evolution of computers
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Since ancient times, humans have worked to develop tools to help with tasks like counting and calculations. The abacus, invented over 4,000 years ago in China, was one of the earliest counting devices, allowing easier addition and subtraction. Later inventions included Pascal's calculator in 1642, the first mechanical calculator; Leibniz's calculator in 1673, which could also multiply and find square roots; and Jacquard's loom in 1801, which used punch cards to automate patterns in textile production. These early electromechanical devices paved the way for computers.
evolution of computers
- 2. Since man is born with intelligence, he thought of ways that would make things easy for him. One of the problems encountered by man was counting the things he had. Because of this, he invented something that could help him count fast and easy.
- 3. The Abacus About 4,000 years ago, the Chinese invented the ABACUS. It is an adding tool that can help can you add & subtract numbers by moving beads back & forth on rods. The abacus was one of the earliest counting devise invented to help man solve his counting problems. EARLY COMPUTING DEVICES
- 4. THE ABACUS
- 5. In 1642, Blaise Pascal, a French mathematician, invented the Pascal calculator. This device, also known as the Pascaline, operated 8 movable dials, which could add numbers up to 8 figures long. It was used to perform simple arithmetic calculations. This device was limited to addition & subtraction only. THE PASCALINE CALCULATOR
- 7. In 1673, Gottfried Leibntiz, a German mathematician & philosopher, enchanced the Pascaline by creating a device that could also multiply. It can even find the square root of number. The device was called the Leibnitz Calculator/ machine. LEIBNITZ CALCULATOR
- 9. In 1801, Joseph-Marie Jacquard, a Frenchman, invented the Jacquard’s loom. Jacquard’s loom used punch card to program pattern that were outputted as woven fabrics by the loom. JACQUARD’S AUTOMATIC LOOM
- 11. Difference Engine In 1822, Charles Babbage, a British mathematician professor, invented the Difference Engine. Powered by steam & as large as a locomotive, the machine had the capacity to perform calculations & print the results. ELECTRO-MECHANICAL COMPUTING DEVICES
- 13. In, 1833, several years after Babbage worked on the Difference Engine, he began working on the first general-purpose digital computer, which he called the Analytical Engine. This steam-powered engine outlined the basic elements of today’s modern general-purpose computer and was a breakthrough concept. ANALYTICAL ENGINE
- 16. In 1889, Herman Hollerith, an American inventor, invented the Hollerith’s Tabulating Machine . The machine was a punch card reader & had the capacity to store & process data. Hollerith brought his punch card reader into the business world, founding the Tabulating Machine Company which later became International Business Machine (IBM) in 1924. HOLLERITH’S TABULATING MACHINE
- 18. This all-electronic calculator was invented by Howard H. Aiken in 1930. This was used to create ballistic charts for the U.S. Navy. The Mark 1 is called the Harvard- IBM Automatic Sequence Controlled Calculator. MARK 1
- 19. MARK I
- 20. Between 1943 and 1946, the ENIAC or the Electronic Numerical Integrator and Computer was developed by John Presper Eckert and John Mauchly. This general purpose computer computed at a speed 1,000 times faster than the Mark 1. ENIAC
- 21. ENIAC
- 23. Supercomputers are the most powerful computers made. Supercomputers are used to process huge amount of data for complex processes such as nuclear fission. SUPERCOMPUTERS
- 24. SUPERCOMPUTERS
- 25. Mainframe computers are the largest among the computers in use today. Mainframe computers are used where many people in large organizations are frequently accessing similar information. MAINFRAME COMPUTERS