Messages in this thread | | | Date | Thu, 4 Jan 2001 22:05:01 +0100 (CET) | From | egger@suse ... | Subject | Re: Journaling: Surviving or allowing unclean shutdown? |
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On 4 Jan, Richard B. Johnson wrote:
> Well they do! It's just not allowed for us (the users) to know that > they > __didn't__ run completely out of power! If the thing is so dead > that it won't recharge, it still has 'power' (enough to keep static > RAM alive). Just remove the battery, wait about 120 seconds for a > capacitor to discharge, and, zap, no more stored phone numbers. > Static RAM with an electrolytic capacitor, isolated with a diode, > takes so little power that you can normally change defective batteries > if you don't take too long.
I've several Nokias and Siemens phones here. All of them will survive for weeks without any battery connected; and not only the phone numbers on the SIM card. I guess they all have FlashRAM, although I haven't disassembled one recently.
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Servus, Daniel
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