2,985 reputation
11020
bio website kohne.org
location North Wales, PA
age 45
visits member for 5 years, 1 month
seen 6 hours ago

Embedded Software Developer


Dec
28
comment How to protect laptop if my outlet isn't grounded?
@DanielRHicks - UPS often try to detect ground faults because if you have certain types of ground fault, AND the UPS starts providing power, it could create a situation where the user might die.
Dec
18
answered How is double NAT bad practically?
Dec
18
comment Disconnect from samba share
Also note that cases where you've done something like open a file on that share can leave an application with a directory open, which will also prevent the share from completely going away.
Nov
26
answered Is there a way to read the contents of the master boot record?
Nov
13
asked How do I reprogram the extra buttons of a Kensington Expert Mouse trackball under Windows 7 with left/right keys swapped?
Nov
13
answered How do I reprogram the extra buttons of a Kensington Expert Mouse trackball under Windows 7 with left/right keys swapped?
Nov
13
revised Remote desktop solution where the desktop sharing party contacts the computer it wants to share with
remove signature
Nov
13
answered Remote desktop solution where the desktop sharing party contacts the computer it wants to share with
Oct
18
comment Sandra reports my CPU as “Engineering Sample”, how can I be sure this is correct?
@Ramhound - do you mean that the pad is just a pre-formed blob of paste, or is it one of the polymer pads (I know 3M makes some materials that can work in this situation). The advantage to the pads is that you don't need to worry about them when re-applying the cooler, they should squish right back down and keep working, if I'm not mistaken.
Oct
18
answered Sandra reports my CPU as “Engineering Sample”, how can I be sure this is correct?
Oct
1
comment Is little-endian still faster on Intel processors or it does not matter if I parse big-endian on intel?
@chrisapotek - If you are doing stuff in-memory, then you'll use the processor's native representation, because you want to work with the data. If you are implementing standard protocols, you again don't get to choose - the standard defines things. If you are designing your own communications protocols, then you can do what you want (and mirroring the architecture of most of the involved systems is probably a good idea).
Oct
1
revised Is little-endian still faster on Intel processors or it does not matter if I parse big-endian on intel?
mentioned network stuff
Oct
1
comment Is little-endian still faster on Intel processors or it does not matter if I parse big-endian on intel?
Before someone asks: The TI TMS34020 Graphics System Processor could in fact be run in either little or big endian mode. The only problem was that the compilers I had at the time generated bad code in big-endian mode, so we ended up using it in little endian anyway.
Oct
1
answered Is little-endian still faster on Intel processors or it does not matter if I parse big-endian on intel?
Sep
10
comment PS/2 vs USB keyboards: performance and energy consumption
@MisterSmith - USB to PS/2 is NOT a simple wiring adapter in the general case. There are some devices (including a lot of gaming keyboards) that support both interfaces on the same connector (via simple wiring adapter), but in the general case this is NOT true. As to #2, the amount of power/cycles used to poll the USB keyboard vs respond to PS/2 interrupts is so small as to be irrelevant.
Jul
24
answered compile command executed inside script gives error, executed outside is fine…might be gcc
Jul
15
awarded  Yearling
Jul
10
awarded  Caucus
Jul
9
comment Disappearing Hard Disk
SMART tools are recommended here: superuser.com/questions/14803/…
Jun
29
comment New build won't boot: some fans turning, no beep or video
As a side note I recently had this symptom start up on a previously working computer. In my case, it was caused by failures of capacitors on the motherboard. I kinda thought that the supply chains had worked the bad caps out many moons ago, but apparently not.