicting machine -invented by Sir William Thomson in 1872.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">differential analyser to solve differential equations using wheel-and-disc mechanisms, conceptualized in 1876 by James Thomson.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">reached zenith with the differential analyzer by H. L. Hazen and Vannevar Bush at MIT in 1927.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">1950s, digital electronic computers brought\u00a0 the end for\u00a0 analog computing machines,\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Digital_Computers\"><\/span><b>Digital Computers<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">1938 &#8211; the United States Navy developed an electromechanical analog computer\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Torpedo Data Computer, used trigonometry to solve the problem of firing at a moving target.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">During World War II similar devices were developed\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">In 1941, Zuse Z3, the world&#8217;s first working electromechanical programmable, fully automatic digital computer.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Vacuum_Tubes_and_Digital_Electronic_Circuits\"><\/span><b>Vacuum Tubes and Digital Electronic Circuits<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Tommy Flowers, 1930 &#8211; electronics for the telephone exchange.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">telephone exchange network into an electronic data processing system, using vacuum tubes.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">In the US, John Vincent Atanasoff and Clifford E. Berry of Iowa State &#8211; Atanasoff\u2013Berry Computer (ABC) in 1942,the first &#8220;automatic electronic digital computer&#8221;.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Colossus, the first electronic digital programmable computing device, was used to break German ciphers during World War II.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">World&#8217;s first electronic digital programmable computer.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">ENIAC was the first electronic, Turing-complete device.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">lasted from 1943 to 1945.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Modern_Computers\"><\/span><b>Modern Computers<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The principle of the modern computer was proposed by Alan Turing in his seminal 1936<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Universal Computing machineStored programs<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Stored-Program_Computer\"><\/span><b>Stored-Program Computer<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The theoretical basis laid by Alan Turing in his 1936 paper. In 1945,\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The Manchester &#8211; world&#8217;s first stored-program computer. by Frederic C. Williams, Tom Kilburn and Geoff Tootill, 1948.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ferranti Mark 1, the world&#8217;s first commercially available general-purpose computer, February 1951.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">LEO I, April 1951, world&#8217;s first regular routine office computer job.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Transistors\"><\/span><b>Transistors<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Proposed by Julius Edgar Lilienfeld in 1925. John Bardeen and Walter Brattain built the first working transistor<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Point-contact transistor, in 1947<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Shockley&#8217;s bipolar junction transistor in 1948.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">1955 onwards, transistors replaced vacuum tubes in computer designs.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">First transistorised computer and the first in the world, was operational by 1953.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">MOSFET invented by Mohamed M. Atalla and Dawon Kahng\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The fundamental building block of digital electronics.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Integrated_Circuits\"><\/span><b>Integrated Circuits<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Kilby invented a hybrid integrated circuit.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Noyce&#8217;s invention &#8211; first true monolithic IC chip.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">first silicon-gate MOS IC with self-aligned gates &#8211; by Federico Faggin in 1968.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">led to the invention of the microprocessor<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">first single-chip microprocessor was the Intel 4004,by Federico Faggin\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Mobile_Computers\"><\/span><b>Mobile Computers<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">First laptops, such as the Grid Compass,\u00a0 incorporating batteries \u2013 in the 2000s.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">cellular mobile phones by the early 2000s.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">dominant computing device on the market<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">powered by System on a Chip (SoCs)<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">With the invention of solid-state electronics, transistors and integrated circuits, computers have become much smaller and affordable for consumers. Computers are present in every aspect of life today.<\/span><\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.app\/blog\/fundamentals-of-computer-study-notes-for-bank-exams\/\" target=\"_blank\" rel=\"noopener\">Learn Fundamentals of Computer \u2013 Study Notes for Bank Exams 2022<\/a><\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Basic_Components\"><\/span><b>Basic Components<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Apart from these elements, a computer system comprises three basic components or which are also called the building blocks of the system. They are :<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Input unit<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Central processing unit<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Output unit<\/span><\/li>\n<\/ol>\n<h4><span class=\"ez-toc-section\" id=\"Input_Unit\"><\/span><b>Input Unit<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The input components help to enter data and commands into a system.