Is there a difference between usb and usb 2.0?

[jjohnson at sunrise-linux.com (miah)]

There was an article a bit back on /. about manufacturers labling things at USB 2.0 when it was really 1.1.  I think the key factor is 'fast usb' or whatever its called which is really 2.0.. Its all a big mess..


-miah

On Sun, Dec 21, 2003 at 01:50:54PM -0500, Scott Ehrlich wrote:
> Sorry I missed the original post.
> 
> >From my experience in computer support and BIOS upgrades, the USB port is
> capable of doing whatever BIOS tells it (I believe), just like with IDE >
> EIDE, and parallel ports going from unidirectional > bidirectional, etc.
> The hardware is there.  It is just a matter of what the instructions in
> firware dictate.
> 
> If you can find a BIOS upgrade for your machine (check with the
> manufacturer) which updates the USB code from 1.1 to 2.0 (i.e. faster
> speed), then you, too, can benefit.
> 
> Scott
> 
> On Sun, 21 Dec 2003, Johannes B. Ullrich wrote:
> 
> >
> > From my (limited) experience, USB 2.0 drives will work with USB 1.1
> > laptops. However, the speed will be very slow. USB 2.0 PCMCIA cards
> > usually run $25-50.
> >
> > What kind of laptop is it? Does it have firewire? Maybe another option
> > is to swap the CD drive in the laptop for a used CD-RW drive?
> >
> > Your laptop is most likely USB 1.1. Most laptops until very recently
> > included 1.1 only.
> >
> >
> > On Sun, 2003-12-21 at 13:09, Ken Gosier wrote:
> > > There's a very cool-looking external cd-rw on sale over at overstock.com:
> > >
> > > http://www.overstock.com/cgi-bin/d2.cgi?PAGE=PROFRAME&PROD_ID=570145
> > >
> > > The only problem is: It says USB 2.0. I have a relatively old laptop
> > > (almost 3 years now.) So I'm worried that my usb ports aren't the latest.
> > >
> > > I've read all over the laptop docs, and they just say "usb" w/o a version
> > > number. I also looked over the faq on usb.org, and it also doesn't mention
> > > anything about different versions.
> > >
> > > Are there differnent usb versions? Is this something to worry about? Many
> > > thanks for any help--
> > --
> > CTO SANS Internet Storm Center               http://isc.sans.org
> > phone: (617) 786 1563
> >   fax: (617) 786 1550                          jullrich at sans.org
> >
> >
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