Explanation:

A supercomputer is a computer that performs at or near the currently highest operational rate for computers.

• Generally, PETAFLOP is a measure of a Supercomputer’s processing speed and can be expressed as a thousand trillion floating-point operations per second.
• FLOPS (floating-point operations per second) are typically used to measure the performance of a computer’s processor.
• Using floating-point encoding, extremely long numbers can be handled relatively easily.
• India’s first supercomputer was PARAM 8000. Rudra, an indigenously developed server platform is being tried out in a pilot system, with an interconnect for inter-node communication called Trinetra.

Hence only statement 1st is correct.