1
UNIT-1 COMPUER THEIR ORIGIN AND
APPLICATIONS -QUESTIONS AND
ANSWERS
1. The word computer comes from the word “compute” which
means to calculate.
2. Nearly 5,000 years ago, the “abacus” was developed in China in 3000 B.C.
3. The “abacus” may be considered the first computer.
4. The abacus is also called a counting frame.
5. . John Napier built a mechanical device for the purpose of multiplication in
1617 A.D. The device was known as Napier‟s bones.
6. English mathematician E. Gunter developed the slide rule.
7. Blaise Pascal was a French mathematician and one of the first modern
scientists to developed and build calculator.
8. Like Pascal, Gottfried Leibniz was a seventeenth century scientist who
recognized the value of building machines and built around 1673 a
mechanical device that could do mathematical calculations and save labor
too. - Leibniz’s Multiplication and Dividing Machine
9.Father of Computer – Charles Babbage[ Difference Engine,Analytical
Engine]
10.How many computer generations are there?
1. First Generation Computer
2. Second Generation Computer
3. Third Generation Computer
4. Fourth Generation Computer
5. Fifth Generation Computer
11.How Computers work?
UNIT-1 COMPUER THEIR ORIGIN AND
APPLICATIONS -QUESTIONS AND
ANSWERS
1. The word computer comes from the word “compute” which
means to calculate.
2. Nearly 5,000 years ago, the “abacus” was developed in China in 3000 B.C.
3. The “abacus” may be considered the first computer.
4. The abacus is also called a counting frame.
5. . John Napier built a mechanical device for the purpose of multiplication in
1617 A.D. The device was known as Napier‟s bones.
6. English mathematician E. Gunter developed the slide rule.
7. Blaise Pascal was a French mathematician and one of the first modern
scientists to developed and build calculator.
8. Like Pascal, Gottfried Leibniz was a seventeenth century scientist who
recognized the value of building machines and built around 1673 a
mechanical device that could do mathematical calculations and save labor
too. - Leibniz’s Multiplication and Dividing Machine
9.Father of Computer – Charles Babbage[ Difference Engine,Analytical
Engine]
10.How many computer generations are there?
1. First Generation Computer
2. Second Generation Computer
3. Third Generation Computer
4. Fourth Generation Computer
5. Fifth Generation Computer
11.How Computers work?
