CMOS battery
#1
Posted 24 March 2010 - 02:19 PM
#2
Posted 24 March 2010 - 02:29 PM
1) Maintain system settings and options (overclocking for example) when the power is disconnected.
2) Remember the system date and time without the power connected. This is important for many reasons - websites may not work, programs may not work, Windows may not work. Every time the system is powered up the system will think it's midnight of a year gone by. The older the system the earlier the date.
There are no issues with running a system without a CMOS battery, but they're so dirt cheap it's silly not to replace a dead battery.
#3
Posted 24 March 2010 - 02:34 PM
I do wonder though, if the system has no time setting, would this effect the execution of viruses? I don't know the in's and out's or the state of networks to be humbly honest. It does seem to me, although, that knowing a system time wouldn't be pertinent if you were on a secure network, unless the implication of programs and scripts was time based.
Intrusions that are not time based, or updates, wouldn't be effected though so long as they had the means to penetrate whichever code the system was running. Does this make sense?
#4
Posted 24 March 2010 - 03:09 PM
It does seem to me, although, that knowing a system time wouldn't be pertinent if you were on a secure network, unless the implication of programs and scripts was time based.
If your system time is changed within Windows, you will have trouble with SSL, amongst other issues.
http://blogs.msdn.co...ystem-time.aspx
#5
Posted 24 March 2010 - 03:41 PM
Thanks for the blog link as well. I have been looking for a suitable tech blog that wouldn't just let me know all the opinions on Apples new e-reader and such. It is very much appreciated.
#6
Posted 24 March 2010 - 05:20 PM
#7
Posted 24 March 2010 - 05:20 PM
I do wonder though, if the system has no time setting, would this effect the execution of viruses? I don't know the in's and out's or the state of networks to be humbly honest. It does seem to me, although, that knowing a system time wouldn't be pertinent if you were on a secure network, unless the implication of programs and scripts was time based.
Many years ago when it was all field 'round here, a lot of virii were what could be called now as time-bomb. That basically means they only worked at certain times on certain dates, and stopped working after a certain year. Most of these date from the time when you spread infection via floppy disk drive. The modern day equivalent would be the Conficker worm, which was actively patched through the internet to go off again on April 1st last year.
These days of course, the system time matters not because it's all about emptying your bank account.
Edited by Neil Jones, 24 March 2010 - 05:21 PM.
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