A BIOS always needs power to retain data! A CMOS battery is needed for this!
But I can remove an internal SSD without losing all my data! Even if it has no power! How is that possible?
(1 votes)
Loading...I would like to save all important data, all the pictures I have, etc. Which is better for this, the cloud or an external hard drive? The hard drive is obviously cheaper, but I'm worried that it could simply break and I'd lose all my data. What do you think?
Is it possible to copy data from an internal hard drive to an external hard drive using a docking station?
I mean, Canon printers aren't HP. Does this still work?
How much is one euro worth in Subwaysurfercoins.
Is the operating system on the hard disk or in flash memory?
https://www.storage-insider.de/was-ist-ein-solid-state-drive-ssd-a-828978/
In principle, flash memories in (also) SSDs consist of transistors that have the ability to hold electrons “captured” in a highly isolated region. In this way, they do not need any current to receive the stored data. However, these “high-density” regions are not 100 carbon, an SSD is stored for a very long time without supply voltage, but electrons can escape and the bit tilts around.
Imagine an SSD like a collection of microscopically small batteries. Bit patterns are represented by charging the memory cells with current.
However, the storage cells are unloaded with time – if you would pack a switched-off phone with fully charged battery into the cabinet and take it out again after months, the battery would no longer be full.
The same happens in the SSD. Therefore, according to the storage type, after a few months without current, first errors can already occur in the data. This is because a memory cell, depending on the technology (MLC, TLC or QLC), must display either 4, 8 or 16 different charging levels.
While MLC with 4 charging levels (0%, 33%, 67% and 100%) still needs a quite large discharge so that you can no longer distinguish between 100% and 67%, QLC with 16 gradations looks quite different from the distances are not even 7%. A small discharge is sufficient so that you can no longer distinguish between 100% and 93.3%.
That can be because it’s another technique.
A Hdd does not need any constant current to store data. Or a CD or a casino or LP or or or or.
CD, HDD,… are not described with magnetic fields
Cds are NOT described with magnetic fields.
The technique of SSDs does not correspond to that of a USB stick.
The information in an SSD is stored by charging the installed transistors. The charge does not change when there is no more current. Due to environmental influences, it can change at some point – but naturally it takes a long time. If you leave them 80 years somewhere, the data may be damaged.
Not really – depending on the storage type, a few months are enough. Even in hard drives, this happens only after a few years. IT researchers can sing a song if after a few years the evidence can no longer be verified.
It may take a long time until the memory cells are completely empty, but we have MLC, TRC and QLC memory and therefore need to map 4, 8 or 16 different charging levels. There’s already a small discharge so we have bit errors…
This means that once a month all data carriers are connected to the PC so that they are supplied with current so that no data is deleted
USB sticks are not media for storing data! Things were developed to carry data from A to B but not as long-term storage solution.
Get stuck! I have 30 USB-STICKs and 3Ex.SSDs 3HDDs
Everything with Bachups! From different things
Also a USB-STICK on which all aps are configured to not fill the PCs!
For long-term storage I would rather take an HDD – which can also be in the closet for a few years!
PS.: It always makes sense of important data that you archived on 2 ver. to store data carriers. Just for security!
The principle is that in the SSD a grease capacitor sits the current stores. Since the electronics need very little power for data retention (less than a BIOS)
It is possible to obtain the data for a certain period (years).
No! That is absolutely not true, Mr Admin!
Then what?
Does an SD card include a bold capacitor?
Good question! It must be very small! Especially if it should fit into a MicroSD card!
Ups! Right! I missed it!
See my answer here.
A BIOS also stores data without battery/power… namely that BIOS itself.
When I remove the Cmos battery, everything will be deleted! Then why?
No. The BIOS is preserved. Only your settings will be deleted.
Cause
Thanks for the easy-to-understand explanation!
Your settings are stored in static RAM, unlike BIOS, which is in flash memory. An static RAM must have a voltage that the stored information is not lost, with flash memory it is not necessary.
I mean that.
I guess I wasn’t clear enough!
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