Question

Class 9
History of Computer from ABACUS and Generation of Computer from (1945 – 1990)​

Answer 1

Answer:

The modern computer took its shape with the arrival of your time. It had been around 16th century when the evolution of the computer started. The initial computer faced many changes, obviously for the betterment. It continuously improved itself in terms of speed, accuracy, size, and price to urge the form of the fashionable day computer. This long period is often conveniently divided into the subsequent phases called computer generations:

First Generation Computers (1940-1956)

Second Generation Computers (1956-1963)

Third Generation Computers (1964-1971)

Fourth Generation Computers (1971-Present)

Fifth Generation Computers (Present and Beyond)

Before there are graphing calculators, spreadsheets, and computer algebra systems, mathematicians and inventors searched for solutions to ease the burden of calculation.

Below are the 8 mechanical calculators before modern computers were invented.

1. Abacus (ca. 2700 BC)

2. Pascal’s Calculator (1652)3. Stepped Reckoner (1694)

4. Arithmometer (1820)

5. Comptometer (1887) and Comptograph (1889)

6. The Difference Engine (1822)

7. Analytical Engine (1834)

8. The Millionaire (1893)