Clock 17 replies

  • 1
  • 2

Please wait...

The Joelteon7

The cake is a lie.There is no cake.

50 XP

13th November 2004

0 Uploads

3,926 Posts

0 Threads

#1 12 years ago

Hey guys, just thought I'd ask somethign that's been bugging me recently. The clock, in your bottom left hand corner. I wanna know how it knows what the correct time is because, I understand what happens when the computer is turned off and the other files are stored btu I just don't get how the clock knows what the time is. I know this is trivial, but it's just one of those things, you take it for granted but don't actually know (atleast I don't). Any answers?




Guest

I didn't make it!

0 XP

 
#2 12 years ago

hm good question maybe it's like wirelessly transmited from a phone tower, like a mobile phone.




FlyGuy45

*TRA* Spsk. Pilotka VVS

50 XP

22nd June 2005

0 Uploads

6,414 Posts

0 Threads

#3 12 years ago

My guess is the PC is shut off but an current is still running and can keep track of it, sort of like teh brain is till on while you sleep. Or I bleive it can mark when it shuts and can remeber the time uit came on since I don't want to read this(I dont understand it :D ) http://www.eecis.udel.edu/~ntp/ntpfaq/NTP-s-algo.htm

EDIT:What if your not connected to anything?^ ^ You reponeded while I was typing puta :D.




gnspr9

Things with sharp edges!

50 XP

23rd July 2005

0 Uploads

998 Posts

0 Threads

#4 12 years ago

i thought it just connected to some microsoft superclock through the internet.....but then how do those w/o an internet connection get the current time.....




Bs|Archaon

I would die without GF

50 XP

15th March 2006

0 Uploads

5,910 Posts

0 Threads

#5 12 years ago

The system time is set via the BIOS, and like other BIOS settings is stored with the help of the CMOS battery. If the time/date is changed in Windows is changed, so is the system time and vice versa. Therefore if you set it up right in Windows, (or synchronise with an internet source, which is quicker) then it changes the time in the system clock which is kept by the BIOS/CMOS.




rob.

I am the Walrus

50 XP

24th October 2004

0 Uploads

5,580 Posts

0 Threads

#6 12 years ago

Take out your CMOS battery. See what the time is when you start your PC up in the morning. ;)

Exactly what Bs|Archaon said.




Rookie VIP Member

128,030 XP

3rd May 2005

0 Uploads

11,953 Posts

0 Threads

#7 12 years ago

Yep. Your PC uses a system 'timer' (the clock) that is run from the CMOS battery. As for keeping it up-to-date, Windows XP automatically synchronizes the clock with a global timeserver every so often. IIRC older versions of Windows do not do this.




AegenemmnoN VIP Member

The cream of the crop

228,590 XP

20th August 2003

0 Uploads

21,534 Posts

0 Threads

#8 12 years ago
Rookie_42 IIRC older versions of Windows do not do this.

Main reason and the feature I bought XP for.




The Joelteon7

The cake is a lie.There is no cake.

50 XP

13th November 2004

0 Uploads

3,926 Posts

0 Threads

#9 12 years ago

Aha, so a great question solved. Thanks guys, that one has been plugging away at me for a bit. :bows:




FlyGuy45

*TRA* Spsk. Pilotka VVS

50 XP

22nd June 2005

0 Uploads

6,414 Posts

0 Threads

#10 12 years ago
Rookie_42Yep. Your PC uses a system 'timer' (the clock) that is run from the CMOS battery. As for keeping it up-to-date, Windows XP automatically synchronizes the clock with a global timeserver every so often. IIRC older versions of Windows do not do this.

So there is a little battery inside PC's?




  • 1
  • 2