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Goal of this page
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Provide a list of on-line documents (this or other web sites)
Please note: Users of dial-up lines report troubles accessing Adobe .pdf files larger than about 1 megabytes. The symptom they see indicates file corruption. The "corruption" seems to be time-outs or transmission problems. Adobe employees claim using Reader version 7 is better - or download the whole file first to your system then access it with Adobe Reader. :-(( |
Contents of this page
External Lists of On-Line Documents
On-Line Documents - Museums, Curators
On-Line Documents - Computers in General, Architecture
On-Line Documents - Computers available in era
On-Line Documents - Specific Technology
On-Line Documents - Machine Specific
On-Line Documents - Biographic
Software
Notes on OCRing
Notes from Al Kossow - Grand Champion scanner of computer documents - March 1, 2003
"large format" scanners (sort of look like blueprint machnines)
Generally, they are input devices for xerographic copiers. I have
two different models of Contex units. I finally was able to get the
programming information for them about a month ago.
There are expensive packages available that are targeted at the
image processing required for capture of diazo and blueprints.
for 11x17 and smaller, I use a fairly old Ricoh IS520 40ppm duplex
scanner capable of up to 400dpi 1bpp. It generates compressed TIFFs
which I burst into individual pages, crop the edges, resize to 8.5 x 11
or 11 x 17 (and rotate as necessary) as a batch operation, then verify
the pages look ok and set the file name to the page number of the
document. I then run a program which coverts the TIFFs to a PDF and
adds a bookmark for each page. This is all done on my Mac running OSX
This whole postprocessing step is fairly time consuming. It is about
10x longer to postprocess than it was to scan.
my purpose for digitizing all of my archives has been that it would take
me one one two days to find something I was looking for in the stacks.
everything I've scanned in the past year fits in about 50gb of disc space
If you have comments or suggestions, Send e-mail
to Ed Thelen
Go to Antique Computer home page
Updated March, 2010
- Magnetic core patent list from Rick Gerson
An Wang(Wang Computers) {2,708,722}, Jay W. Forrester(MIT) {2,736,880} and
Ken Olsen(DEC, a former neighbor) {3,161,861}.
U.S. Patent Office
> What are the tools for capturing and viewing larger documents? e.g B,C,D size drawings
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