Hi Dale, > I can think of only 2 ways an engineer can get those speeds out of a > serial device. A very fast clock or big external buffers. I think DOS > could handle a fast clock but if they use buffers; DOS may not know > how to use them like windows or Linux. I never used SATA so I can't > say. You would be in good position to know.
This is done by hardware and BIOS, so there is no need for DOS to take any effort with it :-) Also, SATA uses low voltage differential signals, allowing indeed very fast serial transmission of bits. All done in hardware. And for SD cards in DOS, you typically have them in USB readers, which are in turn supported by the BIOS, which supports generic USB disk-like media such as USB sticks and USB harddisks and cardreaders. Cheers, Eric ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user