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- From: "Florian Faber" <faber@faba.han.de>
- Date: Tue, 02 Apr 1996 11:45:37 +0100
- X-NewsReader: IntuiNews 1.3a (7.9.95)
- Subject: Re: EIDE vs. IDE , was: Reports from CeBit
- Message-ID: <65825542@faba.han.de>
- Organization: watzmann softwerk
-
-
- DH> >The SCSI-3 SBP and IEEE 1394 go hand-in-hand. This would be a) a lot
- DH> >faster
- DH> Not really. The fastest IEEE 1394 defined to date is 400mb/s, which is
- DH> 50MB/s if you don't lose anything from overhead. A 16-bit Fast20 runs
- DH> at 40MB/s.
-
- How many devices are possible with Fast20? (rhetorical question)
- And you mix up 16-bit Fast20 and 8-bit Fast20 in your argument.
- If we take 8-bit Fast20, which costs less than the currently available
- 1394 first silicons, you don't have 40MB/s.
-
- DH> >b) much cheaper than Fast-20,
- DH> Fast20 controllers aren't that much more expensive than plain old
- DH> SCSI-2. That's basically because the technology for these rates has
- DH> been there a long time, it was more a matter of formality to define
- DH> the faster protocols. Similarly, drives are a little more expensive.
-
- What about the differences in device interface? In most cases, the device
- interface can be much simpler with 1394. I don't just talk about hard
- drives.
-
- And you need the connectors for Fast-20. You need the connectors inside,
- you need terminators, you need board space, you need an external connector
- etc. Do you want to say that all of this is cheaper than an interface that
- also has the ability to substitute other interfaces than SCSI?
-
- Of course the old interfaces can't be substituted completely.
-
- DH> Right now, an IEEE 1394 chip costs more than twice that of a Fast20
- DH> SCSI chip, not to mention complete boards (someone on comp.sys.be
- DH> today was complaining that no IEEE 1394 boards are out for under
- DH> $1000, today, even though the TI chipset costs about $80).
-
- This are the first silicons. And what's the $80-quantity?
-
- DH> > and c) pretty easy to use.
- DH> No doubts here. SCSI was never defined as something consumers should
- DH> be mucking around with. Fast20 is even nastier than SCSI-2, less
- DH> forgiving to the wrong hookups, and you had better use shielded cable
- DH> if you're going very far. In time, 1394 will cost less, IF it manages
- DH> to catch on in the consumer market.
-
- Hopefully. I think they're on the right way. On the IFA in Berlin will be
- the first Set Top Boxes with 1394, and if YAMAHA does it right, 1394 will
- become the MIDI successor. So with *one* 1394 interface you can at least
- connect to interactive TV and music devices.
-
-
- Flo
-