> The problem with putting floppy images on a DVD is that if you lose
> or destroy that DVD you lose a ton of data
Well, rule #1 is never have a single copy of backup data.
Rule #2 is have an off-site copy.
That single DVD is going to be a heck of a lot easier to migrate
to the next generation of media than trying to re-read those floppies
again (if they are still even readable).
A single copy of something on aging media is a problem I face at CHM.
It's what I call a 'latent archive'. If you don't actually RECOVER the
data on an old tape or disk, you can't be assured that you actually
have anything other than the physical object.
The unit that seems most commonly available is branded "Ion" and
comes with a USB link built in.. specs for it sound like a fairly
good "consumer" grade turntable. There is also a device available
that takes a turntable preamp signal and converts it to digital audio
on a USB link. Thus allowing those of us with audiophile grade
units to continue using them....
steve shumaker
At 09:44 AM 2/7/2007, you wrote:
>Please, if you know a source of good stuff like this let us know.
>
>My wife's got a ton of LP's that haven't come out on CD... and they never
>will.
>Kind of be nice to play them instead of just collecting them.
>
>Bill
>
>On 2/7/07, Cameron Kaiser <spectre at floodgap.com> wrote:
>>
>> > Anyway, this is the big reason why you can, with looking, still buy a
>> > turntable to play your records.
>>
>>In fact, I just bought my folks a USB turntable (i.e., a turntable with a
>>built-in USB Audio output) so that they could start digitizing their old
>>LP catalogue. I imagine, though, with the way they care for their LPs that
>>they may outlast whatever CD-Rs they make of them.
>>
>>--
>>--------------------------------- personal:
>>http://www.armory.com/~spectre/ ---
>> Cameron Kaiser * Floodgap Systems * www.floodgap.com *
>>ckaiser at floodgap.com
>>-- Adore, v.: To venerate expectantly. -- Ambrose Bierce
>>----------------------
Christian Corti writes:
> I have some Synertek 2650-P-01 (date code 7720) that
> are definitely *not* 2650 CPUs, along with some
> AMI 1315-P-2 (seems to be some kind of keyboard
> encoder). They come from some old Courier 270
> display terminals. So what's a 2650-P-01 ?
Synertek made character generator chips (really mask ROM)
and LSI video scan generators that commonly appeared
in 70's devices. Doesn't help narrow down what was
in that terminal, but the point is they did a lot of stuff
for that market (including CPU's in the first microprocessor
terminals).
Didn't somebody from that era at Synertek talk at VCF
East last year?
Tim.
I hate to re-open a common thread, but I've tried both Goo-Gone and a
hair drier to remove old labels from diskettes, and it hasn't gone well:
Hair drier: I have to heat the disk so much that I warp the jacket if
I'm not careful. Way too much work (5+ minutes of low heat) per disk.
Goo-Gone: doesn't appear to penetrate the paper of the label! I mean,
it does, but I have to apply it twice (both times with my finger,
otherwise the cloth soaks up too much)... and only then does it
marginally work. But worse, what's left over is some petroleum-ish film
that I can't remove, even with soap and water. Check the following photo:
http://www.oldskool.org/misc/residue.jpg
So I wonder how well a new label will stick with that film on it...
So, are there any other alternatives? Or am I incredibly inept and
missing a step or botching a procedure?
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
> There's a wire-wrap machine of some sort on Ebay
This is a semi-automatic unit.
A from-to list is generated on a computer with lengths
and the unit moves to the start-end points. The manual
wire-wrap gun sits in the slot that the table moves to.
Don't see the wire bins.. Normally a light would appear
next to the bin to pull the wire from.
arcarlini at iee.org wrote:
> It is rare that they fail completely (they usually slowly develop
> errors over time in heavy use until you have to replace them). But
> let me tell you, if you get the one rare one that does fail, it fails
> SPECTACULARLY. As in, it takes the drive with it!
I've had one CD-R shatter and the drive was indeed unusable after that.
I tried to repair it, but after an hour of clearing bits out and putting
the thing back together, testing, dismantling, rinse, lather, repeat
I decided it wasn't worth the hassle. I still have it in case I
magically
run out of CD drives in some far distant future ...
