class5 Chapter1

Second generation computers used

• Vacuum tubes

• Microprocessors

• Transistors

• Integrated circuits

First super computer made in India

• CRAY CS300

• PARAM 8000

• IBM 1401

• RCA 501

Find the odd one out

• Speed

• Accuracy

• Humorous

• Diligence

First calculating device

• Abacus

• Napier's bones

• Pascaline

• Difference engine

Who built the Difference engine?

• a. Herman Hollerith

• b. Blaise Pascal

• c. Charles Babbage

• d. Howard Aiken

Who suggested Binary Data storage (0 and 1) instead of decimal number system?

• a. Charles Babbage

• b. Howard Aiken

• c. Charles Xavier Thomas

• d. Augusta Ada Lovelace

..................are used in homes, schools, shops, offices, banks etc.

• MICRO COMPUTERS

• MINI COMPUTERS

• MAIN FRAME COMPUTERS

Which computers are used for weather forecast?

• a. Mainframe Computer

• b. Micro computers

• c. Mini Computer

• d. Super Computer

Abacus was the first calculating device.

• TRUE

• FALSE

Which computer is the most powerful?

• Supercomputers

• Minicomputers

• Worstation

• Mainframe

• Personal Computer