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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9 views

iMac not letting me log in

I have a iMac OS. Last night it locked up on me. I powered it off and when I started it back up, it goes through the start up process and then it gets to the login page. I click on the icon to ...
0
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0answers
22 views

Is it possible to bring up the OS without any displays on an armStone A9? [duplicate]

How to bring up the operating system on an armStone A9 without any additional displays, but just via LAN cable? My network setup looks like this: Details: PC (machine 1): Ubuntu 14.04 LTS / ...
-3
votes
0answers
17 views

Is possible to port virtual machine on second monitor?

Is it possible to display a virtual machine (VM) on a secondary monitor like a TV, and the "core" operating system on the primary monitor? I want to play a game with a friend, and I imagine I could ...
0
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4answers
77 views

Reboot and select proper boot device error after changing partition table

I have a problem with starting installation of Windows from a pendrive onto my Samsung NP700G7C-S01 laptop. Here are things which I did: I formatted all disks on my laptop via GParted from Ubuntu on ...
0
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2answers
53 views

Is it possible to re-install an operating system over an encrypted system?

Scenario: I buy old PC/laptops, fix it and then resell them. I recently got a laptop at an auction with the whole system password encrypted McAfee Endpoint Encryption. Windows does not even load. I ...
-1
votes
0answers
49 views

Can’t boot OS as hard disk drive not visible in BIOS

My computer (Asus laptop) suddenly stopped booting up one day. So I used a Fedora live CD to back up all my files externally then used the same live CD to install Fedora while I figure out where I put ...
-1
votes
1answer
19 views

Can’t format Linux partition after reinstalling Windows

I was using 2 OSs, Windows 7—installed on C:—and Ubuntu—on a 60 GB partition next to G:. Now, I changed the processor and motherboard and reinstalled Windows. Ubuntu was left untouched. When I start ...
1
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1answer
40 views

Building a small home server [closed]

Good day everyone. I am not sure if this was the right forum on stackexchange, but I found it most applicable. I have quite an old PC (currently running Untangle, but not needed anymore), with ...
0
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1answer
27 views

Ho do I build and use a portable Windows OS environment for developers?

I am a developer and use several applications, tools and programs on my Windows 8.1 machine. I work frequently from home in addition to the office. Currently, I use one souped-up laptop that has all ...
0
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4answers
49 views

Uninstalling windows 8 and then re installing it, how does it work?

So my PC has an activated version of Windows 8.1 and i was thinking of changing my OS to Zorin to see if i like it, if i decide i don't like it is there anyway i can get back Windows 8.1, if so how ...
0
votes
1answer
46 views

How the desktop identify the correct time when power on the system

I bit confuse with how the desktop identify correct time when i power on again, i was surprised how it happen? is there anything run even when i power off the system? Let say in my time it was 7.30 ...
-1
votes
3answers
54 views

Why am I unable to use my Windows 8 after installing Windows 7 in a separate partition?

Previously I had dual boot I.e, Windows 8 in G:drive and Windows 7 in C:drive. Since I had slow performance in Windows 7 I had to remove and re-install Windows 7 again in C:drive. so while starting ...
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votes
1answer
66 views

What's the best Free OS available right now or soon will be? [closed]

My only familiarity is with win7. I'm looking for best new os system. That is light and fast, and can do everything. I have heard about ubuntu. But don't know if it's the best out there. So i want ...
0
votes
2answers
62 views

Computer claims operating system not found but the hard disk drive is fully operational

I’ve got this Dell XPS 15z laptop laying around with a broken hard driving. I swapped the hard disk drive (same format) of another laptop for an SSD. So I thought I could try to make it work again by ...
0
votes
1answer
30 views

Formatted PC wont boot from CD

I cleaned the HDD of an old PC with Hiren Boot CD to make a DIY server and it worked fine. I now have very clean hard drive. The problem is when I tried to put an iso of ubuntu server onto the machine ...
1
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1answer
60 views

What is “NT AUTHORITY” and “NT SERVICE”

I can find many info on what is "NT AUTHORITY" slash "something". Same for "NT SERVICE". But not for the part before the slash. I run into them from time to time in my work. I might receive ...
4
votes
1answer
33 views

Does Operating System modify BIOS in any way?

