- Charles Babbage: Inventor and mathematician
- Proposed a machine that would solve the equations better by calculating the differences between them.
- 1830: full scale working version was built with British grant
- Negative: vulnerable to smallest imperfections
*proposed analytical engine which embodied
the features of modem computers (i.e.input, storage, processor,
control unit, output)
*known as the Father of Computer.
- Countess of Lovelace, also a mathematician
- Knew Babbage’s theoretical approach was workable
- Helped develop the instructios for doing computations on the analytical engine
- Known as the world’s first computer programmer
- Herman Hollerith’s tabulating machine was used for 1890 United States census
- Hand done tabulation in 1880 census which took more than 7 years only took 6 weeks for counting process with his machine
- 1896- founded the successful Tabulating Machine Co., which then known as IBM Corp. in 1924
- Used electrical rather than Babbage’s mechanical power
- 1942- Atanasoff-Berry Computer (ABC) was developed, marked as the first digital computer that worked electronically
- 1944- Mark I was unveiled by IBM Corp, made by Howard Aiken
- 1946- Based on ABC, Electronic Numeric Integrator and Calculator or ENIAC was invented, the first general-purpose computer
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