On Thu, Apr 20, 2017 at 8:27 PM, Rob Jarratt <robert.jarr...@ntlworld.com> wrote: > > >> > The bitsavers archive is 267 Gbytes. >> > >> > So at 4.7G per DVD, it comes out to almost 60 DVD's. >> >> That is not totally ridiculous.... >> >> Now, if I want bitsavers on paper tape.... >> >> > > > My back of the envelope calculation comes to approximately > 4 million miles of paper tape.
I think you're out by a factor of 10.... 267*10^9 bytes, divide by 10 as there are 10 bytes to the inch on paper tape, and convert to miles. I get just over 400,000 miles. My rule of thumb is that a full reel of 1" paper tape is 100k bytes So 10 for a megabyte 10000 for a gigabyte 2,670,000 for all of bitsavers. Perhaps nearer 3 million as it's an approximation.... -tony
