CompuServe Messages

I read the replies, but I think this may be clearer for you, Richard: In my experience SCSI 2 devices WILL work on regular SCSI board – it just won't achieve its maximum performance unless it has a real SCSI 2 interface board and appropriate driver software. Full height is 3.2 inches high (almost always a 5.25 inch width) Half height is 1.6 inches (typical 3.5 inch hard drive) Third height is 1 inch (newer 3.5 inch hard drives, also known as 'slim') Quarter height is the height of the 2.5 inch wide hard drives. Typically older hard drives (and some newer huge capacity ones) are 5.25 inch width, 'full height'. Technology advanced and drive makers squeezed capacity into 5.25 width, 1.6 inch height and 'half' height drives were born. Then the 3.5 inch width drives came out, all in 1.6 inch height. More recently the 'slim' 3.5 inch drives arrived and most recently the 2.5 inch babies you put in the Amiga 600 or 1200 and they are known as 'quarter' height. Amazing now that you can get 1Gig in a 'slim' 3.5 inch wide drive! Hope that helps.