Tagged Questions

-1
votes
1answer
53 views

Advantages/disadvantages of virtualizing a CPU? [closed]

I saw that my virtualization tool does not virtualize my CPU. But, it virtualizes everything else. I want to know what could be the reason, advantage/disadvantage of virtualizing a CPU.
4
votes
3answers
111 views

Difference between programs compiled for different OS

On a compiled code standpoint what is the difference between a program compiled for one os vs another (Linux vs windows for instance). Doesn't the program run directly on the cpu? Or is it because the ...
0
votes
2answers
69 views

would a core failure on a multicore computer cause system instability?

Say for example, one of the cores in a quad core computer overheated and died, would the system compensate by routing all operations to the remaining 3 cores, or would the computer be inoperable? If ...
5
votes
4answers
288 views

How do multi-core CPUs work?

I know, vague question title, but my main question is, does 1 core have to execute only one program at a time? Does the "multitasking" at the CPU level work by switching between tasks, and if so, why? ...
0
votes
2answers
69 views

Does the OS exploit multiple cores

I know that more cores isn't always better and that most applications are single threaded however does the OS make use of the additional cores? For example, assume an application such as a dictionary ...
0
votes
1answer
126 views

Which Official ISO do I Download?

I wanted to do a clean install of my Win7 after I get my HDD so I decided to download the Official ISO from here.I got this link from HP's website. I have the product key with me but not the discs ...
0
votes
0answers
21 views

32-bit or 64-bit OS? [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems I just built a new box which has an i7 3820 running as CPU. I usually run linux distros on my boxes. Is it best to go with a 64-bit distro ...
2
votes
2answers
442 views

Is my laptop processor 64bit?

I have a Lenovo Ideapad Y510. I have always used 32bit OS in it. Yesterday I came across this detail of my laptop and it says processor of my laptop is 64bit (hope I have not misinterpret anything) so ...
2
votes
1answer
92 views

Does real-time computing always require a real-time operating system?

Does real-time computing always require a real-time operating system? Is it possible to run real-time applications on general purpose (usual) OSes?
1
vote
3answers
458 views

Windows 7 Goes Down, but Machine still Running, eg, Fans, CPU, etc

I have a weird problem that has me baffled. A few days ago, my wife reported that, when she went to run a program for our daughter on an alternate login, my machine was "off." I asked her if she ...
0
votes
1answer
40 views

How Will I come to know the previous details of MAC Address, Processors in ubuntu OS

I want to know that how one can get information about the previous details of MAC Address, mother board configurations(Processor details etc) in ubuntu OS once the motherboard is changed? I mean, Is ...
0
votes
1answer
126 views

Testing an embedded device processor [closed]

I am writing some tests to test the processor on an embedded device (running on Linux). The device shell supports Ash, python and I can even run C code after compilation in scratchbox. Can you give ...
-1
votes
1answer
95 views

Understanding 64 bit [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems From my understanding, saying that a system is 64 bit means that it has a processor that recognizes and handles the x64 instruction set ...
5
votes
4answers
604 views

What determines endianness

I was wondering if endianness only depends on CPU? Does it depends on other hardware, such as memory, secondary storage device? Does it depends on OS? Why in Wikipedia, does it seem to be true?
10
votes
3answers
259 views

How does a computer know which CD/DVDs to boot from?

What actually happens when a user reboots his or her system with an OS disk (or other bootable disk) in the CD/DVD drive? For example, when I put in my OS installation CD and start the computer up, ...
2
votes
2answers
312 views

Bits of CPU, architecture and OS

I was wondering if the bits of OS, of instruction set, of CPU registers, of data bus from CPU to memory, and of address bus from CPU to memory must be consistent in some sense and how? When we cay ...
3
votes
2answers
215 views

64 bit Operating System?

What we are getting if someone says "my machine is 64-bit computer" . What is the difference between 64-bit computer (I mean the CPU architecture) and operating system (Windows 64-bit OS). Please ...
1
vote
3answers
2k views

Having trouble installing Windows 7 64-bit on my i3-350M laptop

Based on my brief research, the version of Windows 7 you can install (with respect to 32 or 64 bit) is based on what processor you have. I just bought a Dell Vostro, with a i3-350M Processor, and as ...
6
votes
3answers
680 views

Kernel and User mode distinguishing

Who is responsible for determining that the process is in the Kernel mode or User mode? I know kernel knows which process is belong to what space, but how the CPU determines that? I mean should CPU be ...
3
votes
7answers
462 views

Why cant we use 64 bit OS on a 32 bit CPU?

Why can't a 64-bit OS run on a 32-bit CPU, but a 32-bit OS works on a 64 bit CPU?
22
votes
14answers
32k views

When are we going 128-bit? How it will be? What gets better? [closed]

With the launch of new 64-bit OS and processors, we can say we already are in the 64-bit age. So, what's the next step? 128-bit. What are the 128-bit processors already available? Which operating ...
9
votes
4answers
7k views

Can a 32 bit OS run in a 64 bit processor?

What's the difference between 32 bit OS and 64 bit OS? Can a 32 bit OS run in a 64 bit processor?