Question

which type of computer do Indian Railways used to interact with the customers and for booking and calculate cancelling of tickets

Answer 1

HI 

Mainframe computers are used by the Indian railways to interact with the customers for various online functions.  

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Answer 2

Answer:

Mainframe Computer

Explanation:

Generally for large organisation like Indian Railways, or for critical operations, Mainframe computers are used. They are larger in size and even they are more powerful as compared to other types of computers. The large  cabinets are usually called as the "main frames" which is the house for many memory of early computers. Any fain frame can run multiple different OS at the same time. Generally, Main frames computer started the concept of virtualization, and virtualization is available in families of computers.