The layer between your hardware and software. It manages disk input/output, memory allocation, graphic acceleration, hosting device drivers and various other resources.

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MacBook and multiple OS's

I just got a new MacBook yesterday. I am not a stranger to Apple or virtualization or anything. I am looking for the best advice to run OS X, Windows and Linux and share a common data partition ...
3
votes
1answer
292 views

what is the use of bootnxt file in windows 8 installation disc

while exploring the installation media of windows operating system i could see the following list of files : Boot mgr - the boot sector loads the Windows Boot Manager (hidden system file BOOTMGR in ...
3
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2answers
50 views

Load an remote Operating System to the local machine to work like local operating system

Could anyone of you suggest some method(idea) for loading an OS from a remote server to the local machine hard disk. Please see the scenario here, for more clarification. Imagine one guy has his own ...
3
votes
2answers
8k views

Is it Possible to Increase Display Resolution for OS X Maverick

The new OS X Maverick operating system has reduced maximum display resolution from 1920 x 1200 in Mountain Lion to 1680 x 1050, which is a SIZABLE reduction. The difference is obvious when viewing ...
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votes
2answers
706 views

How to improve ram and hard drive performance

I'm not able to figure out what the actual problem with my system is. It takes 15-20 min to start up completely and when I checked the start up programs there was no big program listed. When I open ...
3
votes
1answer
3k views

How do hardware interrupts work compared to software interrupts?

To give you an impression of the level of detail I'm interested, one example. I know a system call ultimately leads to a trap which lets the processor store registers, switch to supervisor mode and ...
3
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2answers
118 views

Will this new drive make a significant faster speed? [duplicate]

Possible Duplicate: Should I put my operating system on my fast drive or my slow drive? I just check the spec of my new drive and old drive, currently I am using the old drive as OS, here ...
3
votes
3answers
1k views

Which Linux Mint flavor is most suited for a 2.6Ghz + 500MB RAM computer?

I've tried Ubuntu, and while enjoyed it, couldn't run more than 1 program before the computer felt slow. Linux Mint has these different version 1) Linux Mint Gnome 2) Linux Mint XFCE 3) Linux Mint ...
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3answers
446 views

can I have a virtual memory smaller than physical memory like for example 2GB of virtual memory and 4GB of Physical Memory(not with respect to usage)?

Like I have virtual Memory size = 2 GB ,Physical Memory Size=4 GB.......... Is this case possible? Please Explain
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2answers
793 views

Windows Recovery Console - forgot password

I upgraded to Windows XP SP3, which immediately "broke" the laptop - it never booted with SP3 on it. I put in the Windows XP install disk I had originally used to set up the laptop, and it ran for a ...
3
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1answer
757 views

Available filesystems for Linux that are case-insensitive?

I have a client whose web application was written entirely in a Windows environment and served from windows. Unfortunately there's way to many cases of get file/At/Somelocation.php where the file is ...
3
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1answer
39 views

introductory video on Ubuntu

Is there a great first video for someone that has no idea about operating systems to introduce them to the possibility of using Ubuntu, demonstrating what it looks like, advantages / disadvantages, ...
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1answer
6k views

how to fix empty turn windows features on or off

I am running win 7 home premium, and now I see my windows and features list is always empty, i tried many solutions but nothing did it. I tried this last thing but failed to solve as well
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2answers
752 views

Platform vs operating system

I have been using the term platform and operating system to mean the same until now. For example: Windows and MAC are two platforms or operating systems. When it comes to different versions of windows ...
3
votes
1answer
63 views

Why do computers crash much less often than ten years ago? [closed]

Back then my computers had kernel panics and blue screens at least once a month. Which parts of the hardware and of the operating systems have been improved the most since then?
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votes
1answer
2k views

Windows 8 black screen after waking from sleep

Detailed The problem, when I trying to "awake" PC from sleep or hibernate (which running OS Windows 8 X64 Pro) getting black screen (Actually sometimes it awakes normally. But I can't figure out ...
3
votes
1answer
3k views

How do preferred and alternate or multiple DNS servers work?

