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Even then, using USB devices WITH drivers beat the hell out of configuring IRQ and DMAs. I remember the ordeal it was when you wanted to add or change something
by saganus 13y ago
Even then, using USB devices WITH drivers beat the hell out of configuring IRQ and DMAs. I remember the ordeal it was when you wanted to add or change something and you had conflicting IRQs... pfff..
- julie1 13y agoBecause a perseverance in being stupid made the choice of a long series of bad choices. Motorola 68K and specialized high quality embedded units? (like amiga): no it will be overprices compared to the cough future price of an evolutive PC. Which final form are below average quality and overpriced embedded devices. Had you followed the way of the old wise and chosen motorola architecture, you would not have theses problems. :)
- rbanffy 13y agoThose old enough will remember the Apple II and its fully decoded, addressable expansion slots. Each slot with specific addresses for memory mapped IO and space for a small firmware (to boot a disk, output characters to a second screen and so on). The IBM PC looked remarkably primitive in comparison.
- jdboyd 13y agoWhen PCI replaced ISA (which was prior to USB taking off), dealing with IRQs and DMAs was a thing of the past, making that a poor reason to say USB is superior.
- saganus 13y agoUhmm... I guess you are correct. I indeed remember going from PCI to ISA. Also to AGP! oh my.. the speed of that thing. But I think the point still stands, maybe not that much with that specific example, but how about PS/2 keyboard and mice? Woops... disconnected the mouse/kb by mistake? off you go rebooting the computer. I think that does indeed make it a good reason to say USB is superior.