Jacob and Matthew,
Thank you so much.
I can now hold my own, I feel empowered.
I new to being blind, and could not survive at work without this website
and your knowledge and help.
Many thanks
niamh
----- Original Message -----
From: "Jacob Kruger" <jac...@mailzone.co.za>
To: <blind-computing@jaws-users.com>
Sent: Wednesday, March 30, 2011 5:18 PM
Subject: Re: [Blind-Computing] USB 2 and 3 what are they?
From the Wikipedia page relating to USB (universal serial bus):
http://en.wikipedia.org/wiki/Usb
under the history heading:
"The original USB 1.0 specification, which was introduced in January 1996,
had a data transfer rate of 1.5 Mbit/s.[5] The first widely used version
of USB was 1.1, which was released in September 1998. It allowed for a 12
Mbit/s data rate for higher-speed devices such as disk drives, and a lower
1.5 Mbit/s rate for low bandwidth devices such as joysticks.[6]
The USB 2.0 specification was released in April 2000 and was standardized
by the USB-IF at the end of 2001. Hewlett-Packard, Intel, Lucent
Technologies (now Alcatel-Lucent), NEC and Philips jointly led the
initiative to develop a higher data transfer rate, with the resulting
specification achieving 480 Mbit/s, a fortyfold increase over the original
USB 1.1 specification.
The USB 3.0 specification was published on 12 November 2008. Its main
goals were to increase the data transfer rate (up to 5Gbps), to decrease
power consumption, to increase power output, and to be
backwards-compatible with USB 2.0.[7] USB 3.0 includes a new, higher speed
bus called SuperSpeed in parallel with the USB 2.0 bus.[8] For this
reason, the new version is also called SuperSpeed.[9] The first USB 3.0
equipped devices were presented in January 2010.[9]"
Jacob Kruger
Blind Biker
Skype: BlindZA
'...fate had broken his body, but not his spirit...'
----- Original Message -----
From: "Matthew C" <matthew.care...@gmail.com>
To: <blind-computing@jaws-users.com>
Sent: Wednesday, March 30, 2011 5:10 PM
Subject: Re: [Blind-Computing] USB 2 and 3 what are they?
I believe it has something to do with the speed of transmition of data.
2.0
would be slower than say 3.0.
-----Original Message-----
From: blind-computing-boun...@jaws-users.com
[mailto:blind-computing-boun...@jaws-users.com] On Behalf Of Niamh
Sent: Wednesday, March 30, 2011 9:14 AM
To: blind-computing@jaws-users.com
Subject: [Blind-Computing] USB 2 and 3 what are they?
Sorry to be useless here, but people keep throwing these things at me at
work, and I haven't a clue what they are talking about.
Because we are security conscious we have to back up certain files to
off-line hard drives.
Now people are talking about USB 2 and 3, what does this mean?
Niamh
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