Recovering the ROM of an IBM 5100 using OCR (among other things)

Al Kossow aek at bitsavers.org
Thu Jun 27 10:37:51 CDT 2019


It is true. Inter-block gaps are huge and easy to spot/splice.
That is why writing short tape blocks wastes so much tape.

On 6/27/19 8:21 AM, Warner Losh via cctalk wrote:

> I've also heard people tell stories of using this fob to find the end of
> the marks and records on mag tape to splice together tapes that had become
> broken and ruined (so they'd cut the damaged records out at record
> boundaries to recover at least some of the data on ANSI formatted tapes). I
> don't know if this was a tall tale designed to impress over a beer, or the
> sad confessions of someone that had gone through a lot of pain and needed
> to share...
> 
> Warner
> 



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