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Data can be any numbers, words, commands, etc.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Provide commands and data and the computer\u00a0 uses\u00a0 CPU to process it and give the output.<\/span><\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Central_Processing_Unit_or_CPU\"><\/span><b>Central Processing Unit or CPU<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400\">The computer needs to process the information provided by the input and create output. THis is done with the help of a component called the central processing unit. The CPU further uses these three elements:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Memory Unit &#8211; Memory unit stores the data provided by the input component until the CPU starts processing the data. It also helps in transmitting the stored data to the CPU.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Arithmetic and Logic Unit &#8211; the part performs arithmetic operations like mathematical calculations and logical functions.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Control Unit &#8211; the control unit coordinates tasks between all components of a computer system. It does the job of collecting data from input and sending it to processing units and also transmits processed data to output units.<\/span><\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Output_Unit\"><\/span><b>Output Unit<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400\">The final component is the output unit. After the data is processed, it is then converted into a format which people can recognise and understand. Output unit displays it to the user. Now if you think you will know which are the output units. They will be your monitors, screens, printers, speakers, etc.\u00a0<\/span><\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.app\/blog\/important-computer-terminologies-for-competitive-exams-pdf\/\" target=\"_blank\" rel=\"noopener\">Important Computer Terminologies for Competitive Exams PDF<\/a><\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Computer_Hardware_and_Software\"><\/span><b>Computer Hardware and Software<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">All the internal parts of a computer including the CPU, Monitor, Graphic Card, keyboard mouse, etc which creates the physical structure of the computer is called its hardware. The hardware is signalled or directed by the software to run or execute any command. Software whereas is a set of instructions, datas, program or command provided to the hardware to execute it.<\/span><\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.app\/blog\/computer-hardware-and-software-questions-and-answers\/\" target=\"_blank\" rel=\"noopener\">Computer Hardware and Software Questions and Answers<\/a><\/strong><\/p>\n<p><span style=\"font-weight: 400\">In this world of evolving technologies, usage of electronics has become a necessity whether it be a child, teen, adult or senior citizen. The world of technology has changed the perspective of the world. Therefore it is very necessary to learn and grow with the innovations. A general knowledge about computers is a necessity for a human today. Let it be to make a call, to draft an email or to apply and attend exams.\u00a0<\/span><\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.sng.link\/Bcofz\/od54\/6blp\" target=\"_blank\" rel=\"noopener\">Download Entry App to Ace Your Bank Exams!<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Who doesn&#8217;t know what a Computer is in this era right! But does everyone know who invented it? What is the history behind the invention? How did they develop the electronics we use today? Not many know the answers for these questions. Don&#8217;t worry, we are here with the answers for your questions. Did you [&hellip;]<\/p>\n","protected":false},"author":87,"featured_media":25506202,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[802,246,854],"tags":[],"class_list":["post-25506117","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-banking","category-government-exam"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>History of Computer for Competitive Exams 2022 PDF - Entri Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"History of Computer for Competitive Exams 2022 PDF - Entri Blog\" \/>\n<meta property=\"og:description\" content=\"Who doesn&#8217;t know what a Computer is in this era right! But does everyone know who invented it? What is the history behind the invention? How did they develop the electronics we use today? Not many know the answers for these questions. Don&#8217;t worry, we are here with the answers for your questions. Did you [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/\" \/>\n<meta property=\"og:site_name\" content=\"Entri Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/entri.me\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-01-28T18:46:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-01-29T14:20:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"820\" \/>\n\t<meta property=\"og:image:height\" content=\"615\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Anaswara S. Mohan\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@entri_app\" \/>\n<meta name=\"twitter:site\" content=\"@entri_app\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Anaswara S. Mohan\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/\"},\"author\":{\"name\":\"Anaswara S. Mohan\",\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/person\/2b11ca31a82c2511e488f49f7b0923d6\"},\"headline\":\"History of Computer for Competitive Exams 2022 PDF\",\"datePublished\":\"2022-01-28T18:46:07+00:00\",\"dateModified\":\"2022-01-29T14:20:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/\"},\"wordCount\":1211,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/entri.app\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png\",\"articleSection\":[\"Articles\",\"Banking\",\"Other Government Exam\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/\",\"url\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/\",\"name\":\"History of Computer for Competitive Exams 2022 PDF - Entri Blog\",\"isPartOf\":{\"@id\":\"https:\/\/entri.app\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png\",\"datePublished\":\"2022-01-28T18:46:07+00:00\",\"dateModified\":\"2022-01-29T14:20:44+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage\",\"url\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png\",\"contentUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png\",\"width\":820,\"height\":615,\"caption\":\"History of