How Operating Systems Work
Introduction to How Operating Systems Work
When you turn on your computer, it’s nice to think that you’re in control. There’s the trusty computer mouse, which you can move anywhere on the screen, summoning up your music library or Internet browser at the slightest whim. Although it’s easy to feel like a director in front of your desktop or laptop, there’s a lot going on inside, and the real man behind the curtain handling the necessary tasks is the operating system.
Most desktop or laptop PCs come pre-loaded with Microsoft Windows. Macintosh computers come pre-loaded with Mac OS X. Many corporate servers use the Linux or UNIX operating systems. The operating system (OS) is the first thing loaded onto the computer — without the operating system, a computer is useless.
More recently, operating systems have started to pop up in smaller computers as well. If you like to tinker with electronic devices, you’re probably pleased that operating systems can now be found on many of the devices we use every day, from cell phones to wireless access points. The computers used in these little devices have gotten so powerful that they can now actually run an operating system and applications. The computer in a typical modern cell phone is now more powerful than a desktop computer from 20 years ago, so this progression makes sense and is a natural development.
Watch this video—–>Operating System
These tutorials are derived from the excellent tutorials from the University of Surrey, UK.
Below is the full list of Windows Software equivalents for Linux.
eAROS Media Center
click here eAROS Media Center to enter site
eAR OS is a state-of-the-art Operating System. It can run directly from a Live-CD and optionally be installed to a hard disk. That means you can try it out before you install it – for FREE!
eAR OS comes with the very advanced and beautifully simple to operate eAR Media Center.
Furthermore, eAR OS comes with the newest version of following applications: Wine for using Windows applications, Audacity Sound and Recording Editor, Audio CD extractor with FLAC and MP3 support, k3B CD- and DVD Burner, Kaffeine for DVB-S and DVB-T TV and DVD playback, VLC for Broadband TV, Exaile audio player, Firefox Webbrowser with mediaplayer connectivity, Thunderbird E-mail/News, Pidgin internet Messenger for MSN, F-Spot Photo Manager, GIMP Image Editor, auto-started Firewall and several utilities and accessories. With its package manager you can further install more than 15000 applications via the internet for FREE!
eAR Media Center is running out-of-the-box. Tune-in the digital TV programs and rip some CD’s to the hard disk in lossless FLAC quality or MP3, watch Digital TV and DVD’s, listen to Internet Radio, view Photos, listen to Music while surfing the Internet, and Enjoy.
Peppermint is a Linux based Operating System that is Cloud / Web Application Centric, Sleek, User Friendly and Insanely Fast. Download a copy and get going today
Built for Speed
Peppermint OS was designed to be easy on your processor and system resources so you can get going and get things done…
Peppermint OS is under 512MB and easy to run as a Live CD or USB. Loads and Shuts down in Seconds…
Step-by-step installation, Works out of the box, Easy to Navigate with Automatic Updates….
Bleow are some live cd list which is used in Virtual Box
SmartOS unites four extraordinary technologies to revolutionize the data center:
These technologies are combined into a single operating system, providing an arbitrarily-observable, highly multi-tenant environment built on a reliable, enterprise-grade storage stack.
- Scale as fast and big as you need
- Trust it to keep your data safe
- Keep your system secure with “double hulled” virtualization
- Rely on It
- Use and extend freely: it’s open source
- Manage resources better
- See what’s going on throughout the software stack, in real time
Below is the link to run ubuntu on android phone
Boot Configuration Data
What is the BCD store?
The Boot Configuration Data (BCD) store contains boot configuration parameters and controls how the operating system is started in Microsoft® Windows Vista® and Microsoft® Windows Server® 2008 operating systems. These parameters were previously in the Boot.ini file (in BIOS-based operating systems) or in the nonvolatile RAM (NVRAM) entries (in Extensible Firmware Interface–based operating systems). You can use the Bcdedit.exe command-line tool to affect the Windows® code which runs in the pre-operating system environment by adding, deleting, editing, and appending entries in the BCD store. Bcdedit.exe is located in the \Windows\System32 directory of the Windows Vista partition.
more……… click here
THE OS FILE SYSTEM
The OS Files is your one-stop portal for all operating systems that run on the x86 platform. Here you will find details on future OSes, beta releases, current releases, and even older discontinued OSes.
For each of the major OSes, we cover news, system requirements, support, variants, secrets, version history, prices, comparisons, and much more! We also include important links and where you can get free OSes, betas and updates.
You can go directly to a specific OS file from any of the links above, or see the entire list of OSes within a category: Windows, Unix, Linux, DOS, and More. Our Site map also includes the entire list of OSes, indexed by category as well as alphabetically.
Here is a smaple screenshot
click here to enter the website
COMMAND LINE REFERENCE
Below is the site which provides various Command Line like Data base and Operating System.
A sample ScreenShot
Here is the link to the site Command Line