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A calculating tool that was in use in Europe, China and Russia, centuries before the adoption of the written Hindu–Arabic numeral system.
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The Analytical Engine was a proposed mechanical general-purpose computer designed by English mathematician and computer pioneer Charles Babbage.
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Also known as the von Neumann model, a processing unit containing an arithmetic logic unit and processor registers, a control unit containing an instruction register and program counter, memory to store both data and instructions, external mass storage, and input and output mechanisms.
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The first electronic general-purpose computer. It was Turing-complete, digital, and could solve "a large class of numerical problems" through reprogramming.
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The first commercial computer produced in the United States.
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https://en.wikipedia.org/wiki/High-level_programming_languageA high-level programming language is a programming language with strong abstraction from the details of the computer.
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https://en.wikipedia.org/wiki/Spreadsheet LANPAR was the first electronic spreadsheet on mainframe and time sharing computers.
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https://en.wikipedia.org/wiki/PCA family of multitasking, multi-user computer operating system.
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A microcomputer designed in 1975 based on the Intel 8080 CPU.
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https://en.wikipedia.org/wiki/Cray-1 The Cray-1 was a supercomputer designed, manufactured and marketed by Cray Research.
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The company Steve Jobs started
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The Macintosh is a series of personal computers (PCs) designed, developed, and marketed by Apple Inc.
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A meta family of graphical operating systems developed, marketed, and sold by Microsoft.
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https://en.wikipedia.org/wiki/PCPersonal Computer
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A punched card, punch card, IBM card, or Hollerith card is a piece of stiff paper that contained either commands for controlling automated machinery or data for data processing applications.
