At 12:06 PM 6/7/99 +1000, you wrote:
>Hi,
>
>Though I'd add my AU$0.20 in favour of a USB based design;
>
>- Allows multiple devices/interfaces without IRQ/DMA hassles
> or the need for power supplies.
>
>- Suits both fixed and mobile users.
>
>- Kernel support for USB is maturing at a rapid rate.
>
>- Reasonable bandwidth (12Mbit/S or so ?) should allow lots
> of low speed interfaces whilst leaving room for those
> wanting to use megabit data rates.
USB defines that devices connected to it may only use 60 % of the
available bandwith.
Total USB bandwith 12Mbit/s:
2 Mbit/s used for controlling usb & devices
10 Mbit/s bandwith for connected devices
Only 60 % of the 10 Mbit/sec may be used by one USB device witch leaves us
with 6 Mbit/sec.
So very high speed interfaces are not possible IMHO.
>
>- Suits non-PC users (I'm contemplating an Apple Powerbook
> to replace my (x86) Toshiba) PPC linux is becoming
> a more pervasive as more and more Macs are running Linux.
>
>- Doesn't rule out older machines as aftermarket USB cards are
> available, granted they're not yet mainstream.
>
>- As has been mentioned by others - ISA is rapidly
> dissapearing.
>
ON1DPD - Luc Van Hoeylandt
