Difference between IDE and SCSI ??

Alan Cox alan at lxorguk.ukuu.org.uk
Sun Feb 3 21:35:48 UTC 2008

On Sun, 03 Feb 2008 13:54:26 +1030
Tim <ignored_mailbox at yahoo.com.au> wrote:

> On Sat, 2008-02-02 at 11:57 -0800, Les wrote:
> > SCSI is a serial system, or at least it can be.
> Pardon?  Usually, when one has a data bus for several parallel data
> lines at once, one refers to it as parallel.
> Serial - one data line, that sends bits sequentially.
> Parallel - several data lines, that send bits simultaneously.

Of course its never that simple. Most "serial" busses are actually
multiple wires which send information in parallel..

And nowdays a lot of devices have multiple serial interfaces that are not
clock synchronous with each other to get higher bit rates than parallel
can do.

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