Mainframes And Supercomputers

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Mainframes And Supercomputers

Mainframes
The oldest category of computers is the mainframe. Mainframe computers are capable of great processing speeds and data storage. They are generally stored in specially wired, highly air conditioned rooms. Because they produce large amounts of heat they produce they are water or air-cooled. Mainframes are made of thousands of light bulb like fixtures called vacuum tubes. They are typically the size of a jeep and range in price from $50,000 to $5 million. These machines are primarily used by large companies such as banks, insurance companies, and airlines, that handle millions of transactions. Mainframes were first produced in the 1940s. Some companies are still using the first mainframes produced such as the Univac. The world has invested one trillion dollars in mainframe computers, sixty percent of which were made and sold by IBM. With the invention of the microprocessor and printed circuit boards mainframes are often being replace by smaller networked computers. As time progresses mainframes will be kept for some purposes, networks of smaller computers will grow, and the mainframe will be reinvented.(Hutchinson) The ...

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