I am reading the book: How Computers Work: The Evolution of Technology and in Chapter 4 the author says: The operating system does not work alone. It depends not only on the cooperation of other ...
0
votes
1answer
34 views

Cant load any os installation on laptop

So I have downloaded Kali operating system and checked on my main computer (not laptop) if I burned it correctly to the DVD. The disk was running fine and the os installation showed up. However, when ...
0
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0answers
19 views

Install Windows 7, keeping pre-installed Windows 8 (dual boot)?

I have a Samsung notebook with pre-installed Windows 8: how can I install Windows 7 in dual boot? I have read there might be some problems, since Windows 8 runs on GPT partitions, and Windows 7 might ...
0
votes
2answers
244 views

Windows 8.1 shows activated in computer property, but i encounter message saying 'windows will expire soon'

I have got my Lenovo Z50-70 about one month ago with Windows 8.1 Installed. It keeps flashing the message 'Your Windows will expire soon' But when I check activation status it shows me its ...
0
votes
0answers
26 views

Edubuntu stuck on installation

I've had this problem using multiple discs on multiple drives on this one computer. I'm trying to install edubuntu 12.04 on an old desktop. It boots to the disk, I select english and then "install ...
0
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0answers
18 views

Why do UIDs start at 0 but PIDs start at 1 in Unix?

During a discussion of Unix operating system concepts, the question was raised, and no one really seemed to be sure. It seems against "the Unix Way" for things to be inconsistent that way, yet it ...
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0answers
22 views

How to transfer OS from failing hard disk to new external drive?

I have an old Vista Laptop whose hard disk is failing. For various reasons I must have the same exact system back again. I copied the entire OS on the C drive over to a new external drive and made it ...
2
votes
1answer
53 views

Connecting to host OS database from guest OS VirtualBox virtual machine

I’m using Pentaho BI server in a CentOS VirtualBox machine, and now I want to connect it to an SQL Server database that I am running in my Windows host OS (localhost). Is there a simple way to do ...
0
votes
1answer
19 views

how to enable pci hotplug support in ubuntu 13.04

Kindly help. I have a pci-based wifi adapter which is not getting detected when i plugged it into the laptop. OS: Ubuntu 13.04 Kernel version: 3.8.0-19-generic
12
votes
4answers
267 views

Which multi-user operating systems allow a user to see the current command line of other users?

I was reading the manpage of unzip, and ran into the following -P password use password to decrypt encrypted zipfile entries (if any). THIS IS INSECURE! Many multi-user operating ...
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votes
1answer
11 views

Time Machiine Volumes owned by root

I recently set up time machine to back up to two external USB drives. backups are proceeding fine, but the drives are owned by root and I can't access them via "enter time machine" or via normal ...
0
votes
2answers
753 views

Booting from USB with UEFI bios to install Windows 8.1

I have a Lenovo 11e Yoga laptop. I have installed a new, blank SSD in the system and now I want to reinstall Windows 8.1 (which is what the laptop came with). I created a bootable USB stick using ...
0
votes
1answer
32 views

Prompting for sudo password in a setuid root binary

I have a setuid root binary, with_sudo.bin, with the following source code: /* with_sudo.c */ #include <stdio.h> #include <sys/types.h> #include <unistd.h> #include <stdlib.h> ...
1
vote
1answer
43 views

AMD processor families and models

I want to use hardware performance monitors on my AMD Opteron 6376 processor. Unfortunately, AMD has many manuals and I can't figure out which one I need from this (partial) list: ...
6
votes
1answer
107 views

How do non-realtime OSes capture audio without dropouts when sample rates are so high?

If I plug a line or USB microphone into my PC, I can record audio at 44.1kHz. That's one sample of audio about every 23 microseconds. The audio wave must be sampled and played back precisely or it ...
1
vote
1answer
57 views

After formatting External Harddrive, Why do hidden OS folders $RECYCLE.BIN, System Volume Information get created

My antivirus ESET Nod 32 was flagging up a virus found in my C:/$Recycle.bin folder, after reinstalling fresh OS I decided to store some things on an external Harddrive and dumped to another PC. My ...
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1answer
29 views

Why can't I install any OS on samsung

I have laptop call it SAMSUNG OS: WINDOWS 8.1 UNILINGUE 6 BITS (6.3 VERSION 9600) Model: 300E5E/300E4E/300E5V/300E4V BIOS: P02RBE i'm trying to install any OS on it but no luck even i use usb ...
0
votes
1answer
33 views

