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Mainframe operating system: z/TPF Mainframe concepts |
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The z/Transaction Processing Facility (z/TPF) operating system is a special-purpose system that is used by companies with very high transaction volume, such as credit card companies and airline reservation systems. z/TPF was once known as Airline Control Program (ACP). It is still used by airlines and has been extended for other very large systems with high-speed, high-volume transaction processing requirements. z/TPF can use multiple mainframes in a loosely coupled environment to routinely handle tens of thousands of transactions per second, while experiencing uninterrupted availability that is measured in years. Very large terminal networks, including special-protocol networks used by portions of the reservation industry, are common. |
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