Xref: utzoo comp.periphs:3735 rec.music.cd:15895 rec.music.misc:69423 comp.misc:12473 Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!tellab5!lampson From: lampson@tellabs.com (Dave Lampson) Newsgroups: comp.periphs,rec.music.cd,rec.music.misc,comp.misc Subject: Re: card punches for storage Message-ID: <6027@tellab5.tellabs.com> Date: 8 May 91 23:05:20 GMT References: <52905@nigel.ee.udel.edu> <3048@cod.NOSC.MIL> Sender: news@Tellabs.COM Followup-To: comp.periphs Organization: Tellabs, Inc., Lisle, IL Lines: 18 In article er1m+@andrew.cmu.edu (Ethan J. Rasiel) writes: >It seems to me that as far as long-term accuracy, the punch cards would >be most likely to survive the 25-year period. But the question is this: >exactly how many of those cards would be needed to store the equivalent >of one CD? For purposes of calculation, let's say a 45 minute long >album. I hope someone calculates this. And people complain about CDs taking up too much space! It comes to about 5 million cards, without any data compression. What I would like to see is a card reader that could feed 2000 cards a second to provide the realtime D to A. This is assuming you didn't read them in to disk and then replay the data from there. Dave lampson@tellabs.com