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Chapter 4

Exercise

A. Answer the following questions:

1. Abacus 2. Second Generation
3. Electronic Numerical Integrator And Computer

4. Fifth Generation 5. Charles Babbage

B. Fill in the blanks.
1. Assembly 2. fourth 3. IBM 4. John Napier 5. MARK-1.

C. Match the following:

1. b. 2. d. 3. e. 4. c. 5. a.

D. State whether these statements are true or false.
1. True 2. False 3. True 4. False. 5. True

Something to Do

Inventors Year
Pascaline Blaise Pascal 1642

Analytical Engine Charles Babbage 1833

MARK-1 Howard Aiken, IBM 1944
ENIAC John Presper Eckert, John W. Mauchly 1945

Tabulating Machine Herman Hollerith 1890

Abacus China 5000 years ago
Step Reckoner Gottfried Wilhelm Leibniz 1672

Chapter 5

Exercise

A. Answer the following questions:

1. Saves Time: Templates provide pre-designed layouts, so you don’t have to start from
scratch.
Consistency: Ensures a uniform look and format throughout the document.
2. Select the image. Click on rotate and Rotate the image.

3. This is used to insert page number anywhere in the document.
4. Use the template of invitation. Just write your friend’s detail and party details and use.

5. Use insert à objects à formulas

78 KVS DELHI REGION 2025