Operating Systems
Showing posts with label Operating Systems. Show all posts
Showing posts with label Operating Systems. Show all posts

Weather Application Fedora 19

September 08, 2013 Add Comment

Weather Application Fedora 19


Gnome 3.8 was shipped, along with the easy to use program to view the weather. But defaul program only displays the temperature in degrees Celsius. A bug has been sent to study in future versions may appear in the program settings window. In the meantime, in order to display the temperature in degrees Celsius, it is necessary to do following items:

su -

yum install dconf-editor

Start the dconf-editor and follows the menu here: org -> gnome -> gweather. 
Changing the value of the item on the temperature-unit centigrade:






Its so simple to view template records on PC.. Great fun

Operating System Story

March 04, 2012 Add Comment

Operating System Story.




Peripherals and system parts are a collection of electronics that work together in order to perform a specific task. The program that every computer uses to control and manage all these parts is called the operating system (OS).

For example, a user that wants to write a document and print it out on a network printer needs an application like Microsoft Word to accomplish this job. Microsoft Word works with the OS in order to accomplish all the word processing tasks. The operating system controls all the input and output functions. All the personal computers, the servers and the handheld devices require an OS in order to function.

The operating system works like an interpreter between software applications and the hardware. An individual interacts with the computer hardware through an application, like Microsoft Excel, Adobe Photoshop, etc. Software applications are made for a particular purpose. On the other hand the OS is responsible for the communication between the software application and the computer's hardware.

When a PC is powered on it loads the operating system from the hard disk into RAM. The part of the operating system that interacts directly with the hardware is called kernel. The part of the operating system that it is visible to the user is called shell. The user can use the shell from the command line interface (CLI) or from the graphical user interface (GUI).

The user that uses the CLI interacts directly with the OS in a text-based environment by typing commands at a command prompt. The computer executes the command and provides textual output. The user can also use the GUI and control the computer from an environment that uses graphical images, multimedia, as well as text. This is more user-friendly and requires less knowledge than CLI. Therefore, most users work with GUI environments. Microsoft Windows and Linux operating systems offer both GUI and CLI.

All the modern operating systems allow the user to multitask. The OS keeps track of which resources are used by which software program.

In order to work with devices that are not directly attached to the PC, a special software application must be installed that allows a device to send and receive data from the net. This is called redirector and usually it is an integral part of the OS but sometimes you need to install it separately as a network client. After you install it, the OS becomes a network OS (NOS).

Develop Websites with Bluefish in ubuntu

April 06, 2011 Add Comment
Develop Websites with Bluefish in Ubuntu



Linux is at the forefront of web development, and Ubuntu is a great distribution to use to build and design a website for the first time. Recently, I've been developing web applications using frameworks, and Linux in general makes these things quite a bit easier. Therefore, I figured I should present some of the basic tools you can use to create, develop, and host a website. This may abstract a bit away from the idea of "applications" in and of themselves, but I thought you may all be interested anyway.

The most logical first step for most users is selecting a development environment. Today, I'll highlight Bluefish. Later on, I'll focus on a WYSIWYG editor. (Which, by the way, is kind of difficult to find. Please, if you have any ideas, leave a message in the comments.)

Of course, to put your webpage on the Internet, you'll probably want to use a reliable web hosting. There's about a million out there, and it's hard to figure out the differences between them. I used to have a site on Bluehost, but I eventually cancelled because I thought their support was poor, and I didn't want to fax in a copy of my driver's license just to have SSH access so I could use Rails. I switched to ThinkHost a few months ago, and I've been really happy thus far. They offer reliable Linux hosting with unlimited bandwidth, space, and domains. Better yet, the servers are powered with wind and solar energy, and they plant a tree on your behalf.

Bluefish is a code editor, so users should have a basic understanding of XHTML and CSS, along with any other development languages. I learned HTML rather painstakingly from an outdated code reference, and I don't recommend you do it that way. Instead, try HTML & XHTML: The Definitive Guide published by O'Reilly, which can help even the most talented developer learn new tricks. In fact, it taught me all about the <label> tag, and I felt kind of dumb for previously embedding form labels in only a paragraph tag and wrestling with CSS, but alas...




One of the nicest things about Bluefish is that it uses 30 to 45 percent less memory than other editors. This makes quick edits less of a hassle. Sometimes, other editors can be too clunky, and I found myself reverting to a console-based text editor to make a minor change, but Bluefish should stop this from happening. It has built-in project support, so you can easily open multiple files and keep them organized in the right path. It has all the standard stuff, like line-numbers, search and replace, and code highlighting for languages like HTML, Ruby (go Rails!), Python, and PHP. Best of all, the menu bar allows you to instantly drop in code that developers use often.
Bluefish allows you to connect to a remote server and edit files, so here's a quick guide to using Bluefish with ThinkHost. This tutorial assumes you are using GNOME, though I'm sure you can do the same thing with KDE.
Click on the "Places" menu, and select "Connect to Server...".
In the dialog box, type in your FTP address in the "Server" box. You should be prompted for a username and password.
Now, open up the mounted server in Bluefish, and now you can easily edit and save all of your files on Thinkhost.

