Apple 5260 Benutzerhandbuch

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 Basics
Processor Direct Slot (PDS) - 9
 
Processor Direct Slot (PDS)
 
The LC-PDS is compatible with the PDS in the Macintosh LC 
family of computers, but it is not a true PDS. Like the 
expansion slot in the other models in the Power Macintosh 
and Performa 5000 series, this expansion slot supports 
many PDS cards designed to operate with the MC68030 bus.
While the I/O expansion slot accepts PDS cards designed for 
the Macintosh LC family of computers, some of those cards 
do not work. PDS cards designed to interact with the main  
processor—to provide, for example, a RAM cache or an 
FPU—will not work in the I/O expansion slot.