CBSE Class 5 Computer Science Evolution of Computers Assignment

[A] ANSWER THE FOLLOWING QUESTIONS-

Question. Write any three features of fourth generation of computer.
Answer : 1) It has more capacity to store data.
2) It works faster than third generation computer.
3) It uses microprocessor which reduces its size.

Question. What do you know about laptop computer?
Answer : Laptop computers are small in size and are battery operated. These can be carried and used anywhere.

Question. Name the types of Micro computers.
Answer : The types of Micro computers are desktop, laptop and handheld computers.

Question. Write the full form of :
Answer : 1) PC - Personal Computer.
2) IC - Integrated Circuit.

Question. What is Abacus?
Answer : Abacus also called a counting frame is a calculating tool performing arithmetic processing. It was invented in 16th Century in China.

Question. Who invented Napier’s bones and when?
Answer : Napier’s Bones was a calculating device. It was invented by Sir John Napier in 1660.

Question. What is the function of Jacquards Card?
Answer : Jacquards Card was use to weave patterns into fabric’s using cards with punched holes. It was developed by Joseph Marie Jacquard.

Question. Name some early computing device?
Answer : Some early computing devices are-
(i) Abacus
(ii) Napier’s Bones
(iii) Pascaline
(iv) Jacquards Card
(v) Difference Engine
(vi) Analytical Engine

Question. Write the classification of computer?
Answer : Classification of computers -
(i) First Generation Computers              (1947-1956)
(ii) Second Generation Computers        (1956-1964)
(iii) Third Generation Computers          (1964-1971)
(iv) Fourth Generation Computers        (1971-1982)
(v) Fifth Generation Computers            (1982 onwards)

[B] FILL IN THE BLANKS-

1. Russian and Japanese abacus were slightly different from the Chinese abacus.
2. Charles Babbage is known as the father of computers.
3. Languages such as COBOL and FORTRAN were used during second generation computer.
4. Napier’s bones was invented by Sir John Napier.
5. PARAM and ANURAG are the names of super computers.

[C] STATE TRUE OR FALSE-

1- Abacus was not invented in China .                                           ( False)
2- Super Computer ANURAG was not named in India.                    (False)
3- The first electronic computer was named Mark 1.                       (True)
4- The weight of ENIAC was approximately 25 bones .                    ( False)
5- Fifth generation computer are also known as Super Computer.    (True)

[D] WRITE THE FULL FORM OF-

(i) IBM- International Business Machine
(ii) ENIAC- Electronical Numerical Integrator and Computer
(iii) MICR- Magnetic Ink Character Reader

Question. Name the following-
(i) The first counting device - ABACUS
(ii) The first mechanical calculating device - Pascaline
(iii) The world’s first successful electro - mechanical computer – ENIAC
(iv) John Napier invented - Napier’s Bones
(v) Analytical Engine invented by- Charles Babbage
(vi) Weight of ENIAC machine – 30 tons

Question. Name the computer generation which used these technologies -
(i) Vacuum tubes -- First generation
(ii) Integrated circuits -- Third generation
(iii) Transistors – Second generation
(iv) Artificial Intelligence – Fifth generation
(v) Microprocessor – Fourth generation

Answer the following questions –

Question.(i) How was the second generation of computers faster than first generation computers ?
Answer : The first generation computers were used vacuum tubes and they were very large , expensive and required huge amount of electricity.
The second generation computers used transistors instead of vacuum tubes. As transistors are smaller than vacuum tubes. The second generation computers became much smaller in size .They also became faster and cheaper.

Question.(ii) Why was the third generation of computers better than second generation computers ?
Answer : Integrated circuit was introduce during the development of 3rd generation computers . An Integrated circuit (IC) is as small as a transistors but it can work as fast as thousands of them. Integrated circuits made computers faster, cheaper and smaller than the second generation computers. They used less electricity.

Question.(iii) Explain fourth generation computers .
Answer : The 4th generation computers were developed from 1971 to 1982 . In this generation computers used microprocessor. A microprocessor consist of a small silicon chip on which thousands of circuits are placed . The fourth generation computers are smaller portable and cheaper .They use less electricity and produce less heat.

Question.(iv) Define Super Computer.
Answer : Super computer is a computer at the frontline of current processing capacity , particularly speed of calculation . Fifth generation computers are also called super computer.

Topic : Evolution of Computers

Difficult Words
1. Evolution
2. Scientists
3. Extensively
4. Entertainment
5. Existence
6. Leibniz Calculator
7. Augusta Ada Lovelace
8. George Boole
9. Dr. Herman Hollerith
10. Tabulating Machine
11. John Von Neumann
12. Howard Aiken
13. Sophisticated
14. Artificial
15. Reliability
16. Mechanical
17. Analytical
18. Pascaline
19. John Napier
20. Andre Truong Trong Thi

Define:

Versality: A computer is a multipurpose machine that performs a variety of tasks and is used in almost all fields.

Multitasking: A computer can do many tasks at the same time.

ENIAC: ENIAC was the first general purpose electronic digital computer.

UNIVAC: UNIVAC was the first computer to handle both the numeric and text data.

Answer the following questions:

Q1: Who invented the mechanical digital calculator?
Answer : Blaise Pascal invented the mechanical digital calculator.

Q2: Who is considered as the father of computers?
Answer : Charles Babbage is considered as the father of computers.

Q3.Which was the first electronic digital computer and who invented it?
Answer : ENIAC was the first electronic digital computer invented by John Mauchy and J. Presper Eckert.

Q4: Which technology was used in the first generation of computers?
Answer : Vacuum Tubes was used in the first generation of computers.

Q5: Write any three features of fourth generation computers.
Answer : Three features of fourth generation computers are:
(i) Very Large Scale Integrator technology was used in fourth generation computers.
(ii) Keyboard, Mouse, Scanner are used in Date input operation.
(iii) Popular languages are RDBMS, C++, Java in fourth generation computers.