Ubuntu Will NOT Be Next

April 01, 2007 Add Comment

Ubuntu Will NOT Be Next



Xandros and Linspire recently followed Novell and drank the Koolaid. Possibly because those two are known for ease of use (like Ubuntu), possibly because Ubuntu is popular, there have been whispers that Ubuntu is next. Ubuntu is not next. The SABDFL has decided to clear up the rumours. Canonical is not talking to Microsoft about patent deals, except to say "no." Mark makes it clear that as long as Microsoft cannot substantiate any claims, there will be no negotiations. I suppose this means that if Microsoft were to tell us all what they want to have fixed, he'd be willing to work on clearing up the violations or, as I would like to see happen, work on stripping Microsoft of those patents (the stupid, obvious ones).

He goes on to say that he would like (as, I think, many of us would like) to see Microsoft's talk of interoperability become a reality. He suggests a few things, the gist of which involve Microsoft learning to conform to standards instead of making up their own. Not to burst his bubble, but the W3C has been trying that for years. Opera is still the most standards-compliant browser (despite lacking Microsoft's extensive resources), and Internet Explorer is still the least standards-compliant browser. They may have made an attempt to get closer to standards with IE7, but really, the thousands of programmers they have couldn't do it? The millions of dollars Microsoft has couldn't hire programmers who could do it? No, much more likely is that Microsoft considers standards-compliance to be very very low-priority. Vendor lock-in by making as many things proprietary as possible is a very high priority to them. Thats seems hard to achieve on a browser at first glance, but when you consider all of the sites which use broken code to display correctly on IE and end up breaking on Firefox, there end up being a lot of people who won't switch to good browsers because their favorite website uses bad code and "doesn't work" on standards-compliant browsers. Similarly, the harder they make it for OOo to open Microsoft Office documents, the harder it becomes for people to use OOo (unless everyone they know uses it too), and then the more copies of Microsoft Office they can sell.

Dual Boot tips multiple Operating System on one pc

November 06, 2006 Add Comment

Dual Boot tips multiple Operating System on one pc



You can install more than one operating system on your computer and choose which operating system you want to use every time you start your computer. This is often called a dual-boot or multiple-boot configuration. Windows XP supports multiple booting with MS-DOS, Windows 3.1, Windows 95, Windows 98, Windows NT 3.51, Windows NT 4.0, and Windows 2000.

Disk volumes and disk format

Each operating system must be installed on a separate volume on your computer. In addition, you must ensure that the boot volume is formatted with the correct file system. If you have only one volume, you must repartition and reformat your hard drive so that each installation can retain its own files and configuration information.

If you want to install Windows 95 or Windows 98 with Windows NT 4.0 or Windows 2000, the boot volume must be formatted as FAT, not NTFS, because Windows 95 and Windows 98 must be installed on the boot volume when more than one operating system is installed, and FAT is the only file system those systems support. Windows 95 OSR2, Windows 98, Windows 2000, and Windows XP support FAT32 volumes.

However, if you format a Windows NT 4.0, Windows 2000, or Windows XP volume with any file system other than NTFS, you will lose all NTFS-specific features. This includes some Windows XP features such as file system security, encrypting file system (EFS) settings, disk quotas, and Remote Storage. Likewise, Windows 95 and Windows 98 cannot recognize an NTFS partition and will identify it as unknown. Therefore, if you format a Windows 98 partition as FAT, and a Windows XP partition as NTFS, any files on the NTFS partition will not be available or visible if you try to access them while running Windows 98.

Operating System__________Supported File System

MS-DOS________________FAT

Windows 3.1_____________FAT

Windows 95_____________FAT

Windows 95 OSR2________FAT, FAT32

Windows 98____________FAT, FAT32

Windows 2000__________FAT32, NTFS

Windows XP___________FAT32, NTFS

How to create a multiple-boot system with MS-DOS, Windows 95 or Windows 98, and Windows XP

You will be less likely to encounter problems installing a multiple-boot system with MS-DOS, Windows 95 or Windows 98, and Windows XP if you install these operating systems in the following order: MS-DOS, Windows 95 or Windows 98, and then Windows XP.

If you have Windows XP installed on a volume formatted as FAT, and you have another free volume formatted as FAT or FAT32, you can install Windows 98 to the free volume without reformatting your hard drive.

After ensuring that your hard drive is formatted with the correct file system, do one of the following:
If you want a multiple-boot system with MS-DOS, Windows 95 or Windows 98, and Windows XP, install MS-DOS, then Windows 95 or Windows 98, and then Windows XP.
If you want a dual-boot system with only Windows 95 or Windows 98, install Windows 95 or Windows 98, and then install Windows XP.
How to create a multiple-boot system with Windows NT 4.0 and Windows XP
Using a multiple-boot system with both Windows NT 4.0 and Windows XP is not recommended as a long-term solution. The NTFS update in Service Pack 4 for Windows NT 4.0 is provided only to help you evaluate and upgrade to Windows XP.

After ensuring that your hard drive is formatted with the correct file system, install Windows NT 4.0, and then install Windows XP.

You must treat each operating system as a separate entity. Any programs and drivers you want to use must be installed under each operating system under which you want to use it. For example, if you want to use Microsoft Word on the same computer under both Windows 98 and Windows XP, you must start Windows 98 and install Microsoft Word. Then, you must restart your computer under Windows XP and install Microsoft Word again.

Notes:

If you have more than one operating system on your computer, you can set the operating system you want to use as the default when you start your computer.

Windows 95 or Windows 98 might reconfigure hardware settings the first time you use them. This can cause configuration problems when you start Windows XP.
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