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Mainframes - CIO.com - Business Technology Leadership (1269 words) |
 | Just proving that your mainframe saves money for the company is not enough anymore. |
| You also must prove that IT is helping to bring in new revenue. |
| Fortunately, technology can help you extend your mainframe to help in that effort. |
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Mainframe computer - Wikipedia, the free encyclopedia (2229 words) |
| Mainframes (often colloquially referred to as big iron) are large and "expensive" computers used mainly by government institutions and large companies for mission critical applications, typically bulk data processing such as censuses, industry/consumer statistics, ERP, and financial transaction processing. |
| Nearly all mainframes have the ability to run (or "host") multiple operating systems and thereby operate not as a single computer but as a number of "virtual machines." In this role, a single mainframe can replace dozens or even hundreds of smaller servers, reducing management and administrative costs while providing greatly improved scalability and reliability. |
| The distinction between supercomputers and mainframes is not a hard and fast one, but generally one can say that supercomputers focus on problems which are limited by calculation speed while mainframes focus on problems which are limited by Input/Output and reliability. |
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