Computer for Competitive Exams 2022 PDF\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/entri.app\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Banking\",\"item\":\"https:\/\/entri.app\/blog\/category\/banking\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"History of Computer for Competitive Exams 2022 PDF\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/entri.app\/blog\/#website\",\"url\":\"https:\/\/entri.app\/blog\/\",\"name\":\"Entri Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/entri.app\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/entri.app\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/entri.app\/blog\/#organization\",\"name\":\"Entri App\",\"url\":\"https:\/\/entri.app\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png\",\"contentUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png\",\"width\":989,\"height\":446,\"caption\":\"Entri App\"},\"image\":{\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/entri.me\/\",\"https:\/\/x.com\/entri_app\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/person\/2b11ca31a82c2511e488f49f7b0923d6\",\"name\":\"Anaswara S. Mohan\",\"description\":\"Anaswara S.Mohan is a true Keralite with an eye for creativity and detail. Although a Civil Engineering student, the world of Creativity and Words always intrigued her. She is passionate about helping people understand contents through her easily digestable material.\",\"url\":\"https:\/\/entri.app\/blog\/author\/mohan\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"History of Computer for Competitive Exams 2022 PDF - Entri Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/","og_locale":"en_US","og_type":"article","og_title":"History of Computer for Competitive Exams 2022 PDF - Entri Blog","og_description":"Who doesn&#8217;t know what a Computer is in this era right! But does everyone know who invented it? What is the history behind the invention? How did they develop the electronics we use today? Not many know the answers for these questions. Don&#8217;t worry, we are here with the answers for your questions. Did you [&hellip;]","og_url":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/","og_site_name":"Entri Blog","article_publisher":"https:\/\/www.facebook.com\/entri.me\/","article_published_time":"2022-01-28T18:46:07+00:00","article_modified_time":"2022-01-29T14:20:44+00:00","og_image":[{"width":820,"height":615,"url":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png","type":"image\/png"}],"author":"Anaswara S. Mohan","twitter_card":"summary_large_image","twitter_creator":"@entri_app","twitter_site":"@entri_app","twitter_misc":{"Written by":"Anaswara S. Mohan","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#article","isPartOf":{"@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/"},"author":{"name":"Anaswara S. Mohan","@id":"https:\/\/entri.app\/blog\/#\/schema\/person\/2b11ca31a82c2511e488f49f7b0923d6"},"headline":"History of Computer for Competitive Exams 2022 PDF","datePublished":"2022-01-28T18:46:07+00:00","dateModified":"2022-01-29T14:20:44+00:00","mainEntityOfPage":{"@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/"},"wordCount":1211,"commentCount":0,"publisher":{"@id":"https:\/\/entri.app\/blog\/#organization"},"image":{"@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage"},"thumbnailUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png","articleSection":["Articles","Banking","Other Government Exam"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/","url":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/","name":"History of Computer for Competitive Exams 2022 PDF - Entri Blog","isPartOf":{"@id":"https:\/\/entri.app\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage"},"image":{"@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage"},"thumbnailUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png","datePublished":"2022-01-28T18:46:07+00:00","dateModified":"2022-01-29T14:20:44+00:00","breadcrumb":{"@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#primaryimage","url":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png","contentUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/History-of-Computer-for-Competitive-Exams-2022-PDF-1.png","width":820,"height":615,"caption":"History of Computer for Competitive Exams 2022 PDF"},{"@type":"BreadcrumbList","@id":"https:\/\/entri.app\/blog\/history-of-computer-for-competitive-exams-pdf\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/entri.app\/blog\/"},{"@type":"ListItem","position":2,"name":"Banking","item":"https:\/\/entri.app\/blog\/category\/banking\/"},{"@type":"ListItem","position":3,"name":"History of Computer for Competitive Exams 2022 PDF"}]},{"@type":"WebSite","@id":"https:\/\/entri.app\/blog\/#website","url":"https:\/\/entri.app\/blog\/","name":"Entri Blog","description":"","publisher":{"@id":"https:\/\/entri.app\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/entri.app\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/entri.app\/blog\/#organization","name":"Entri App","url":"https:\/\/entri.app\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png","contentUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png","width":989,"height":446,"caption":"Entri App"},"image":{"@id":"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/entri.me\/","https:\/\/x.com\/entri_app"]},{"@type":"Person","@id":"https:\/\/entri.app\/blog\/#\/schema\/person\/2b11ca31a82c2511e488f49f7b0923d6","name":"Anaswara S. Mohan","description":"Anaswara S.Mohan is a true Keralite with an eye for creativity and detail. Although a Civil Engineering student, the world of Creativity and Words always intrigued her. She is passionate about helping people understand contents through her easily digestable material.","url":"https:\/\/entri.app\/blog\/author\/mohan\/"}]}},"_links":{"self":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts\/25506117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/users\/87"}],"replies":[{"embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/comments?post=25506117"}],"version-history":[{"count":4,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts\/25506117\/revisions"}],"predecessor-version":[{"id":25506125,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts\/25506117\/revisions\/25506125"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/media\/25506202"}],"wp:attachment":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/media?parent=25506117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/categories?post=25506117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/tags?post=25506117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}