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 Yearling
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Aug
28
comment Does a CPU clock frequency vary on-demand?
Note that a system that's really idle shuts down the CPU clock entirely. (sleep states, C2 and higher). Modern CPU's will also power down their caches if idle long enough (C3). What you're describing here are the power states used while in C0 (not asleep)
Aug
25
comment How does Windows know if a program is not responding?
@ratchetfreak: Presumably before the first CreateWindow call. Command line apps are different beasts altogether; they're running inside ConHost.EXE and it interacts with the Windows GUI susbystem for them.
Aug
25
comment How does Windows know if a program is not responding?
Windows does not have a reliable app isolation. You can't always blame a window hanging on the main executable. For instance, a certain line of Dell laptops had crapware installed on them that crashed our application. The crapware tried to add an extra drive letter for "encryped content", and we asked Windows whether a certain drive was a USB drive. Windows then asked the crapware on our behalf. It hung instead of returning "no", but it hung while inside out process.
Aug
25
comment How does Windows know if a program is not responding?
The accepted answer, in referring to IsHungAppWindow correctly notes that a program in the startup phase doesn't have to call GetMessage.
Aug
3
comment Is public IP unique?
Nitpick 2: and 169.254.0.0/16, per RFC 3927. (Link-local IP)
Jul
28
comment Why does 1366x768 resolution exist?
WXGA generally used 24 bits color (stored in 32 bits) so you'd need a 64 Mbit chip instead of a 32 bit chip, but the logic still applies.
Jul
13
comment Why is the system partition C:\?
If you had one floppy drive, B: was another disk in the same drive. That way you could do COPY A:\FILE1.TXT B:\NEWFILE.TXT and DOS would prompt you to swap disks. I wish I could recycle the braincells which remember that cruft.
Jul
9
comment Size of files in Windows OS. (It's KB or kB?)
@DietrichEpp: As a physics engineer working in acoustics, I'm entirely familiar with the (deci)Bel. Audio is very much physics. ITYM that Bel is dimensionless, not abstract. That's hardly unique in physics. So it the mol, so are Cv (streamline) values, Reynolds numbers, ...
Jul
9
comment Size of files in Windows OS. (It's KB or kB?)
@DietrichEpp: That's still physics. The byte is not a unit of physics; physicists measure information as entropy (unit: J/K).
Apr
20
comment PC restarts on power outtage despite having a UPS
I don't believe that such a surge protection is really reliable anyway, so the risk doesn't really change.
Apr
20
comment PC restarts on power outtage despite having a UPS
Yeah - if that's a 220V output, 5A, then it is possibly old. Europe moved from 220V to 230V,except for the UK which moved down from 240V to 230 V. But most hardware doesn't care about that. The point is that 220V, 5A should give you 1100W (or 1150), not 800. There's some nitpicking about "power factor", but in your case that factor is 0.99 so you should still get 1089W.
Apr
20
answered PC restarts on power outtage despite having a UPS
Apr
16
comment Does MotherBoard limit RAM?
@AlienC: That is not 100% certain in general - it may be able to give your videocard an address past 4 GB (it too may require an address). But your laptop has integrated GFX so that's probably not relevant to you.
Apr
16
answered Does MotherBoard limit RAM?
Apr
6
comment Can you grab any IP address on the Internet?
Wasn't responding to @FriendOfKim, but in short: such ISP's would suddenly find themselves isolated from the rest of the Internet. Nobody would connect to them. Since that's a death penalty to an ISP, they play by the rules.
Mar
28
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Mar
10
comment How can Windows dump the complete RAM in the hibernation file so fast?
Even if a DLL is relocated, the only thing needed to bring it back is the relocated address. Relocation is a deterministic process and can be repeated.
Feb
19
comment Is there a way to completely eliminate any 32-bit support on a 64-bit windows?
I'd be confident that if it works once, you'll get at least 99% success. Possible exceptions: Microsoft processes, things running under SYSTEM account, etc.
Feb
19
answered Is there a way to completely eliminate any 32-bit support on a 64-bit windows?
Feb
19
answered Does an IO port address belong to RAM?