I was considering adding 8.8.8.8 to the end of my adapter's list of DNS servers as a backup in case everything fails, when it occurred to me that I don't really know how secondary and tertiary DNS ...
3
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1answer
302 views

Using an OEM Windows XP license in a Virtual Machine

I just bought a Dell 640m laptop with Windows Developer Preview installed. There is no directory with any backups. The COA on the machine is for XP. I would like to install XP as a VM on the same ...
3
votes
2answers
1k views

Why is windows more prone to viruses than linux? [duplicate]

Possible Duplicate: How is Linux not prone to viruses, malware and those kinds of things? I want to get some broad level sense of why Windows is more prone to viruses than Linux.. What ...
3
votes
2answers
108 views

Who decides the RAID levels and architecture?

Is there some governing body that comes up with the specifications for different RAID levels? If not, how are they decided?
3
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2answers
110 views

Understanding an Application based on the OS interaction with a Hypervisor

Following I will ask a few specific questions but I will set the stage first. My goal is to monitor Applications in a very odd place - between the OS and a Hypervisor. If you have comments about this ...
3
votes
3answers
1k views

What's a good OS to put on an old laptop with 1.2Ghz Celeron and 256mb of RAM? [duplicate]

Possible Duplicate: What is the lightest-weight Linux distribution? I just thought I would see what people thought. I can put XP SP3 on it, and it will run ok - but if there's a linux ...
3
votes
1answer
75 views

Spec for spec speed differences between specific and generic hardware setups

John Carmack tweeted: For the same given paper spec, a console will deliver twice the perf of a PC, and a PC will deliver twice the perf of a mobile part. Normally this is the sort of claim I ...
3
votes
1answer
901 views

An operating system wasn't found

When I boot my computer, it boots fine. When I restart it though, I get the following error: An operating system wasn't found. Try disconnecting any drives that don't contain an operating system. ...
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0answers
52 views

What happens in a ARM based system before the OS is loaded?

What happens in a ARM based system before the OS is loaded and do they have BIOS, drivers, MBR or a different approach instead of these?
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votes
2answers
2k views

What is Paging in memory management?

I was just reading Operating System Principles by Silberschatz et al when I came across paging in memory management.I'm slightly confused about it. It states that Physical Memory(I assume it's RAM) is ...
3
votes
2answers
712 views

unable to install windows 7 in my laptop with no os

I have a the following message when i try to install windows 7 through an bootable USB.. setup was unable to create a new system partition or locate an existing system partition I will explain ...
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3answers
5k views

How to install OpenWRT on an x86 computer with SATA hard drive

I've tried to install OpenWRT Backfire 10.03.1-rc6 x86_generic combined ext2 on my x86 PC, but the boot process stops while "waiting for root device /dev/sda2". Forums have advised me to build a ...
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8answers
328 views

Should I pitch Ubuntu to virus victims?

I've noticed that on a regular basis I see facebook statuses complaining about viruses (e.g. "sorry I haven't been on in a few days... my comp got socked by a virus and I had to reinstall everything") ...
2
votes
4answers
113 views

I want to compile an OS. What is the best way to start?

Just to learn, I want to recompile some OS. I don't want a list of steps to be taken to do it because with that I will not be learning a lot, which would defeat the purpose. I also do not want to be ...
2
votes
7answers
487 views

Old Laptop, New OS

I have always been a Windows user. I have a laptop that originally had Windows XP on it and it is currently unused. I want to install a different OS on it. What OS can I try, and from where do I ...
2
votes
7answers
190 views

Is it a good idea to install an OS as soon as it's released? [closed]

Or is it better to wait some time so critical fixes are released? I'm thinking specifically about Windows 7, but this can apply to any OS.
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votes
3answers
1k views

Why does 32-bit Windows impose a 2 GB process address space limit, but 64-bit Windows impose a 4GB limit?

