it was left over from a silliness when IBM wrote the bios roms on the AT. they packed h:c:s codes in two 16 bit integers. in thoses days a 5.25 st-506 drive maxed out at 20M. dec is using 19" SMD technology that are maxing in 500M range at the same time. PC technology used to take lots of short cuts like that and the folks were proud of it because they had not experienced anything like dec or the mainframe for that matter remember the 8" floppy was invented by IBM as a way to store and load the microcode on the original Winchester (aka 3030) disk the PC guys take it and use it as a storage device. On Oct 11, 2013, at 6:31 PM, Gregg Levine <gregg.drwho8 at gmail.com> wrote: Hello! Why did the early PeeCees wear 528 Megabyte drives as their largest drives? (This despite the fact that to use it, the early operating systems would also be size confused.) The BIOS the computers wear was problematic. In this case Cory is right, lack of determination. Plus other things. ----- Gregg C Levine gregg.drwho8 at gmail.com "This signature fought the Time Wars, time and again." On Fri, Oct 11, 2013 at 3:54 PM, Cory Smelosky <b4 at gewt.net> wrote: On Fri, 11 Oct 2013, Dave McGuire wrote: On 10/11/2013 02:13 AM, Mark Benson wrote: http://www.artmix.com/SATA_SCSI_AZMN_II_1.html This adapter is available on ebay for $149 and he says they work well in Vaxstations. He also has some which take CF flash cards. Which is great, but again you run in to the snag that I've never seen a SATA disk smaller than 40GB and the upper size limit on a VAXstation is typically 18GB. Somewhat problematic. I have 2 20G laptop SCSI drives... WHY does this keep coming up? There is no such limitation! Lack of determination. -Dave -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects