Evolution and History of Computer Class 9 Questions with Answers
Find here the NCERT/SEBA chapter-wise questions and answers from Evolution and History of Computer Class 9 Computer Chapter 1 Question Answer. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Evolution and History of Computer. Each question has four options followed by the right answer. These Questions are selected supported by the newest exam pattern as announced by NCERT/SEBA.
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| Class 9 Computer Chapter 1 Question Answer |
Class 9 Computer Chapter 1 Question Answer SEBA / NCERT
Objective Type Questions & Answers
1. Fill in the blanks -
a) __ is the semi-automatic device that used instructions stored on a punched card to control the movement of threads.
Answer:- Tabulating machine.
b) __ designed the analytical engine.
Answer:- Charles Babbage.
c) The ENIAC was developed by __ .
Answer:- John Mauchly and J. Presper Eckert.
d) The EDSAC was the first computer based on the concept of __ .
Answer:- stored program architecture for computers.
e) __ developed the punched card as a means of controlling the loom.
Answer:- Joseph Jacquard.
f) __ was on of the first commercially available computers.
Answer:- Universal Automatic Computer I (UNIVAC I).
g) The first electromechanical computer was developed by __ .
Answer:- John Atanasoff and Clifford Berry.
h) The first-generation computers were based on __ .
Answer:- Vacumm Tube and Magnetic Drum.
i) IBM 1401 is an example of __ generation computers.
Answer:- Second.
j) Fourth-generation computers are based on __ .
Answer:- Microprocessors
2. Say whether the following statements are True or False -
a) Abacus is an example of a manual calculating devic(e).
Answer:- True.
b) Modern abacus probably originated in the 13th century in China.
Answer:- False.
c) Pascal devised a mechanical loom, which made weaving complex patterns a lot easier.
Answer:- False.
d) Pascaline is an example of an electromechanical calculating devic(e).
Answer:- False.
e) EDSAC was designed by Professor M. Wilkes of Cambridge University, England.
Answer:- True.
f) Electronic computers are classified into various generations on the basis of the difference in technology.
Answer:- True.
g) Second-generation computers are based on transistors.
Answer:- True.
h) IBM 370 series is an example of second-generation computers.
Answer:- False.
i) Third-generation computers were characterized the use of integrated circuits.
Answer:- True.
3. Choose the correct options -
a) Pascaline was developed by -
i) Blaise Pascal
ii) Gottfried Wilhelm von Leibnitz
iii) Charles Babbage
iv) Herman Hollerith
Answer:- i) Blaise Pascal
b) The analytical engine was designed by -
i) Blaise Pascal
ii) Gottfried Wilhelm von Leibnitz
iii) Charles Babbage
iv) Herman Hollerith
Answer:- iii) Charles Babbage
c) Harvard Mark I was -
i) A manual calculating device.
ii) A semi-automatic calculating device.
iii) An electromechanical calculating device.
iv) An electronic computer.
Answer:- iii) An electromechanical calculating device.
d) A computer developed by John Mauchly and J. Presper Eckert -
i) ENIAC
ii) Macintosh
iii) ABC
iv) Z3
Answer:- i) ENIAC
e) Punched cards are associated with the name -
i) Hollerith
ii) Leibnitz
iii) Jacquard
iv) Pascal
Answer:- iii) Jacquard
f) The first stored program computer was -
i) UNIVAC I
ii) ENIAC
iii) EDSAC
iv) None of these
Answer:- iii) EDSAC
g) The first commercial computer was -
i) UNIVAC I
ii) ENIAC
iii) EDSAC
iv) None of these
Answer:- i) UNIVAC I
h) Third-generation computers used -
i) Transistors
ii) Vacuum Tubes
iii) Integrated circuit
iv) None of these
Answer:- iii) Integrated circuit
i) Fourth generation computer used -
i) Vacuum Tubes
ii) Transistors
iii) Microprocessors
iv) None of these
Answer:- iii) Microprocessors
Descriptive Type Questions and Answers
A. Short answers questions -
Q1. Name any one manual calculating device.
Answer:- Abacus is a manual calculating device.
Q2. Who is known as the 'father of the modern computer'?
Answer:- English mathematician Charles Baggage is known as the 'farther of the modern computer'.
Q3. Give one example of an electromechanical calculating device.
Answer:- Tabulating machine (1887) is an example of an electromechanical calculating device.
Q4. Name the first computer that implemented the idea of John von Neumann.
Answer:- EDSAC (Electronic Delay Storage Automatic Computer) is the first computer that implemented the idea of John von Neumann.
Q5. Who invented the tabulating machine?
Answer:- American inventor Herman Hollerith invented the tabulating machine.
Q6. Name the first electronic digital computer.
Answer:- Atanasoff-Berry Computer (1941) was the first electronic digital computer.
Q7. Give the full of the following -
i) ENIAC - Electronic Numerical Integrator and Computer.
ii) EDSAC - Electronic Delay Storage Automatic Computer.
Q8. Computer of which generation were based on transistors?
Answer:- Computers of Second generation were based on transistors.
Q9. Give one example of second-generation computers.
Answer:- Model 604 is an example of second-generation computers.
