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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!n8emr!bluemoon!bp1742!bytehead
- From: bytehead@bp1742.UUCP (Bryan Price)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Why isn't ISA dead? Living with ISA...
- Message-ID: <BkXwPB3w165w@bp1742.UUCP>
- Date: Sat, 22 Aug 92 10:46:34 EDT
- References: <1992Aug21.141452.19672@scott.skidmore.edu>
- Organization: Burning Point, Columbus OH 43229-5646
- Lines: 35
-
- pvonk@scott.skidmore.edu (Pierre VonKaenel) writes:
-
- > Many years ago, I began running into the INT problem when istalling
- > more devices in our computers. Namely, not having enough interrupts
- > to use. Since then we switched to microchannel and life has been a
- > breeze. Now I'm considering replacing my personal machine with an ISA
- > bus Dell, but can't shake those old ISA memories out of my head.
- > Question: if I were to go with a SCSI controller (for a HD and in the
- > future, a tape backup, a CD ROM player, and whatever I end up drooling
- > over for the SCSI) will such a SCSI system use only one interrupt? If
- > instead I go with an IDE HD and later add SCSI for other devices, does
- > this combo use two ints (IDE and SCSI)?
-
- The SCSI will only use one interrupt for each host card, and you can
- drive 6 devices off of each host. Yes, the IDE/SCSI combination would
- use two ints.
-
- > Do you netters run into the interrupt shortage on your ISA machines?
- > Or do the newer machines have enough interrupt now to allow more
- > breathing room. (Our old XTs had a limited number of ints, I recall
- > reading that newer ISAs introduced more ints, but am not sure.)
-
- I'm just about out of 8 bit INTs (i.e. XTs), but I've got enough
- 16-bit INTs free that I could fill out the rest of my empty slots and
- still have a few left over. The problem for me is that I want a
- Soundblaster card. I'm full (or will be) in the 8-bit INT department.
- One serial, two parallel, and a bus mouse, and no more 8-bit
- interrupts. So the regular Soundblaster card is out, and I have to
- pay an extra $100 to go with the 16 bit card. So it's not as bad
- as it could be.
-
-
- Bryan L. Price | [ bytehead@bp1742.UUCP ] *Burning Magnesium*
- <Why would I make | [ {n8emr|nstr}!bluemoon!bp1742!bytehead]
- my disc any laimer?> | [ Bryan.Price@p1742.f340.n226.z1.FIDONET.ORG ]
-