Early man used to count with the help of stones, fingers etc.
Herman Hollerith invented Tabulating Machine in 1990.
Mark I was the first electro-mechanical computer.
The first generation computers did not produce a lot of heat.
The third generation of computers used vacuum tubes.
Integrated Circuit was used in the fourth generation of computers
Answers
Answer:
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Explanation:
Answer:
1): However, three major tools that helped early humans count seem to be sticks and bones used for marking notches, stones and other small objects, and fingers and toes. ... These pieces of evidence show that early humans did in fact use simple notations to symbolize quantity.
2): Herman Hollerith (February 29, 1860 – November 17, 1929) was an American businessman, inventor, and statistician who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting.
Founded: Computing-Tabulating-Recording Company, Tabulating Machine Company
Born: February 29, 1860
Profession: Businessman, Inventor, Statistician
Died: November 17, 1929, Washington D.C
3): A vacuum tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry.
4): 1940 – 1956: First Generation – Vacuum Tubes. These early computers used vacuum tubes as circuitry and magnetic drums for memory. ...
1956 – 1963: Second Generation – Transistors. ...
1964 – 1971: Third Generation – Integrated Circuits. ...
1972 – 2010: Fourth Generation – Microprocessors.
5): VLSI
The period of fourth generation was from 1971-1980. Computers of fourth generation used Very Large Scale Integrated (VLSI) circuits. VLSI circuits having about 5000 transistors and other circuit elements with their associated circuits on a single chip made it possible to have microcomputers of fourth generation.