It is a special day today

[Guest Shenan Stanley]

Charles Douglas Wehner wrote:<span style="color:blue">

> Regarding leaving equipment on all day:

>

> One cannot generalise. It all depends on the equipment.

>

> Tungsten filaments, as in a tungsten light bulb or the heater of a

> fluoresccent lamp, do indeed cause a huge surge at switch-on.

> However, as it is only for a fraction of a second you cannot see it

> on a current meter. It is this surge that causes them to burn out

> at switch- on.

>

> Tungsten gives about 15 lumens per Watt. Fluorescent gives about 55.

> It is better not to switch fluorescents on and off too often,

> because whilst running they are so efficient that there is not much

> saving.

>

> Computers have hard drives. Sometimes, some background task makes

> the motor run. Mechanical wear and tear has to be taken into

> account.

>

> Again, when a CPU is running, it gets warm. That is why they have a

> fan fitted. If they are running for too long, the dopant on the chip

> will shift, and the transistors that have been fabricated on the

> chip may fail.

>

> A server MUST be on 24/7 - but a domestic computer, used for just an

> hour or so per day, is best left switched off.

>

> I could say so much, after almost fifty years in engineering.

> However, it is best to say that it depends on the individual case.</span>

 

Not all servers must be on 24/7. Some people like to think so - but

realistically - most servers could blink on/off several times a day/night

and no one would likely ever notice. (Not saying that some servers have

applications running on them better served by long and relatively

uninterrupted up-time - but there are many types of servers that are one of

many redundant in a system and the individual outage would not affect

service to the customer as well as servers whose outages during certain

times would unlikely ever be noticed.)

 

Not all computers have moving parts. Even modern/fully functional Windows

XP/Vista machines used by everyday consumers may have few (a few fans) to no

moving parts. Hard Disk Drives are slowly giving way to solid-state drives.

 

In the end - it really comes down to what the end-user wants/needs and can

do over what may/may not happen with worn-out mechanical parts. Can the

end-user afford the electricity/bandwidth that may be used by their

'supposedly idle' PC? Is it green and does the end-user care? What sort of

machine is it, what does it do, why should/should not it be on 24/7?

 

On the moving parts going out - sometimes its more 'luck of the draw' other

than anything else. I have systems/components that have ran well for 15+

years (well meaning they did what originally intended) and I have had

systems/components that came to me dead (or died at the first power-cycle.)

 

--

Shenan Stanley

MS-MVP

--

How To Ask Questions The Smart Way

http://www.catb.org/~esr/faqs/smart-questions.html

[Guest Richard Urban]

~BD~ wrote:<span style="color:blue">

> "none" <""richard"@(none)"> wrote in message

> news:uRVl4MKZJHA.1532@TK2MSFTNGP03.phx.gbl...<span style="color:green"><span style="color:darkred">

>>>>>> "Peter Foldes" <okf122@hotmail.com> wrote in message

>>>>>> news:u2PeUW4YJHA.1532@TK2MSFTNGP03.phx.gbl...

>>>>>>> Most if not all Englishmen are extremely bright but when a

>>>>>>> Englishman is stupid then he is really stupid. This one takes

>>>>>>> after Chamberlain. Nuf said</span>

>> Now you are challenging people on things they have never said. Take a

>> pill and calm down for heavens sake.</span>

>

>

> Maybe there was too much for you to read through, Richard!

>

> See what Andrew Taylor said, here:

> news:494ee9a3@newsgate.x-privat.org...

>

> I've been asking Mr Foldes to say a few words about the kind of business

> he's in for nearly three years, but he's very secretive about it.

> Maybe he'll tell you if you ask him!

>

> If it's Kosher, that's fine. I'm only concerned with bad guys! style_emoticons/

>

> Have a great Christmas and may God bless you.

>

> Dave

>

> </span>

 

What business Mr. Foldes is in is none of YOUR business. Get it!