Let's develop an open-source media archive standard

Vintage Computer Festival vcf at siconic.com
Fri Aug 13 20:16:47 CDT 2004


On Fri, 13 Aug 2004, John Lawson wrote:

>    Lets say that the Paper Tape is in ASCII format, then each character is
> a Byte - and that the Reader is a fairly advanced optical device running
> at a conservative 1200 bytes per minute.
>
>   2000 GB (2 TB) is 2*10^12
>
> so (2*10^12)/1200 = 1.66666667*10^9 minutes to read 2 TB
>
>               /60  = 27,777,777.8   hours
>
>               /24  =  1,157,407.41  days
>
>              /365  =  3171          years
>
>   presupposing a Really Good reader that could operate that long w/out any
> maintenance or downtime.... probably Sellam has a couple of these on his
> Shelves.

If someone can punch me a 2TB tape then I'll be happy to set it in motion
and we'll check on it in about 3K years.

>    NOW:  10 KB of 5-mil thick punched paper tape on a 3/4-inch hub with a
> punch width of .060 and an inter-character width of .060 makes a diameter
> of....  oops my brain just exploded - sorry.

It's all sticky!

-- 

Sellam Ismail                                        Vintage Computer Festival
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