nanog mailing list archives
Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network
From: "Michael Painter" <tvhawaii () shaka com>
Date: Tue, 20 Sep 2011 00:29:11 -1000
Randy Bush wrote:
http://ibm-1401.info/A few (dozen) years ago, I was treated to a interesting demonstration where a coworker poured an oily fluid containing tiny metallic flakes on a patch of tape. The "bits" on the tape could be clearly seen by the naked eye, and could be decoded (ever so slowly!) using a magnifying glass.standard ops procedure on those old tapes randy
Yep. The method I was taught (IBM) was to loop the tape into the 'developing' solution container and see-saw it back and forth to make sure the mag. particles were distributed. Pull it out and wait until the medium evaporated. Lay it down and carefully place 'scotch-tape' over the record. Pull the scotch tape up and re-tape it to a white, blank, "punched card".
I still have the adjustable magnifier with the bit areas marked on the reticle.--Michael
Current thread:
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network, (continued)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Jay Ashworth (Sep 19)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Robert Bonomi (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Valdis . Kletnieks (Sep 19)
- old media (was: wannabe isp) Randy Bush (Sep 19)
- Re: old media Roy (Sep 19)
- Re: old media (was: wannabe isp) Christopher Morrow (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Joel jaeggli (Sep 19)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Barton F Bruce (Sep 19)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Henry Yen (Sep 19)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Randy Bush (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Michael Painter (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Chris Adams (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Barry Shein (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network bmanning (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Robert Bonomi (Sep 20)
- RE: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Jamie Bowden (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Jens Link (Sep 27)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Jon Lewis (Sep 20)
- Message not available
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- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Dorn Hetzel (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Jon Lewis (Sep 20)
- Re: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network Dorn Hetzel (Sep 20)