WEEK/TERM: THIRD TERM/WEEK 1
DATE: 27.04.2020
CLASS: GRADE 4
SUBJECT: COMPUTER SCIENCE
TOPIC: HISTORY OF COMPUTERS
REFERENCE:
BRIEF EXPLANATION:
French philosopher, Mathematician, and physician Blaise Pascal invented a machine in 1642 that added and subtracted, automatically carrying and borrowing digits from column to column.
ENIAC (Electronic Numerical Integrator and computer), was the first large-scale, general purposes computer.
There are five generations of computer
The Chinese invented the Abacus.
Charles Babbage is the father of computer and he designed the Analytical Engine, it was first described in 1837 as the successor to Babbage’s Difference Engine.
NOTES FOR THE CHILDREN
Computers and electronics play an enormous role in today’s society, impacting everything from communication and medicine to science.
Although computers are typically viewed as a modern invention involving electronics, computing predates the use of electrical devices. The ancient abacus was perhaps the first digital computing device. Analog computing dates back several millennia as primitive computing devices were used as early as the ancient Greeks and Romans, the most known complex of which being the Antikythera mechanism. Later devices such as the castle clock (1206), slide rule (c. 1624) and Babbage’s Difference Engine (1822) are other examples of early mechanical analog computers.
The introduction of electric power in the 19th century led to the rise of electrical and hybrid electro-mechanical devices to carry out both digital (Hollerith punch-card machine) and analog (Bush’s differential analyzer) calculation. Telephone switching came to be based on this technology, which led to the development of machines that we would recognize as early computers.
The presentation of the Edison Effect in 1885 provided the theoretical background for electronic devices. Originally in the form of vacuum tubes, electronic components were rapidly integrated into electric devices, revolutionizing radio and later television. It was in computers however, where the full impact of electronics was felt. Analog computers used to calculate ballistics were crucial to the outcome of World War II, and the Colossus and the ENIAC, the two earliest electronic digital computers, were developed during the war.
With the invention of solid-state electronics, the transistor and ultimately the integrated circuit, computers would become much smaller and eventually affordable for the average consumer. Today “computers” are present in nearly every aspect of everyday life, from watches to automobiles.
EXERCISES/ASSIGNMENTS
1.) What is computer?
2.) _______ is the father of modern computer.
3.) _________ was the first computer.
4.) ENIAC stands for _____________
5.) Based on the history of computer; can you say Charles Babbage invented computer or not. Explain your answer.
6.) Why is Charles Babbage called the father of computer?