Answer this question: what is middle class in the us?
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Answer: Depending on class model used, the middle class may constitute anywhere from 25% to 66% of households.

Answer this question: What is firebird server?
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Answer: The database forked from Borland 's open source edition of InterBase in 2000, but since Firebird 1.5 the code has been largely rewritten.

Answer this question: what is pci Interface?
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Answer:
Conventional PCI (PCI is an initialism formed from Peripheral Component Interconnect, part of the PCI Local Bus standard and often shortened to just PCI) is a local computer bus for attaching hardware devices in a computer .