🚀 go-pugleaf

Fellow netters,
There seems to be some confusion on the issue of controllers. Some of
the questions which have popped out recently (and a few others) are:

	-- which is better IDE or SCSI ?
	-- is it better to have the cache on the controller or in
           memory ?
	-- is a local-bus controller faster then an ISA/EISA one ?
	-- is throughput limited by the controller or by the disk ? 
	-- what is a reliable benchmark for measuring throughput,
	   such that it is not affected (IDE) by the cylinder where 
	   data is read/written ?
	-- why do most OS prefer SCSI ?
	-- what types of cache are implemented on controllers and
           which is best ?
	-- is it better to have a local-bus SCSI controller which
           controls both a HDD and a CD-ROM or a local-bus IDE
           controller for the HDD and an ISA SCSI for the CD-ROM since
	   it is slow and there is no point hogging the bus with
	   long slow transfers? Or maybe some other combination is
           better? 


All answers to the above, and any other helpful information on the
issue will be greatly appreciated. When I have enough answers I will
post a summary.

	Thanks again,
	--Michael.