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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2
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1answer
13 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
12 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
votes
0answers
6 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
1answer
76 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
17 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 ...
-2
votes
0answers
31 views

How are Wi-Fi rays were distributed and does it get affected by common other rays? [closed]

How does Wi-Fi rays were distributed, how does the Wi-Fi rays doesnt get disturbed by common rays which was omitted by other electronic devices like TV remotes, cellphones etc… what makes it too ...
0
votes
0answers
13 views

What are the latest research topics for operating systems? [closed]

I am looking towards explaining any research paper to my class the instructor has uploaded various topics but all of them are pretty outdated so if someone here is kind enough to point me to the right ...
-1
votes
0answers
14 views

List of which binary prefixes each os uses? [closed]

In this question we're told that there are two standard ways of measuring bits... SI Prefixes (1000n - KB, MB, GB) Binary Prefixes (1024n KiB, MiB, GiB) We're also told that they're often mistaken ...
-1
votes
0answers
29 views

how to capture a handshake file to crack in aircrack-ng? [closed]

Just now I installed Aircrack-ng in my window lappy. After opening the Aircrack-ng GUI it is showing some error like give at least one capture file to crack. Can someone help me solve this? For ...
0
votes
0answers
17 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 ...
0
votes
0answers
19 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
20 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
0answers
6 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
251 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 ...
0
votes
1answer
10 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
1answer
139 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 ...
-1
votes
0answers
30 views

How can Changing an HP Chromebook 14 OS to a Windows 7 OS?

How can I take off the Chromebook OS on my HP Chromebook 14 even tho it don't have a disk drive nor can it support the files that I need for school. like the microsoft office products. and adobe ...
0
votes
1answer
21 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> ...
-2
votes
0answers
25 views

Does all laptop with 3rd gen i-7 processor have sata 3 interface [duplicate]

I am going to buy an ssd . I need to check whether I will able to make full use of ssd speed.I have dell inspiron 15-r 5520 and how to transfer my windows 8 os from hdd to ssd .
1
vote
1answer
37 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
104 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
39 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 ...
0
votes
1answer
27 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
30 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
18 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
36 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
18 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
vote
3answers
70 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
58 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
68 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
16 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
42 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) ...
0
votes
2answers
45 views

What is OS-level block? [closed]

From this question on StackOverflow: …an OS can still chain multiple blocks/sector into a single logical OS-level block to reduce space. E.g. "every 3 real blocks/sectors on the drive will be ...
1
vote
0answers
46 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
53 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
17 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
48 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?
-1
votes
1answer
34 views

The system was running slow and reboot was useless

My system was running slow, I checked the system with top, vmstat, iostat, strace and so on, but I could not find the issue. So I reboot the system but it was useless. Then I shutdown the server, and ...
0
votes
1answer
34 views

Videocard only working in safe mode

I am writing from safe-mode, because for some reason it does work in safe-mode (windows 7) though either black screens, or bluescreens on my normal windows mode, but I am extra sure, that the hardware ...
0
votes
1answer
83 views

Windows 8: Drive partition is missing

wanted to run 2 operating systems on the same laptop so downloaded manjaro ( I have windows 8). When i opened 'Gparted' (after booting manjaro) in order to partition my disk i got the message ...
0
votes
0answers
2k views

An operating system wasn't found. Try disconnecting any drives that don't contain an operating system

I upgraded a laptop to windows 8 and then started to factory reset windows 8 and left it over night! When i check in the morning it said that reset wasn't complete and it restarted the computer and ...
0
votes
0answers
22 views

Calculating average working set size

Say I want to calculate the average working set size (WSS) of this reference page string considering that the window size, delta = 3 : 1 2 310 (1 3)5 2 3 (2 4 1)10 5 5 1 1 1 2 2 5 (5 2)5 1 2 I ...
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0answers
28 views

how to check list of application running in core in windows 7

I need to know list of application (.exe) running on single core (cpu) in windows for e.g cmd.exe (application) is running on 2th core
0
votes
0answers
22 views

Graphical Performance Drastically Receded after the latest re-installation of my windows , why?

Due to virus issue and some hardware/driver issues, I re-install my Windows 7 quite often. My GPU is an AMD Mobility Radeon HD 5000 Series and it supported most of the games released up until 2014. ...
0
votes
1answer
40 views

Blue Screen STOP: 0x0000007B

I am getting blue screen like this: What i actually did is I marked my system partition as active, when restarted, I had message "BOOTMGR is missing Ctrl + Alt + Del to restart" I inserted Windows ...
0
votes
1answer
205 views

Bios not recognizing USB in EFI mode

I got a brand new Laptop with pre installed windows OS i wanted to do a clean install Okay so this is what i did i created a bootable USB of windows 8.1 Pro. Then i booted my laptop which was by ...