RE: [OT] USB2 on Laptops?

["Roger" <roger@xxxxxxx>]

But remember Pencil&Paper V1.0?

Main difference between USB2.0 and IEEE1394 (aka Firewire, I-Link, etc) is
that USB2.0 is master-slave in operation (ever tried connecting two masters
together?) and IEE1394 is capable of peer-peer transfers - so you can do
daisy-chaining and branching - and you don't need a PC as a master

IEEE1394 also supports isochronous transmissions so can be used for
multiple
audio channels, or multiple MIDI channels without messing up the packet
timing.

And of course IEEE1394b is comming - 3.2Gb/s

Roger Shingler


-----Original Message-----
From: Phil Harris [mailto:phillip.harris1@xxxxxxx]
Sent: 27 February 2002 16:08
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] [OT] USB2 on Laptops?



> Number of USB 2.0 devices, marginal. Number of Firewire
> devices = 100's. Why bother reinventing the wheel?

Cheers Gerard,

The whole point of USB 2.0 is that it is a faster version of USB 1.x and
therefore has an existing base of peripherals without having to
establish one.

USB is a cheap to implement and widely supported interface which will
allow firewire speeds without having to add an extra connector onto a
device

> And how many USB 2.0 devices are there?

At the moment not many but when I bought my Sony VAIO a couple of years
ago I could find nothing except for video cameras to plug into it.

> > Actually I'm with you ... And at the same time what did we
> > need ATA33, ATA66, ATA100 and ATA133 for? Why did we get SCSI
> > 2, Wide SCSI and Ultra 160 SCSI? Yep ... Lets ban progress
> > and stick with exactly what we've got - incompatible niche
> > market interfaces rather than something that has widespread
> > acceptance.
>
> Did I say that? No.

Sorry? It's exactly what you said! That standards should not be built on
and enhanced.

> Shortsightedness? I don't believe in reinventing the friggin'
> wheel. USB 2.0 is almost exactly the same as Firewire. Why
> didn't they devote the time they spent improving USB to some
> other project?

USB 2.0 is not reinventing the wheel - it's enhancing an exixting
specification.

> God you do talk crap.

Ahhh ... I do like a nice reasoned discussion. What do you suggest we do
next? Blow raspberries at each other and call each other names?

Phil



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