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On Sun, 12 Apr 1998 13:37:54 +0200 (MEST), Christoph Eyrich wrote: >On Sat, 11 Apr 1998, Patrick West wrote: > >> I thought the old MCA laptops just used a 2.5 scsi drive? > >No, definitely not (there were just a few laptops using scsi hard drives, >e.g. the Tadpole). Actually, IBM's Power ThinkPads used 2.5" SCSI HDs too. It's a shame there aren't more SCSI notebooks, because the speed difference is amazing when running a lot of stuff. The 700, as the 720, the other IBM MCA machine, uses >ESDI - too expensive to buy a new HD unless you get a used one. The >controller is integrated into the disk drive. > That sounds about right. Additionally, IBM had some ESDI drives, at least on the PS/2's, which connected straight to the bus, so there was no controller card, and things really became proprietary. In fact, the connector to a standard ESDI HD is the same as on an MFM drive. -- Paul Khoury | <pkhoury@loop.com> | Sent from my P75 Server Proudly running OS/2 Warp 3/4, Slackware Linux, and Sun Solaris 2.4