18 Jul
1998
18 Jul
'98
7:15 a.m.
Thankfully, I was using a T1 at the time I first looked at this page and
didn't notice the size of the images. The first thing you should do is
reduce them from RGB to Grayscale. I tried it and it doesn't reduce
image quality at all. Also, does anyone currently own the rights to
this? I would like to make an HTML and DVI version of it, which would be
much easier to read, since it wouldn't involve as much horizontal
scrolling.
Now, some questions about the computer itself.
A) How much did it cost in 1998 dollars?
B) Was there ever a DIGI-COMP II?
C) What type of plastic was used in it?
D) Has anyone tried to make one?
E) How popular was it?
F) What year was it terminated?
Basically, a brief history.
Due to popular demand, I have finally gotten around to
adding the DIGI-COMP 1 Assembly Instructions to the
collection of other scanned DIGI-COMP 1 manual pages at
http://galena.tjs.org/digicomp/ . They are all 300 DPI
grayscale images - in other words, huge! The parts list
alone (Page 1) should be immensely helpful for those
wishing to create their own DIGI-COMP.
Thanks to everyone who e-mailed me over the past few
days!
Tom
--
This account is used so mailing lists don't
clutter up Tom's real account. If you really
want to talk to Tom, use tom(at)galena.tjs.org
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18 Jul
18 Jul
9:52 a.m.
Thankfully, I was using a T1 at the time I first looked at this page and
didn't notice the size of the images.
I printed out page 1. It brought my SPARC5 w/128Mb to its knees for
several minutes. I did get a good print out of an HP LJ4Si, though.
The first thing you should do is reduce them from RGB
to Grayscale.
Good advice. Also, it's lots of work, but using Photoshop to clean up
the page where there _isn't_ any writing might look a little bizarre
(unless you contoured the erasing to match areas), but it will compress
nicely.
I tried it and it doesn't reduce image quality at
all.
It won't, except for the loss caused by compressing, expanding and compressing
a JPEG file.
Also, does anyone currently own the rights to this?
Edmund Scientific.
I would like to make an HTML and DVI version of it,
which would be
much easier to read, since it wouldn't involve as much horizontal scrolling.
I didn't try to read it on the screen. I printed it. Eventually.
Now, some questions about the computer itself.
A) How much did it cost in 1998 dollars?
I do not know how to scale inflation off the top of my head, but I think it
cost $5.95 in 1969.
B) Was there ever a DIGI-COMP II?
I have heard of one, but not seen one.
C) What type of plastic was used in it?
White polystyrene, IIRC, like that used in model airplanes, approx .75mm thick.
D) Has anyone tried to make one?
No, but I've manufactured missing wire parts for one. It's harder than it
sounds. It would have been easier if I'd had a bending jig, not pliers.
E) How popular was it?
Boy... unless you mean exact numbers sold, I wouldn't know how to answer
that one. In any case, I don't know how many were made.
F) What year was it terminated?
1969?
-ethan
9502
days inactive
9502
days old
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