Class 5 Computers - Then and Now

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A. Fill in the blanks with the correct words.

1. On Napier's Bones, numbers are carved on bones or strips of wood.
2. First mechanical computer was invented by Charles Babbage.
3. ENIAC did not have stored programs.
4. EDVAC was the first computer that used stored programs.
5. COBOL and FORTRAN came into use in second generation computers.

B. Write T for the true statement and F for the false one.
1. The abacus has only three rods. (F as it has more than 3 rods)
2. First-generation computers were very slow. (T)
3. Third-generation computers were smaller than second-generation computers. (T)
4. IBM 1401 is an example of third-generation computers. (F as it is from second-generation)
5. Japan was one of the first countries that tried developing artificial intelligence. (T)

C. Choose the correct option.
1. Which of the following can be performed using abacus?
a. Addition
b. Subtraction
c. Both a and b
d. None of these

2. ________ was the first mechanical calculator.
a. Napier's Bones
b. Pascaline
c. Abacus
d. None of these

3. First-generation computers used ________.
a. vacuum tubes
b. transistors
c. tubes
d. none of these

4. Which of the following was developed by John Presper Eckert and John W. Mauchly?
a. ENIAC
b. Mark I
c. EDVAC
d. None of these

5. ________ was used as the main component in second-generation computers.
a. Vacuum tube
b. Transistor
c. Chip
d. None of these

D. Answer the following.
1. Who is known as the 'father of modern computers'?
Charles Babbage

2. Name the first commercially available electronic computer.
UNIVAC I

3. Mention any two limitations of first-generation computers.
a. Required large space.
b. Power consumption was very high.

4. Give examples of third-generation computers.
IBM 360
IBM 370

5. State two characteristics of computers that involve artificial intelligence.
a. Ability to carry out sophisticated operations.
b. Might overcome the lack of thinking power.

Location: Asansol, West Bengal, India

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