[geeks] The new IPC/LX, from Dell?

[Lionel Peterson]

On Nov 20, 2009, at 4:32 AM, adh at an.bradford.ma.us (Sandwich Maker)  
wrote:

> " From: Lionel Peterson <lionel4287 at gmail.com>
> "
> " []
> "
> " As I recall, IDE off-loaded much of the controller logic to the  
> host,
> " to a much greater extent than SCSI devices but less than MFM  
> devices.
>
> wasn't it the other way around?  ide moved the isa bus [mfm  
> controller]
> into the drive...

As I recall, IDE was all about cheap drives, and reducing the silicon  
on the actual drive is how they did it.

I *suspect* SCSI interfaces control the drives at a higher level,  
while IDE interfaces deal with the drive at a lower level. When I say  
interfaces I mean the 40 (IDE) or 50-68-80(SCSI) wires between the  
controller and the drive.

Lionel