Which is the first calculating device?
A) Computers
B) Abacus
C) Difference Engine
D) Tally Sticks

=> Write Sort Brief Evolution of computers timeline.
=> कंप्यूटर टाइमलाइन का सॉर्ट ब्रीफ इवोल्यूशन लिखें।
=> Which country used abacus first?
=> Which is the first calculating device?
=> Pascaline was invented in:
=> Who is known as Father of Computers?
=> Integrated Chip had been started in ?
=> ENIAC stands for:
=> Who invented Apple Computers?