19 Dec
2009
19 Dec
'09
2:12 p.m.
Chuck writes:
On 18 Dec 2009 at 23:47, Alexandre Souza - Listas
wrote:
> I still think that nothing beats SD. It **will** be the standard
> in two or three years.
I'd really like to know that the things will be
available in 10 years
in capacities that will still work what's designed today. Can one,
for example, still get 16MB CF cards?
If all that the unit can handle is FAT32, what does one
do when the
only cards available use exFAT?
Rather than try to decide on the "one right way" to do things
going into the future, don't all of us in fact end up diversifying
into what's available now and then shifting up to new interfaces
over time as they become proven?
I mean, ten years ago I was enamored of MO disks as the "one right
way" of storage. It's not that the conclusion was really wrong, but
that's not the way the majority of the market moved. (I note
that medical imaging still is a big user of MO disks.)
Twenty five years ago I might've decided that DEC RC25 carts
were the way to go. Hah! How wrong would that decision would've
proved to be!
What's most astonishing: what used to fit on 10,000 9-track tapes,
literally filling an entire moving truck, now comfortably fits on a
1 terabyte portable hard drive that is just a little bigger than
pocket sized. That's mind-blowing.
Tim.
19 Dec
19 Dec
2:17 p.m.
At 01:12 PM 12/19/2009, Tim Shoppa wrote:
What's most astonishing: what used to fit on 10,000
9-track tapes,
literally filling an entire moving truck, now comfortably fits on a
1 terabyte portable hard drive that is just a little bigger than
pocket sized. That's mind-blowing.
No, what's really mind-blowing is that they are well below $100.
- John
4 p.m.
On 19 Dec 2009 at 14:12, Tim Shoppa wrote:
Rather than try to decide on the "one right
way" to do things
going into the future, don't all of us in fact end up diversifying
into what's available now and then shifting up to new interfaces over
time as they become proven?
That's nice in theory. But what about as an upgrade to a 30-year old
piece of industrial gear that expects to see at least another 20
years of useful life? Will your upgrade use a medium that will be
available for the next 20 years, when even USB will only be a memory
to hard-core collectors?
What's most astonishing: what used to fit on
10,000 9-track tapes,
literally filling an entire moving truck, now comfortably fits on a 1
terabyte portable hard drive that is just a little bigger than pocket
sized. That's mind-blowing
Yes, and the newest SD cards have a maximum capacity of 2TB--and I
have no doubt that even that will be extended in the future.
What we no longer have is convenient inexpensive storage for modest
amounts of information, say a megabyte or two? Ideally, such a
medium would be read-mostly or write-once and a handful of them would
buy a cup of coffee at your local watering hole.
If I want to write a quick note, I don't need a printer's bale or
even a quire.
--Chuck
20 Dec
20 Dec
1:40 p.m.
New subject: HP91xx controllers (was HP-IB disc drive emulation
On 19 Dec 2009 at 14:12, Tim Shoppa wrote:
For my original suggestion (an HP disk replacement), does it matter?
My idea was to make a box that plugs into the HPIB and pretends to be an
HP hard disk. But using some kind of modern-ish flash memory. I wasn't
even necessarily intending that storage to be user-removeable. In 20
years time when you can no longer get CF cards or SD cards, or whatever,
you grab the firmware sources (that's one reason I'd like the design to be
open), and modidy it for whatever storage you can get then. Much of the
program code would be the same, I suspect.
Several of my (and others here, I guess) old HPs depend on these HP hard
disk units. And while I can fix the controllers and PSUs, they do use
ST412-interfaced winchester drives that I would have problems repairing
(to put it mildly) Hence my desire to find a replacement. An HPIB drive
emulaotr would involve no modification to the host system, it would just
plug in (on the same HPIB as the real HP drives if you want).
Rather than try to decide on the "one right
way" to do things
going into the future, don't all of us in fact end up diversifying
into what's available now and then shifting up to new interfaces over
time as they become proven?
That's nice in theory. But what about as an upgrade to a 30-year old
piece of industrial gear that expects to see at least another 20
years of useful life? Will your upgrade use a medium that will be
available for the next 20 years, when even USB will only be a memory
to hard-core collectors? What we no longer have is convenient inexpensive
storage for modest
amounts of information, say a megabyte or two? Ideally, such a
medium would be read-mostly or write-once and a handful of them would
buy a cup of coffee at your local watering hole.
THis has got me thinking about a related issue, About 20 years ago when I
was an undergraduate, the computers I then owned couldn't read/write any
of the floppy disks commonly used at the university. I generally
transfered data using what I refered to as 'optical WORM tape'. You
know,the 1" wide stuff with 9 holes across it :-).
Now again I can't read or write any of the standard interchange media.
OK, I can read (but not write) CD ROMs if I have to. But not DVD-ROMs.
USB sticks, any of the flash memory cards, and so on. At least I can now
e-mail data to people....
-tony
2:57 p.m.
New subject: HP91xx controllers (was HP-IB disc drive emulationprogramavailable)
What we no longer have is convenient inexpensive
storage for modest
amounts of information, say a megabyte or two? Ideally, such a
medium would be read-mostly or write-once and a handful of them would
buy a cup of coffee at your local watering hole.
It depends.
- SD cards will be around for a long time - 10+ years
- SD cards were sold by billions. With B. So it is pretty easy to find one
at the wild, even at the poorest countries
- SDHC are rectroatively compatible with SD, so if you need a megabyte or
so, you CAN use a SDHC card in place of a SD card. Try it yourself if you
don~t believe me.
I still believe in market dominance by SD simplicity.
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