leeyang wrote:
>
> I always notice that when mentioned embeded hardware,"pc104" is talked >
> about.Howerver I have no idea.Is it a kind of keyboard?
One of the features of PC104 , which may not be obvious, is the fact
that you can build up a system without a backplane.
You can get low power integrated single board systems that just need
a 5 volt power supply.
When you want to add serial, digital and analog I/O you can buy low cost
boards that simply plug into each other.
There is an ISA bus distributed through a special stackable connector.
You can stack about 5-8 boards in this way.
The wiring can be somewhat messy but it provides a very low cost control
system.
PC104+ also adds a PCI bus through a second connector.
I don't see as many of these around but I have used both.
Hope this helps
Phil Wilshire
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