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Evolution of computer
- 3. Firmwares *Pre written programthat is permanently stored in ROM *It configures the computer *Firmware is held in non-volatile memory devices such as ROM, EPROM, or flash memory *Not easily modifiable •Ex –BIOS •*Almost all electronic devices beyond the simplest contain some firmware.
- 4. LIVEWARE • It isa slang term used to denote people using (attached to) computers, and is based on the need for a human, or liveware
- 6. EVOLUTION OF IT ThreeSections Evolution of computers Evolution of storage and display technology Evolution of software
- 8. • when manstarted to count the numbers, he thought of a device which can trace the numbers and thus came the existence of ABACUS. • It was the first counting device which was developed in China more than 3000 years ago. • The name Abacus was obtained from Greek word Abax which means slab. • This device basically consists of a rectangular wooden frame and beads.
- 9. • A devicewhich contains a set of rods made of bones. • Developed by John Napier, a Scottish Mathematician . • The device was mainly developed for performing multiplication and division. • Later in 1614 he also introduced logarithms.
- 10. • A calculatingmachine developed by Blaise Pascal, a French Mathematician. • It was the first device with an ability to perform additions and subtractions on whole numbers. The device is made up of interlocked cog wheels which contains numbers 0 to 9 on its circumference. • . Pascal patented this device in 1647 and produced it on mass scale and earned a handful of money.
- 11. • Improved theadding machineto perform multiplication and division
- 12. • Used forstoring and retrieving data. • Invented by Herman Hollerith, an American Statistician in US Census Bureau. • The system stores the data coded in the form of punched holes.
- 13. • The entirecontrol weaving process was automatic under a program’s control. • Punched cards used to control loom.
- 14. • Charles Babbage(1791-1871), computer pioneer, designed two classes of engine,Difference Engines, and Analytical Engines. Difference engines are so called because of the mathematical principle on which they are based, namely, the method of finite differences.
- 15. • Analytical Engine,generally considered the first computer • In conceptual phase and never completed in the real form. • Performing functionslike central processor,storage area,memory,input-output devices, • comparision and modification in storage data
- 17. • Later Hollerithfounded a company that became IBM
- 18. • Assembled byJohn Atansoff and Cliford Barry • Developed in1942 using 300 vacuum tubes. • Came up with the concept of binary numbers
- 19. MARK 1 • Couldmultiply two digits numbers in 5 seconds
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- 22. John Van NeumannArchitecture
- 23. John Van NeumannArchitecture
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- 30. FIFTH GENERATION (present &beyond)