Original iMac Networking

i hope found right spot post. couldn't find prehistoric section.

happened; original imac (i think has been nicknamed blueberry) mother has been using word processor has reached point of forced hibernation. using macbook pro purchased last year , trying pull documents off of imac. tried using thumb drive, , power external hard drive, both pulled error message reads, "the software needed use usb device 'usb serial-ata bridge' cannot found. please refer device documentation install necessary software." don't think installing software on thing option, tried hand @ networking 2 via ethernet. have not been able reach proper connection between two, , have been trying use walkthroughs posted on apple's website connection. made sure turn on file sharing on imac, , still can't computer register on macbook pro's network. have experience this? other recommendations? here specs of imac (don't laugh!)

mac os 8.6
built-in memory 32mb
virtual memory 400 mb
largest unused block 384.8 mb

, macbook pro (for it's worth)
mac os x 10.6.8
processor 2.3 ghz intel core i5
memory 4 gb 1333 mhz ddr3

thank in advance!

 

because macbook pro has snow leopard, cannot connect classic mac os , vise-versa. suggest finding usb mass storage driver mac os 8.6, burning onto cd , installing it. download here: https://support.apple.com/kb/dl1265?viewlocale=en_us

 

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