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B. Fill in the blanks.
1. Second Generation computers used____________ language.

2. The_____________ generation computer use microprocessor.

3. __________________ introduced the first personal computer (PC).
4. _______________invented the calculating device NAPIER’S BONES.

5. The first electro-mechanical computer named __________.

C. Match the following:
1. Macintosh a. UNIVAC

2. Cobol b. Apple

3. Herman Hollerith c. Robots
4. Artificial Intelligence d. High level language

5. Vacuum tube e. Tabulating Machine

D. State whether these statements are true or false.

1. Earlier bones, stones were used for calculation. _____
2. Fourth generation computers use Vacuum tubes. _____

3. MARK-I was first electro-mechanical computer. _____

4. UNIVAC was developed in 1942. _____
5. Charles Babbage developed Analytical engine. _____

Something to Do

Make the following table in your notebook and write Inventors and year.

INVENTORS YEAR

Pascaline
Analytical

MARK-1

ENIAC
TABULATING MACHINE

ABACUS

STEP RECKONER

60 KVS DELHI REGION 2025