A flash memory test system capable of test time reduction and an electrical test method using the same: The invention provides a parallel tester that includes a first memory and a second memory. The first and second memories are used to each supply different data to identical addresses within a plurality of DUTs, thereby making it possible to conduct in parallel tests such as trim tests, repair tests, and invalid block masking test. Thus parallel testing is done to replace testing that was previously done serially.

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> System and method for controlling the recording functionality of an appliance using a program guide

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