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New Scan "Understanding OSI Floppy Disk System"

Posted: Mon May 13, 2019 8:57 pm
by tanteju
I've cleaned up some old moving boxes from some decades ago. Was about to throw them unopened away, because do you really need something in a moving box you have not touched for 30 years?

I've found this booklet and scanned it for Dave.

Maybe someone finds it interesting.

Update: Could not upload the 27 MB scan. Fixed.

Re: New Scan "Understanding OSI Floppy Disk System"

Posted: Tue May 14, 2019 1:58 am
by MK14HAK
Thanks for this tanteju. However the document is barely readable. Is there an issue with your scanner ...

Re: New Scan "Understanding OSI Floppy Disk System"

Posted: Tue May 14, 2019 3:25 am
by nama
That's great, but as Mike mentioned, quality is lacking.

Re: New Scan "Understanding OSI Floppy Disk System"

Posted: Tue May 14, 2019 6:49 pm
by tanteju
I see it. That's the result from compression. The original 28MB file is readable.
If someone could download it here https://www.dropbox.com/s/fjs4hxxdm5d38 ... e.pdf?dl=0 and post on the page.

Re: New Scan "Understanding OSI Floppy Disk System"

Posted: Thu May 16, 2019 7:30 am
by Mark
Here is a converted monochrome version about the same size (1.6MB) that may be more legible.
I increased the DPI, sharpened, converted to 1bit & compressed in PDF with CCITT compression, all with the power of XNView. I think it gets a little muddy, but its not too bad for the size.

Thanks to tanteju for the original!

-Mark
1982 OSI Floppy Interface1.pdf
(1.64 MiB) Downloaded 1170 times

Re: New Scan "Understanding OSI Floppy Disk System"

Posted: Thu May 16, 2019 8:23 pm
by waltermixxx
looks great, thanks for the effort. :) definitely a good balace of quality and size. :)
very much appreciated. :)