Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!usc!apple!amdcad!brahms!phil From: phil@brahms.amd.com (Phil Ngai) Newsgroups: comp.arch Subject: Re: CD-ROM documents (was Paperless Office) Message-ID: <1990Dec7.020857.18469@amd.com> Date: 7 Dec 90 02:08:57 GMT References: <1990Dec5.105743.25693@actrix.gen.nz> <1990Dec6.154348.5206@d.cs.okstate.edu> Sender: usenet@amd.com (NNTP Posting) Organization: Advanced Micro Devices, Inc; Sunnyvale, CA Lines: 20 In article <1990Dec6.154348.5206@d.cs.okstate.edu> norman@d.cs.okstate.edu (Norman Graham) writes: |But suppose we reverse the situation and use a constant rotation speed |(i.e. constant angular velocity (CAV)). Then the distance between |transition A and transition B becomes a more complex problem. Remember Well, you ought to know that in the magnetic storage field, there are lots of products being shipped with more bits stored on the outer tracks than on the inner tracks, and they have very good seek times. I just saw a Seagate 89 megabyte IDE disk drive with Zone Bit Recording (ZBR) technology. It ranges from 44 sectors/track to 30 sectors/track. I assure you they are NOT varying the angular velocity! This kind of thing is both quite doable and is being done, in volume, at low cost. It is certainly more complex but that does not mean it can not be put into production in commodity products, it just means you need clever engineers to develop it. -- There is no right more fundamental than self-defense. Brought to you by Super Global Mega Corp .com