On Thu, Aug 21, 2008 at 01:53:07AM -0400, der Mouse wrote: > >Sure. I'm perfectly willing to pay extra to get various useful >features, from expansion slots to onboard audio to...parallel ports. > >Except, of course, that with expansion slots and onboard audio, I have >those choices, whereas with parallel ports, I don't. How much are you willing to pay for them? If in quantities of 100,000 it adds $1 to the cost of the board, which translates to $5-$10* at the computer store, I'm sure you and a hundred other people in the world would buy one. If it adds $50,000 to the cost of the board you wouldn't. That's a reasonable estimate of the cost of taking an existing board design and adding a parallel port to it. Including engineering, documentation, product verification, manufacturing, packaging, delivery, etc. So you would hope that the manufacturer of the boards can sell enough of them to spread it out over a reasonable number of boards sold and only charge you a reasonable price. Do you think that someone like Asus could sell 1,000 with a parallel port? Would those 1,000 people be willing to pay the $50 plus markup to get one? Would you, in order to keep costs down, be willing to buy them from the factory in Tiawan? Every time another level of wholesaler/retailer gets involved the price goes up. Just as a point of discussion, remember Mr Bill's Replica I? It required a lot of engineering to make it work the way an Apple I worked, with chips that are now current prodution, because the original chips were no longer avaialble. At what point does it become impossible to source the chips? Or more importantly when does it no longer become possible to connect them to the CPU. As an example all those bus master SCSI, IDE and video controller chips from the 386/486 days won't work on a modern computer no matter what you do. You might be able to connect them to a bus, but they are limited to 16 megabytes of memory. Windows 95 and Linux version 1 had device drivers that would compensate, but does Vista or Linux 2.6? Could they still be written? If so, by whom? Geoff. * If they sell these boards as part of their regular stock, it would add about $5, if they have to special order one for you, it would double that and they may tack on special order fees, delivery charges, etc. -- Geoffrey S. Mendelson, Jerusalem, Israel gsm at mendelson.com N3OWJ/4X1GM