Which of the following computers is the most powerful and used for complex scientific calculations?

Correct option is C

Ans. (c)
Sol. Supercomputers are extremely powerful systems used in weather forecasting, nuclear research, and simulations. They can process trillions of instructions per second and work on tasks involving massive datasets, far beyond the capacity of normal personal computers.
Explanation of each option:
· (a) Personal Computer – Designed for individual use, low power.
· (b) Laptop – Portable personal computer with moderate computing power.
· (c) Supercomputer – Correct. Most powerful and used in science and defense.
· (d) Notebook – Lightweight version of a laptop, not highly powerful.