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internal vs external hard drive on old MAC

I have a MAC Quadra 650 w/32MB RAM, and the original 230MB H-D. The local shops want about $400 to install a 2GB internal drive. For that $ I can mail order an external drive, which I can use on later machines. What would an expert do, w/pros & cons.
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paddler
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paddler
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jhanceCommented:
Internal vs. external drives are the same with respect to performance.  On the MAC, the SCSI interface makes it easy.  I'd go for the external even thought it's a bit more expensive and a little more inconvenient taking up additional space.  Installation is much easier.  Be very sure, however, to get a MAC drive.  What's the difference?  non-MAC drives don't come with the "special" software needed to format the drives under MacOS.  They cost a little more than "generic" SCSI drives but MacOS will not recognize a generic SCSI drive.
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paddlerAuthor Commented:
Will an external drive prevent me from having a scanner or zip?
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jhanceCommented:
No, the SCSI bus supports up to 7 devices in total.  Intenal or external, it doesn't matter.
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