National Instruments 373873C-01 用户手册

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Installing LabVIEW 
SignalExpress
You can use the LabVIEW SignalExpress CD to install LabVIEW 
SignalExpress and complete the exercises in this manual.
LabVIEW SignalExpress LE
LabVIEW SignalExpress LE gives you a 30-day trial of the Full version of 
LabVIEW SignalExpress. After that period, you must activate your version 
of LabVIEW SignalExpress LE or purchase the Full version. If you activate 
your version of LabVIEW SignalExpress LE before your 30-day trial of the 
full version is complete, the full features are still available for the remainder 
of your 30-day trial. You can use LabVIEW SignalExpress LE to complete 
simple data acquisition and logging functions.
If you do not register your version of LabVIEW SignalExpress LE after 
30 days, LabVIEW SignalExpress LE runs with the following limitations:
You can no longer save projects, so you cannot convert projects into 
LabVIEW block diagrams.
You can run projects for only 10 minutes per session.
Refer to the National Instruments Web site at 
 to 
purchase the full version of LabVIEW SignalExpress.
Minimum System Requirements
LabVIEW SignalExpress requires a minimum of 256 MB of RAM and a 
Pentium III or later or Celeron 866 MHz or equivalent processor, but 
National Instruments recommends 512 MB of RAM and a Pentium 4/M or 
equivalent processor.