-
500
Abacus
A calculating tool that was in use in Europe, China and Russia, centuries before the adoption of the written Hindu–Arabic numeral system. -
The analytical machine
The Analytical Engine was a proposed mechanical general-purpose computer designed by English mathematician and computer pioneer Charles Babbage. -
Von Neumann architecture
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. -
ENIAC
The first electronic general-purpose computer. It was Turing-complete, digital, and could solve "a large class of numerical problems" through reprogramming. -
UNIVAC
The first commercial computer produced in the United States. -
High-level programming language
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. -
First electronic spreadsheet
https://en.wikipedia.org/wiki/Spreadsheet LANPAR was the first electronic spreadsheet on mainframe and time sharing computers. -
UNIX operating system
https://en.wikipedia.org/wiki/PCA family of multitasking, multi-user computer operating system. -
Altair
A microcomputer designed in 1975 based on the Intel 8080 CPU. -
CRAY-1
https://en.wikipedia.org/wiki/Cray-1 The Cray-1 was a supercomputer designed, manufactured and marketed by Cray Research. -
Apple
The company Steve Jobs started -
Macintosh
The Macintosh is a series of personal computers (PCs) designed, developed, and marketed by Apple Inc. -
Windows
A meta family of graphical operating systems developed, marketed, and sold by Microsoft. -
-
Holes in card
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.