What is mainframe?
Mainframes are used by large and medium-sized companies such as banks, insurance companies, manufacturers, Travel & Retail Sector and Telecom Companies to process large amounts of data quickly. Mainframes used to be defined by their size, and they can still fill a room, cost millions, and support thousands of users. But now a mainframe can also run on a laptop & support 2 users. Today, thousands of people around the globe book flights,do Electronic Money Transfers, swipe their credit-cards for purchases.These transactions are processed on-the-fly in a snap by a Mainframe Computer. Mainframes were one of the first computers used by businesses; they are capable of processing millions of instructions per second and have access to trillions of characters of data.