Computer

In the early 17th century,the word "computer" referred to the people who performed :

• Dance performances

• Athletics

• Science Experiments

• Mathematical calculations

Earliest known machine for calculations:

• Abacus

• Xylo phone

• Analytical engine

• Pascaline

Abacus is of which shape:

• Rectangle

• Square

• Circle

• Triangle

Pascaline was the first mechanical calculating machine invented in the year:

• 1542

• 1642

• 1833

• 1625

When was the first modern computer invented:

• 1922

• 1932

• 1936

• 1945

------------- generation computers were large in size and very very costly.