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Article #2029

Re: The Jumperless Pentium Mainboard

#2029
From: Videoman
Date: Mon, 18 Nov 1996 00:00
17 lines
1912 bytes
Guy Barwood wrote:
> 
> Joseph Blackette wrote:
> > BTW, I would lend you a couple of IRQ's but I got some new hardware comin' next
> > week.
> 
> Which makes me think, why the hell are PC's still limited to 15 IRQ's,
> you would have thought 'they' would have added a few more buy now!

Like everything else in the PC's "design", it's a bit screwed up.
Technically, the PC could support 64 IRQs using the same PIC chip that
it does now. The problem is, where do you put the IRQ lines on the bus
connectors? That's a lot of pins.

The future is not hardwired IRQ lines, but a network of connected nodes
for each device. USB is like this, and certainly more to follow.
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References: <55j9q4$dtf@voyager.iii.org.tw> <32825a4d.6217654@NewsServer.cc.monash.edu.au> <32838f5c.910767@news.escape.ca> <32851A7B.7F5E@ix.netcom.com> <328520E4.215D@lehigh.edu> <32865b6a.585145543@news.zip.com.au> <3286A74E.5656@lehigh.edu> <3286F48B.2829@ocean.com.au> <328ab895.871183655@news.zip.com.au> <328BF96B.27BE@ocean.com.au> <1996Nov15.123714@eos.hitc.com> <328D54D3.5B77@ocean.com.au>

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From: Videoman <videoman@tiac.net>
Subject: Re: The Jumperless Pentium Mainboard
Date: 1996/11/18
Message-ID: <3290D06E.38DB@tiac.net>
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references: <55j9q4$dtf@voyager.iii.org.tw> <32825a4d.6217654@NewsServer.cc.monash.edu.au> <32838f5c.910767@news.escape.ca> <32851A7B.7F5E@ix.netcom.com> <328520E4.215D@lehigh.edu> <32865b6a.585145543@news.zip.com.au> <3286A74E.5656@lehigh.edu> <3286F48B.2829@ocean.com.au> <328ab895.871183655@news.zip.com.au> <328BF96B.27BE@ocean.com.au> <1996Nov15.123714@eos.hitc.com> <328D54D3.5B77@ocean.com.au>
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