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History of Computer

Pre Computer Age (Before 1800s)

• Abacus (2400 BC) – First tool used for calculation.
• Pascaline (1642) – Mechanical calculator invented by Blaise Pascal.
• Leibniz Calculator (1673) – Could perform multiplication and division.

Concept of Modern Computers (1800s)

• Charles Babbage – Known as the Father of Computer.
• Ada Lovelace – First computer programmer.

Electromechanical Era (1930–1940)

• Z3 (1941) – First programmable computer by Konrad Zuse.
• Colossus (1943) – Used to break codes during World War II.
• ENIAC (1946) – First general purpose electronic computer.

Commercial Computers (1950–1960)

• UNIVAC I (1951)
• Mainframe Computers used by large organizations.

Personal Computer Era (1970–1980)

• Altair 8800 – First personal computer kit.
• Apple II – First easy-to-use computer.
• IBM PC – Standard computer for business use.

Modern Computer Era (1990 – Present)

• Laptops, Smartphones, Tablets
• Internet and Cloud Computing
• Artificial Intelligence and Big Data

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