EVOLUTION OF COMPUTER-YEAR 6

First mechanical computer

• Pascaline

• Analytical engine

• Mark I

• None

First calculating device

• Abacus

• Napier's bones

• Pascaline

• Difference engine

The circuit used in 1st generation of computers in 1940-56

• vaccum tubes

• transistors

• integrated circuits

The circuitry used in 2nd generation of computers in the year 1956-63

• Transistors

• Vaccum tubes

• micro processors

These computers are used for weather forecasting, space research and satellite control

• Super computers

• Mainframe computers

• Mini computers

These computers are used in bank, universities and in any other big organizations

• Mini computers

• Macro computers

• Super computers

These computers are used in homes, schools, offices and shops

• Micro computers

• Mini computers

• Super computers

____________ was the first mechanical device for calculations, developed in China

• Analytical engine

• Napier's Bones

• Abacus

These computers are smaller and lighter than laptop generally 7 inch or 10 inch screen

• Tablet computers

• Laptop computers

• Desktop computers

Identify the first calculator.

• Difference engine

• Pascaline

• ENIAC

• UNIVAC