Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!labrea!agate!pasteur!ames!pacbell!att-ih!ihnp4!inuxc!iuvax!pur-ee!uiucdcs!uiucdcsp!gillies From: gillies@uiucdcsp.cs.uiuc.edu Newsgroups: comp.sys.mac Subject: Re: Hard disks Message-ID: <76000155@uiucdcsp> Date: 18 Mar 88 04:43:00 GMT References: <11173@santra.UUCP> Lines: 10 Nf-ID: #R:santra.UUCP:11173:uiucdcsp:76000155:000:525 Nf-From: uiucdcsp.cs.uiuc.edu!gillies Mar 17 22:43:00 1988 The 40Mb and 80Mb Apple (and CMS) disks are made by quantum. The access time is 26.5ms on these disks. So the 60Mb disk is slower (40ms). In fact, 40ms is "unusually" slow for a 60Mb disk. That's probably part of the reason why they're cheaper. Seagate is the highest-volume manufacturer of sealed hard disks (this from a seagate employee). I think they make more than 1 million disks per month, and have almost half (50%) of the market for hard-disk units. So it is understandable that their drives are the cheapest.