Antonio
-------------------------------------------------------
One of the last projects we did at Philips US, was a study to see how fast
we could spin the disk before it shattered. A friend of mine, a mechanical
engineer, did the testing. He had a blast. It was like a mini version of
Mythbusters. Even had the high speed television camera.
To accelerate the process he would often nick or chip the edge of the inner
hole. When they split - literally - it was right through the front door of
the drive. He finally got his own lab so the rest of us would feel safer.
But what a fun job he had! He loved his work.
Billy
aliensrcooluk at yahoo.co.uk wrote:
I remember CD caddies :)
I recall back at secondary school in my first
year there (year 7 for UK'ers), in 1990/1, that
the new computer in the library used CD's
which were in see through plastic.
Essentially the "CD" of the time was like
floppy discs - the writable media (medium?)
was encased in protective plastic shell.
I haven't seen any like that ever since.
I don't suppose anyone on this list has any
like that?? If so, I'd love to see a picture of
it, please.
Regards,
Andrew D. Burton
----------------------------------
I have a couple at home but can't get to them right now. If you want, I'll
write myself a tickler note and send you one the next time I come across
them. Also see them in the flea markets occasionally.
Billy
aliensrcooluk at yahoo.co.uk wrote:
Woah...
I thought CD's were invented in 1982?
I remember it easily as thats the year my
younger brother was born.
Or was that the year they first came to the
UK/Europe??
Regards,
Andrew D. Burton
--------------------------------------------
CDs were being developed for more than a decade before they became
commercial products. When I worked at Philips in the Optical Storage Group,
I made several trips to the Philips labs in Eindhoven. There, Philips has
displays of many of the original CD's and players, a few still working. It
also gave me a chance to talk to some of the original engineers, at least
the few who haven't retired by now.
Going commercial with the new technology was a hell of a battle for Philips
and later Sony. It was not instantly embraced.
Billy
Hi
The one I'm looking for was made at a similar time but about
a year later was made by Diehl and sold here in the US by
SCM. It was also transistors and it used two delay lines.
It booted from a metal tape with two rows of holes. I assume
clock and data.
It had a connector that was suppose to be able to read punch
cards. It could store a program of about 60 steps.
I used one of these years ago but I don't recall if it had
conditional flow. I think most people would consider conditional
flow to be the defining line between a calculator and a
computer. At least from the users point of view.
No one would dispute that the guts of these calculators were
computers.
Dwight
>From: Scott Austin <us21090 at yahoo.com>
>
>I like the looks of the Olivetti Underwood Programma 101. It even had two
>blinky lights: green (solid=ready, blinking=busy) and red (error)
>http://www.silab.it/frox/p101/boxbig.gif
>
>If I recall correctly it was the first computer(*) I programmed. Back in
>'72-73, while in Jr. High (btw, not "Middle School").
>
>Several interesting things about the P101:
>
>Introduced in 1965 (same year as PDP-8).
>
>No ICs; all discrete components. The boards were placed component side to
>component side, designed with one board's components fitting in the spaces
>between the components of the other board.
>
>Programs were stored on magnetic cards, which Olivetti received patents for
>(HP had to pay about $900K in royalties for the technology use in the
>HP9100)
>
>Its approximate 240 bytes of memory used acoustic delay line technology.
>
>Scott Austin
>
>(*) Computer? Programmable Calculator? I'll let someone else debate about
>this.
>
>
>
>
>
>
>
>____________________________________________________________________________________
>Looking for earth-friendly autos?
>Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center.
>http://autos.yahoo.com/green_center/
_________________________________________________________________
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--- arcarlini at iee.org wrote:
> Jim Leonard wrote:
**>> snip <<**
>
> I'd like to read up on DVD technology too but I've
> not been able
> to locate much (I'd like to read the various
> standards that
> detail the physical layer and so on, not some
> non-technical
> overview - I can find plenty of those.)
**>> snip <<**
>
> Antonio
>
Yeah, me three.
I'd like to know what the difference is between
a writable (write/rewrite) CD/DVD and
ordinary ones.
How do you "write-protect" a CD/DVD??
This would be useful knowledge, especially
when I get a DVD-recorder (sometime this
year).
Regards,
Andrew D. Burton
aliensrcooluk at yahoo.co.uk
