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visits member for 3 years, 8 months
seen Aug 20 at 17:28

Dec
6
comment Does an operating system intervine after each time slice/quantum?
@Celeritas, sleeping is the state the task is in and blocking is what a system call does when it puts the task to sleep.
Dec
6
comment Does an operating system intervine after each time slice/quantum?
@Celeritas, blocking means the task goes to sleep while it waits for something, like disk IO, allowing other tasks to be run instead.
Dec
6
comment Does an operating system intervine after each time slice/quantum?
The scheduler isn't invoked after servicing every interrupt; that would have too much overhead. There also isn't any guessing about time between blocking calls; the scheduler just does a quick check to see if the quantum has expired on each timer interrupt.
Dec
6
comment Does an operating system intervine after each time slice/quantum?
@Celeritas, there isn't any swapping and quanta aren't ridiculously short ;)
Dec
5
comment Does an operating system intervine after each time slice/quantum?
@Celeritas, only one task can be running on a given cpu and the time it takes to adjust the priority of the task and check to see if there's a higher priority one is very small ( like 10,000 or 100,000+ times less ) compared to the length of the quantum.
Dec
5
answered Does an operating system intervine after each time slice/quantum?
Dec
1
comment CHKDSK /R turns Perfect HDD Seagate 3TB to 0.7TB (marks the rest has bad)
Check the system logs for IO errors.
Oct
4
answered 16GB SanDisk USB drive became 2x64MB
Sep
29
comment Hibernating and booting into another OS: will my filesystems be corrupted?
Hibernating one OS and mounting the same partition in another is effectively having two operating systems access the disk at the same time. They don't know about changes the other one has made so corruption will result.
Sep
27
answered Is it possible to power on/off a monitor using the computer?
Sep
23
comment Let windows ignore a faulty drive?
By booting from an OS that is NOT on that drive?
Sep
20
comment Which usb drive the system boots from in case multiple bootable usb drives are plugged in?
@LorenzoVonMatterhorn, yes, it is easier... and irrelevant to the question, which asked which drive will boot if you do plug in both. The answer is that it depends on which port it is plugged into.
Sep
20
comment Which usb drive the system boots from in case multiple bootable usb drives are plugged in?
@LorenzoVonMatterhorn, you have to try it and see which one was first.
Sep
20
comment Which usb drive the system boots from in case multiple bootable usb drives are plugged in?
@LorenzoVonMatterhorn, omg.. whichever one is wired up to be "first", which is hardware specific.
Sep
20
comment Which usb drive the system boots from in case multiple bootable usb drives are plugged in?
@LorenzoVonMatterhorn, the ports on a hub are scanned in order, hence why your choice of socket you plug the devices into determines which one boots. There aren't any details because it is stone simple.
Sep
20
comment Which usb drive the system boots from in case multiple bootable usb drives are plugged in?
@LorenzoVonMatterhorn, umm... by answering it. Do you not understand the question? It is which of the two devices will the system boot from.
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.