I get that 2^32 = 4,294,967,296 and 2GB is for the OS and 2GB is for the process, but why does a 64 bit OS only give 4GB of address space? Should it not be 2^64 = 18,446,744,073,709,551,615 which when ...
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votes
4answers
5k views

How to store an XML document in Mac OS X?

Firstly, I opened TextEdit. Went to Format Menu & I set option -> Make Plain Text, I entered following Data, Which is to be required in my Application. <?xml version="1.0" ...
2
votes
6answers
908 views

Confused between 32 bit OS and 64 bit OS

I have 32 bit Windows Xp on my machine now i want to install Windows 7 64 bit. Can i install it? My machine is 3-4 years old. Does the bits of OS has anything to do with hardware? Or it's just a ...
2
votes
1answer
225 views

Named ports in Windows

I wonder how stuff like this works in windows (xp and other that have telnet): Start-> Run -> cmd -> telnet <xyz.com> http Start-> Run -> cmd -> telnet <xyz.com> pop3 ...
2
votes
5answers
804 views

What parts of the OS are the most important?

I've got an assignment to complete where I compare two operating systems of equal vintage, however my instructor hasn't really given me much of a scope for this? He has basically asked for 2000-2500 ...
2
votes
5answers
162 views

Favorite Linux Variety and why? [closed]

Right now I have Fedora dual booted with Windows 7. The reasoning behind that is just because windows was the first OS I ever used and has some essential software, and Fedora is the first linux ...
2
votes
2answers
102 views

Can I find out which operating system created a file? [closed]

I have some files. All of them were created in different operating systems. Is there any way to identify from which OS each file was generated?
2
votes
5answers
459 views

Why do modern pre-emptive multitasking OSs hang when the CPU is loaded?

This is an open-ended question, with many possible answers, but perhaps there's one big thing I'm overlooking. If not, perhaps this question should be community wiki. I don't use other OSs often ...
2
votes
2answers
360 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 ...
2
votes
3answers
9k views

Windows Kernel Name\Version?

Mac OS X has the Darwin 10.6.0 Kernel, and Ubuntu has the Linux 2.6 Kernel, so in Windows what is it called?
2
votes
3answers
208 views

operating system that will run on a flash drive?

Do you know of anything like mojopac that will emulate your operating system? Ive already tried mojopac but no luck because the free version of the software does not allow it to run without running a ...
2
votes
2answers
352 views

timing a program

I am runnning a program in a linux server as well as timing its time usage by command time. Looking at the final output, I am confused since I thought "real=sys+user" or it at least approximately ...
2
votes
2answers
89 views

I spend a lot of time customizing my OS X. If my computer breaks, can I use the whole system in another machine?

I spend lots of time customizing my OS X. That includes lots of VIM customizations, folders, changing the keyboard layout, playing with system variables and so on. I probably do not even remember how ...
2
votes
3answers
1k views

What is the meaning of those numbers in the second column after typing “ls -l”?

drwxr-xr-x. 2 root root 4096 Jun 29 16:44 db drwxr-xr-x. 2 root root 4096 Jun 29 16:44 djproject -rwxr-xr-x. 1 root root 38 Jun 29 16:44 index.html drwxr-xr-x. 2 root root 4096 Jun 29 16:44 jobs ...
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votes
2answers
955 views

What does the 'bit' mean in an OS

I know there are 32/64 bit OS in the market. Q1-> But what does this bit mean actually ? Q2-> What is the lowest bit OS and highest bit OS ?
2
votes
4answers
372 views

What operating system can I use to turn my old computer into a home server?

I have a old desktop computer that I want to make a home server for file sharing purposes. It has 512 MB RAM and few GB of hard drive. Which operating system should be reasonable for this kind of slow ...
2
votes
2answers
78 views

Which physical core does the operating system use? [closed]

The operating system needs to be running on one or more physical cores of a multi-core processor, right? Is it possible to identify which those physical cores are using a piece of code?
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votes
3answers
1k 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 ...