T
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OT: In 15 years, hard drives will seem as quaint as reel-to-reel tape recorders
R
Rod Speed
Tommy Grand said:All operating systems will be stored in MRAM:
Fools have been claiming that for decades now.
Hasnt happened and it wont this time either.
J
John
Rod Speed said:Fools have been claiming that for decades now.
Hasnt happened and it wont this time either.
When I read the article I couldn't help thinking about core stores.
Am I showing my age?
A
Andrew Gabriel
When I read the article I couldn't help thinking about core stores.
or bubble memory.
Am I showing my age?
Me too ;-)
R
Rod Speed
And what stores the OS is a tiny part of total storage anyway.
Yes. You should do the decent thing and top yourself forthwith.
When I read the article I couldn't help thinking about core stores.
Am I showing my age?
Yes. You should do the decent thing and top yourself forthwith.
V
VWWall
Do you recall programming them by running a wire through them?John said:When I read the article I couldn't help thinking about core stores.
Am I showing my age?
F
Folkert Rienstra
Do you recall programming them by running a wire through them?
Does nipping off severeal dozen diodes on a PDP8 bootcard count?
R
Rod Speed
Does nipping off severeal dozen diodes on a PDP8 bootcard count?
Wota wimp, those came later, some of us memorised the
boot loader and toggled it in thru the front panel switches.
And those diode boards aint magnetics anyway.
T
Toom Tabard
John said:When I read the article I couldn't help thinking about core stores.
Am I showing my age?
Could be !
I remember when my PDP11 with RT11 got upgraded from 32K to 64K, I
wondered what I'd do with all that extra space for my programs.
Toom
T
Toom Tabard
John said:When I read the article I couldn't help thinking about core stores.
Am I showing my age?
Could be !
I remember when my PDP11 with RT11 got upgraded from 32K to 64K, I
wondered what I'd do with all that extra space for my programs.
Toom
D
Derek ^
Do you recall programming them by running a wire through them?
I didn't do it myself but I've worked with WANG 600 calculators which
had the OS in a manually assembled ferrite ROM.
http://www.oldcalculatormuseum.com/wang600.html
DG
M
Mike Redrobe
Derek said:I didn't do it myself but I've worked with WANG 600 calculators which
had the OS in a manually assembled ferrite ROM.
http://www.oldcalculatormuseum.com/wang600.html
...and not all that slow, apparently it could do factorial 69 in about 1
second.
Try pressing 69 x! on your pocket calculator, and its slower...!
C
chrisv
Toom said:I remember when my PDP11 with RT11 got upgraded from 32K to 64K, I
wondered what I'd do with all that extra space for my programs.
Toom
I'm guessing you just wrote everything twice! 8)
G
gfretwell
Disk drives have the same advantage that core had. It was persistantWhen I read the article I couldn't help thinking about core stores.
Am I showing my age?
after a power failure. Back in the old 1401 or 360 days a well written
program could be restarted with the power on and "set IC button (or
PSW restart in the case of 360).
There is something reassuring about bits in oxide.
R
Rod Speed
I didn't do it myself but I've worked with WANG 600 calculators
which had the OS in a manually assembled ferrite ROM.
Microcode, actually, it doesnt have an OS.
A
Al
chrisv said:I'm guessing you just wrote everything twice! 8)
For a programming class, I wrote a program in PDP11 assembler to play
"The Game of Life." It ran in an emulation on a Dec-20. Did you ever see
the game of life printed out on a teletype? That was fun!
BTW, reel-to-reel recorders are being used for long lasting backup.
Nothing else does as well except maybe hieroglyphics ;-)
Al
A
Andrew Gabriel
Disk drives have the same advantage that core had. It was persistant
after a power failure. Back in the old 1401 or 360 days a well written
program could be restarted with the power on and "set IC button (or
PSW restart in the case of 360).
There is something reassuring about bits in oxide.
One of the first mini-computers I worked on was a GEC 4080
with core store. You could turn that off and back on again
with several people logged in, and it just carried on.
The only indication you got that this had happened was:
!!
output on the terminal, to warn you that any incompleted
line you were typing in on the terminal had been lost from
the terminal controller. No one was logged out, or had
their running commands interrupted.
G
gfretwell
BTW, reel-to-reel recorders are being used for long lasting backup.
Nothing else does as well except maybe hieroglyphics ;-)
There are some optical disk solutions that are supposed to last 100
years or longer. The problem is the machine that reads them won't.
Open reel tapes have a print through problem and after a couple
decades they will usually be useless. Again, the real problem might
be finding a machine that reads that tape. Not a lot of 7 track tape
drives around but I imagine you can still find 9 track units that
could read NRZI.
R
Rod Speed
BTW, reel-to-reel recorders are being used for long lasting backup.
Nothing else does as well except maybe hieroglyphics ;-)
Oh bullshit. Plenty of stuff written on paper etc has lasted a hell of a lot longer
than magnetic tapes ever will. In spades with being able to read it for centurys.
A
Al
There are some optical disk solutions that are supposed to last 100
years or longer. The problem is the machine that reads them won't.
Open reel tapes have a print through problem and after a couple
decades they will usually be useless. Again, the real problem might
be finding a machine that reads that tape. Not a lot of 7 track tape
drives around but I imagine you can still find 9 track units that
could read NRZI.
I have a reel-to-reel recorder. It's a Roberts from the 60's.
Transistorized yet! My tapes from that era sound just as good as they
did then. But, then again, my ears are that much older also. Print thru
is alleviated by winding the tapes loosely. At least it works for me.
Al
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