21 Sep
2004
21 Sep
'04
9:35 p.m.
Scanning is mostly done, and it's indexed and on the web at
http://wps.com/projects/LGP-21/Documentation/LGP-21-Maintenance-Training-Ma…
I scanned only the first 50 or so A-sized pages, but all the B-sized
(large) schematics etc are there.
It's missing the memory alignment info, which are in the later pages.
Now that I got the new perl script done (it's not that big a deal, it
was simply a matter of time to complete it) I'll finish scanning
probably this week.
PS: to John Foust (I think it was) that politely reminded me some time
ago of the obvious fact that JPEGs are lossy. I did everything in TIFF
format, but my browser (konqueror) would not load TIFF images! Oddly,
when I hovered the mouse over an image link, it would say on the status
line "/path/etc/foo.tiff (X bytes, TIFF format)" but not display it. So
I had to convert to JPEG, sigh. I have the TIFFs should I stumble upon a
solution.
22 Sep
22 Sep
4:45 a.m.
>>>> "Tom" == Tom Jennings
<tomj(a)wps.com> writes:
Tom> Scanning is mostly done, and it's indexed and on the web at
Tom>
http://wps.com/projects/LGP-21/Documentation/LGP-21-Maintenance-Training-Ma…
Tom> I scanned only the first 50 or so A-sized pages, but all the
Tom> B-sized (large) schematics etc are there.
Tom> It's missing the memory alignment info, which are in the later
Tom> pages. Now that I got the new perl script done (it's not that
Tom> big a deal, it was simply a matter of time to complete it) I'll
Tom> finish scanning probably this week.
Tom> PS: to John Foust (I think it was) that politely reminded me
Tom> some time ago of the obvious fact that JPEGs are lossy. I did
Tom> everything in TIFF format, but my browser (konqueror) would not
Tom> load TIFF images! Oddly, when I hovered the mouse over an image
Tom> link, it would say on the status line "/path/etc/foo.tiff (X
Tom> bytes, TIFF format)" but not display it. So I had to convert to
Tom> JPEG, sigh. I have the TIFFs should I stumble upon a solution.
Try PNG, or even GIF. Either handles line graphics just fine. JPG is
for photos only and will clobber the detail on line art.
Don't feel too bad, there are many supposed professionals who get this
wrong. Just look at the many websites out there that have JPG logos.
paul
23 Sep
23 Sep
4:26 a.m.
At 01:35 AM 9/22/2004, Tom Jennings wrote:
PS: to John Foust (I think it was) that politely
reminded me some time
ago of the obvious fact that JPEGs are lossy. I did everything in TIFF
format, but my browser (konqueror) would not load TIFF images! [..] So
I had to convert to JPEG, sigh. I have the TIFFs should I stumble upon a
solution.
Could have been, I have no memory - but it's something I'd
likely tell someone.
If your image-converting program is smart, it will let you
use a 0..255 grey palette for a GIF. If it's true line-art with
no greys, it'll have better compression with almost any palette
that has a black and a white in it.
And I'm extremely jealous of that computer. :-) It gives me
flashbacks to glorious old '50s junk I'd find in dumpsters or
auctions or rummage sales and disassemble.
- John
9 a.m.
>>>> "John" == John Foust
<jfoust(a)threedee.com> writes:
John> At 01:35 AM 9/22/2004, Tom Jennings wrote:
> PS: to John Foust (I think it was) that politely
reminded me some
> time ago of the obvious fact that JPEGs are lossy. I did
> everything in TIFF format, but my browser (konqueror) would not
> load TIFF images! [..] So I had to convert to JPEG, sigh. I have
> the TIFFs should I stumble upon a solution.
John> Could have been, I have no memory - but it's something I'd
John> likely tell someone.
John> If your image-converting program is smart, it will let you use
John> a 0..255 grey palette for a GIF. If it's true line-art with no
John> greys, it'll have better compression with almost any palette
John> that has a black and a white in it.
GIMP is an excellent program for this sort of thing, and it's free.
It even does GIF.
PNG does this well also.
paul
11:58 a.m.
On Thu, 2004-09-23 at 06:26, John Foust wrote:
re: lossy images
If your image-converting program is smart, it will let
you
use a 0..255 grey palette for a GIF. If it's true line-art with
no greys, it'll have better compression with almost any palette
that has a black and a white in it.
I'm using the PBM tools, so I just made all the tiffs into pngs, which
work fine, and they're uploading now.
And I'm extremely jealous of that computer. :-)
It gives me
flashbacks to glorious old '50s junk I'd find in dumpsters or
auctions or rummage sales and disassemble.
I feel lucky to have it, I can assure you. It's actually the perfect
machine, though architecturally it's a bit bizarre and limited, it's
solid state yet first-generation architecture still. The LGP-30 is far
more complex, electrically and mechanically, plus it's 800 lbs! Other
than the memory and Friden, the LGP-21 is just a bunch of transistors.
It eats 300 watts from the local nuclear or coal station.
(It really is a first generation arch, like the '30; arithmetic only
order set, non-character-oriented, no index register, drum, serial, one
accumulator, though it has hardware subroutine support (barely) with the
R instruction.)
7238
days inactive
7239
days old
4 comments
3 participants
participants (3)
-
jfoust＠threedee.com -
pkoning＠equallogic.com -
tomj＠wps.com