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Sep
20
comment Which usb drive the system boots from in case multiple bootable usb drives are plugged in?
@LorenzoVonMatterhorn, that utterly fails to answer the question by dismissing the situation that gave rise to it.
Sep
20
answered Which usb drive the system boots from in case multiple bootable usb drives are plugged in?
Sep
15
comment Plastic gloves to protect from electro-static discharge?
@PsychoData, and that is exactly how a capacitor works. Charge builds up due to an abundance of electrons on one plate and absence on the other.
Sep
13
comment Plastic gloves to protect from electro-static discharge?
@PsychoData, it is the exact same process. Your body acts as a small capacitor, and discharges at high current. The spark you get when you touch the door knob has high current, just for a very short ( microseconds ) time. The caps that drive a CRT have a high enough voltage that if you touch them, it will go right through latex gloves.
Sep
13
comment Plastic gloves to protect from electro-static discharge?
@EBGreen, get or give is just a matter of perspective. It's all the same to the electrons...
Sep
13
comment Plastic gloves to protect from electro-static discharge?
@EBGreen, no kidding. I didn't say otherwise.
Sep
13
answered Plastic gloves to protect from electro-static discharge?
Sep
12
comment PC power usage related to power supply
Sorry, but this is wrong. The modern switching power supply does not have a fixed internal resistance. It's apparent resistance will decrease in order to supply more power to a larger load, and maintain the voltage with high precision.
Sep
12
comment PC power usage related to power supply
Yes, but a power supply running at 20% is less efficient than 50%, so getting an 800 watt supply when you only need 200 will leave you with more heat and a larger power bill than a 500 watt supply.
Sep
3
comment How can I prevent automatic DPI scaling when HDTV on HDMI port is enabled?
So uncheck the box and use a different scaling for each monitor?
Sep
3
answered How to clone a 1 TB hard drive (source) to a 4 TB hard drive (target)
Sep
1
comment Linux: don't create swap partition?
@mdpc, not necessarily; it just has to be large enough to hold the used ram that can not be discarded ( i.e. data backed by a file on the disk ).
Sep
1
answered Linux: don't create swap partition?
Sep
1
answered /dev partition missing, so mdadm broken. How to get Linux to see partition?
Sep
1
comment are dual 2.5" hdd enclosures without external power possible / even exist?
It is mA, not mW... 500 mA at 5v = 2500 mW.
Aug
31
comment Why does RAM have to be volatile?
@Vector, flash takes high voltage to change its state. High enough that it damages it a little bit each time you do, so eventually it burns out.
Aug
31
comment Why does RAM have to be volatile?
@Gizmo, you don't... back in the 8086 days you could, and in the 386 days you could install it in special slots on some motherboards to be used as high speed cache for the slower and larger DRAM, but these days it's only found in the cache built into the CPU. DRAM prices and densities are just so much higher that nobody uses SRAM any more.
Aug
31
comment Why does RAM have to be volatile?
Not all non volatile memories have to wear out; see the ancient core memory, and IBM has been saying for a few years now that they are developing a modern version of that. The correct answer is that they don't have to be, just current cost-effective technology is because it is based on capacitors, which leak, but can be made very small/dense. Also DRAM is not read in blocks. You have to open a row before you can read or write it, but once opened, you can read or write a single byte then close it.
Aug
28
comment Why does my microwave kill the Wi-Fi?
Umm, no, electrical load isn't going to reset any electronics unless your wiring is so sub-standard that the lights dim significantly when it turns on.
Aug
28
answered Is using multiple partitions a good data protection strategy?