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To: Jim McMannis who wrote (62611)8/17/1998 9:48:00 PM
From: d[-_-]b  Read Replies (2) | Respond to of 186894
 
Jim, RE: But doesn't scsi allow for daisy chaining outside the box and is faster than USB?

Come on Jim, isn't a V8 a cool thing for a lawn mower too.

It's about bandwidth and a unified or atleast simplified connectors. SCSI is a waste for handling keyboard input as is Firewire. Yes SCSI can be daisy chained up to 7/14 devices depending on whether it's wide SCSI or not.

Perhaps you missed the part about USB is not for storage devices that means hard disks, cdroms, etc. Firewire will be used for storage devices, but you kind of need drive makers to sell the things, but they kind of need computers that are Firewire ready. Note we've had USB in shipping machines for nearly two years, only now are we starting to see real USB devices and Win98 with the (native) drivers to glue it all together.

USB allows 127 devices SCSI maxes out at 14.



To: Jim McMannis who wrote (62611)8/17/1998 10:55:00 PM
From: StockMan  Read Replies (1) | Respond to of 186894
 
Jim,
Re -- SCSI and USB.

They are two different things. SCSI is a much much faster parallel bus (disks, scanners etc..) and very expensive. USB is a low cost (really cheap, similar to the COM ports) serial bus with a max bandwidth of 12Mb/sec (low).

SCSI can be daisy chained provided it is not terminated within the box. USB on the other hand has a "network" architecture with peripherals (126) connected in different configurations (star etc..) via hubs.

Stockman



To: Jim McMannis who wrote (62611)8/17/1998 11:01:00 PM
From: Steve Porter  Read Replies (1) | Respond to of 186894
 
Jim,

SCSI adds significant cost to each device as well (say at least $50 for the end user). USB's end user costs is usually pretty close $1 or $2 to the cost of a parallel port.

Don't forget SCSI is eventually going to be phased out for firewire (IEEE 1394 as it is officially known)

Steve