Q10. IBM's PC and Apple's Macintosh are example of which generation of computers?
Answer:- IBM's PC and Apple's Macintosh are example of fourth generation of computers.
B. Long Questions Answers -
Q1. Write a short note on Abacus.
Answer:- The development of this calculating device can be traced back to the ancient counting boards used in Mesopotamia around 3500BC. These counting boards consisted of pitted boards with pebbles or beads, which were used for performing calculations. The modern abacus probably originated in the 15th century China. It consists of a rectangular frame carrying a number of rods or wires. The rods have beards that can be moved along the rods, which are used for performing calculations.
Q2. Write a short note on Jacquard's loom.
Answer:- Joseph Jacquard devised a mechanical loom called Jacquard's loom in 1801 and also developed a punched card as a means of controlling the loom, which made weaving complex patterns a lot easier. The device used instructions stored on a punched card to control the movement of threads.
Q3. Write a short note on Napier's bones.
Answer:- Napier's bones is a calculating device invented by Scottish mathematician Sir John Napier in the 17th century. Napier's bones are numbered rods that can be used for multiplying a long number by a single digit number. Each rod is divided into ten squares. The top square has a digit, with the multiplication table of that digit written vertically downward. The digits of the multiplication table are split by a diagoanl line. A special rod, having the digits 1 to 9 arranged vertically downward, was used to represent the multiplier.
Q4. Name the machines designed by Charles Baggage.
Answer:- The machines designed by Charles Baggage were Difference engine (1822) and Analytical engine (1832).
Q5. What is the contribution of John von Neumann in the field of computers?
Answer:- The Electronic Delay Storage Automatic Computer (EDSAC) was the first computer to be built on the stored program architecture for computers proposed by the scientist and mathematician John von Neumann. This design architecture for computer, originally proposed for the EDVAC but implemented first in the EDSAC, is also called the Von Neumann architecture. The EDSAC was completed in 1949. The program was fed into its storage unit by means of a paper tape. It also used vacuum tubes and was slightly faster than ENIAC.
Q6. Who devised Harvard Mark I? What was it used for?
Answer:- American computer engineer Howard H. Aiken devised the first electromechanical computer called IBM Automatic Sequence Controlled Calculator or Harvard Mark I.
It was used for creating ballistic charts for the US Navy.
Q7. What are the characteristics features of the third-generation computers?
Answer:- Third generation computers were based on integrated circuit (or microchips). The third generation computers were the first to use an operating system that allowed them to run many different programs at one time. IBM's 360 series and 370 series computers are example of third-generation computers.
Q8. What are the basic differences between the four generations of computers? Give two examples of the first-generation computers.
Answer:- Fourth-generation computers are based on microprocessors.
IBM's Personal Computer (PC) and Apple's Macintosh are the examples of fourth-generation computers.
Q9. What are supercomputers?
Answer:- A supercomputer is a computer that performs at or near the currently highest operational rate for computers. Traditionally, supercomputers have been used for scientific and engineering applications that must handle very large databases or do a great amount of computation (or both).
Q10. What are artificial intelligence?
Answer:- Japan initiated an ambitious project called the fifth Generation Computer Project as early as 1982, whose objectives were to developed supercomputers that would form the base for a new range of computers that will mimic human communication and knowledge-processing capabilities which is also called artificial intelligence.
Additional Questions with Answers
A. Very Short Type Questions and Answers - (Mark:- 1)
Q1. Who developed Z3?
Answer:- The Z3, a first-generation computer was developed by German engineer Konrad Zuse, was used in designing airplanes and missiles.
Q2. Who made Colossus?
Answer:- The Colossus computers were made in 1943 by the British to decode German messages during World War II.
Q3. Who developed UNIVAC I?
Answer:- Universal Automatic Computer I (UNIVAC I), a first-generation computer was developed by John Mauchly and J. Presper Eckert in 1951, was one of the first commercially available computers.
Q4. Write the full forms of the following -
i) COBOL - Common Business Oriented Language.
ii) FORTRAN - Formula Translation.
iii) EDVAC - Electronic Discrete Variable Automatic Calculator.
B. Short type Questions and Answers - (Marks:- 2/3)
Q1. Who developed the Staffelwalze?
Answer:- German mathematician and philosopher Gottfried Wilhelm Von Leibnitz developed the Staffelwalze which was an improvement over the Pascaline.
Q2. Write a note on Analytical engine?
Answer:- Charles Babbage proposed the machine Analytical engine in 1832 which had the basic elements of a modern general-purpose computer. The basic plan proposed for the analytical engine completely matches with the input, process, and output concept of the present generation of computers.
Q3. Write a note on ENIAC?
Answer:- The Electronic Numerical Integrator and Computer (ENIAC) developed by John Mauchly and J. Presper Eckert was the first fully electronic general-purpose digital computer. It was a huge machine, consisting of 18,000 vacuum tubes, 70,000 resistors, and 5 million soldered joints, and weighed about 30 tons. It was a general-purpose computer that could add two large numbers in 200 microseconds.
Q4. Write about fourth-generation computers?
Answer:- Fourth-generation computers are based on microprocessors. IBM's Personal Computer (PC) and Apple's Macintosh are examples of fourth-generation computers.
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