How do they do it?
Jan 6, 2021 21:12:41 #
Had a bit of an accident the other day with one of my SD cards. It "became" sadly quite bent such that it nearly came apart and the memory chip fell out. Well I've never seen the insides of a card before and was quite amazed at the size of the chip - set me wondering how do they get so much in something so little ????? I started with computers in the 80s with Commodore 64 and Sinclair TR80(?) when 4Mb of memory was a huge amount - why would you need more 
Anyway I thought a pic would be good to show those who've never had the misfortune to wreck a card what's inside. Had thought of super glueing the card back together but then decided if bits fell off while in my camera or card reader it could cost more to fix than a new card.
Anyway I thought a pic would be good to show those who've never had the misfortune to wreck a card what's inside. Had thought of super glueing the card back together but then decided if bits fell off while in my camera or card reader it could cost more to fix than a new card.
Jan 6, 2021 21:30:22 #
Weigh the cost of an SDHC against camera damage - do not glue & insert in your camera! Others may know if someone can retrieve anything from the debris. Good Luck!
Jan 6, 2021 21:41:42 #
JohnR wrote:
I started with computers in the 80s with Commodore 64 and Sinclair TR80(?) when 4Mb of memory was a huge amount
Hi John:
I did the TRS-80 thing also but was 4K of RAM not 4 MEG. 4 MEG would have been the size of an over $2000 dollar hard drive in those days.
Brian
Jan 6, 2021 22:04:01 #
These two SD cards are much stronger than standard SD cards. They have a one-piece molded case that won't come apart. They also don't have ribs between the contacts and no write protect switch. I use the Delkin Black cards.
Jan 6, 2021 22:13:36 #
Brian S. wrote:
Hi John:
I did the TRS-80 thing also but was 4K of RAM not 4 MEG. 4 MEG would have been the size of an over $2000 dollar hard drive in those days.
Brian
I did the TRS-80 thing also but was 4K of RAM not 4 MEG. 4 MEG would have been the size of an over $2000 dollar hard drive in those days.
Brian
I had a Radio Shack TRS-80 Color Computer. Max memory ANY at that time was 64K.
I think there were at least five models of the TRS-80.
Jan 6, 2021 22:13:55 #
quixdraw wrote:
Weigh the cost of an SDHC against camera damage - do not glue & insert in your camera! Others may know if someone can retrieve anything from the debris. Good Luck!
Jan 6, 2021 22:15:03 #
Brian S. wrote:
Hi John:
I did the TRS-80 thing also but was 4K of RAM not 4 MEG. 4 MEG would have been the size of an over $2000 dollar hard drive in those days.
Brian
I did the TRS-80 thing also but was 4K of RAM not 4 MEG. 4 MEG would have been the size of an over $2000 dollar hard drive in those days.
Brian
Jan 6, 2021 22:18:15 #
All this dots look like a connector with wipe (scrub) marks on them. (from what I can enlarge the image.)
Nothing else inside the case?
You wouldn't believe how small the IC die can be.
Nothing else inside the case?
You wouldn't believe how small the IC die can be.
Jan 6, 2021 22:28:41 #
Longshadow wrote:
All this dots look like a connector with wipe (scrub) marks on them. (from what I can enlarge the image.)
Nothing else inside the case?
You wouldn't believe how small the IC die are.
Nothing else inside the case?
You wouldn't believe how small the IC die are.
Well the microSD card of the same capacity would be even smaller. So the actual IC is very small.
Jan 6, 2021 22:32:35 #
If the info on your card is important you can get a card reader from Amazon for under $10. It may not work but a cheap try.
Jan 6, 2021 22:33:53 #
If the info on your card is important you can get a card reader from Amazon for under $10. It may not work but a cheap try.
Jan 6, 2021 22:36:18 #
If the info on your card is important you can get a card reader from Amazon for under $10. It may not work but a cheap try.
Jan 7, 2021 06:56:56 #
Cards have gotten smaller, memory amount has gotten larger, prices tend to go up.
Cards tend to be fragile. I have a dog that chewed a CF Card. He Totally destroyed the card beyond repair or retrieval.
Once a card is damaged don’t try to repair it. Don’t even place it back in your camera or your computer. Once it goes into the slot, it won’t come out.
Cards tend to be fragile. I have a dog that chewed a CF Card. He Totally destroyed the card beyond repair or retrieval.
Once a card is damaged don’t try to repair it. Don’t even place it back in your camera or your computer. Once it goes into the slot, it won’t come out.
Jan 7, 2021 07:18:23 #
Jim70
Loc: Delaware
When I first got involved with computers, I had an AIM65 with 4K memory. I applied to my boss for an upgrade to 8K and was denied because "nobody needs more than 4K" for programming!
Jan 7, 2021 07:38:46 #
BebuLamar wrote:
Well the microSD card of the same capacity would be even smaller. So the actual IC is very small.
Yes, the die for the micro would be the same die used for the regular size card.
They don't make the die smaller for smaller packages.
A 64Gb memory die is a 64Gb memory die.
Package size is the only difference.
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