Can't boot to the original windows 8.1

After purchasing an SSD, I decided to install Windows 8.1 on it. I originally had Windows 8.1 on my Western Digital Hard drive. But now, I cannot boot to it and there is no option to select an ...
0
votes
0answers
20 views

Not showing bootmenu

I had both Ubuntu 12.04 and windows 7 on my Hp desktop and it was working properly.Now the problem is when I tried to boot the system it is not going to the boot menu instead it continuously blinks ...
0
votes
1answer
43 views

windows 8 boot error

Hi I am using Sony Vaio laptop with windows 8 OS, when I power on my laptop blue screen appears and it says your PC needs to be repaired, a required device not connected or cannot be accessed Error ...
1
vote
1answer
21 views

What factors can affect a disk's seek time?

sorry for the beginner question. I am learning about how fast a disk can do its process (read/write) and move between tracks. One if the factor related to this is disk's seek time. I am curious, in ...
1
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3answers
79 views

How does a driver actually communicate with an hardware device? [closed]

I already know what a driver is and in the answers of this old question What is a driver, and how does it work? you can find some simple and high level definitions of what a driver is. My question is ...
1
vote
1answer
68 views

How does sleep system call works?

An application may ask the OS to pause their process for 0.5 seconds, but how does that work? The CPU doesn't simply stop running for that 0.5 second as other programs work well simultaneously, so ...
1
vote
1answer
47 views

Sublime Shortcuts at OS level

I love Sublime text as many other people do. I love its shortcuts. But whenever I'm editing text somewhere else, I keep on wanting to do Ctrl+L to select the whole line, Ctrl+Shift+Down Arrow to ...
0
votes
2answers
72 views

Install windows 98 on my PC [closed]

I want to install windows 98 on my PC. But it says that windows 98 is supported by the system. Here are the specifications of the PC Processor - Core 2 Quad 6600 Mother Board Chip set - G 41 Ram - 4 ...
0
votes
3answers
61 views

Two CPUs as a Single System

I don't know whether this is a foolish question or not. I have Googled a little and posting this one. Is there a way to make two separate dual core systems to run as a single quad core system under a ...
0
votes
0answers
24 views

Windows 7 back up DVD's

I have a laptop running on windows 7 home basic. It got infected with viruses and i'd like to re-install windows 7. When i bought this laptop 4 years ago,i did not know much about computers and I made ...
0
votes
0answers
23 views

How to query if a wlan interface is in monitor mode?

I am trying to write a shell script to query whether a wireless interface is in monitor mode or not. I was thinking about querying a file in the linux(debian) by doing a cat /proc/.. file system to ...
1
vote
1answer
43 views

How does a operating system pick up data from different file systems

I'm trying to understand this. Let's say Windows for example. It uses NTFS. If one attached a USB stick to their computer, this file system would most likely be FAT32. Or if we were connected to a ...
9
votes
10answers
3k views

Can a single OS installation on a SSD be shared between a desktop & a laptop?

Recently purchased a SSD and was wondering if there was an Operating System that allowed you to swap between 2 different machines (multiple hardware profiles? in this case my laptop / desktop) ...
1
vote
0answers
60 views

Enumerating and connecting to named pipes

In windows Named pipes are available for IPC (interprocess communication) and are used both locally and remotely, Access to the remote named pipe contained in IPC$ share is done via SMB protocol,How ...
0
votes
1answer
75 views

Can I uninstall Windows 8.1 from my current computer and put it onto a new motherboard? [duplicate]

I recently started looking into parts to build a new PC from scratch and was wondering about the operating system. I bought a full version of Windows 8.1 and installed it onto my current computer ...
0
votes
0answers
23 views

Unable to install GNOME (BackTrack5) onto IBM ThinkPad R40

I recently acquired 3 IBM ThinkPad Laptops - An A31, R40, and T42p. The A31 I was able to successfully install GNOME or BackTrack5 onto via a GNOME.iso burned onto a disk with AstroBurn. The A31 now ...
0
votes
2answers
49 views

Are I/O operations faster on the beginning of a hard disk drive than on its end?

I saw that I/O operations are faster on the beginning of a hard disk drive than on its end. Is that true and if so, why?