Cloud computing – Basic knowledge

 

We begin with a basic understanding. What is Cloud Computing really is. It would be very helpful if we understand that. The challenge ahead is very exciting for us in this cloud computing. Many service providers will be free and that paid well. We can choose which ones fit our needs

Cloud computing is Internet- ("cloud-") based development and use of computer technology ("computing"). In concept, it is a paradigm shift whereby details are abstracted from the users who no longer need knowledge of, expertise in, or control over the technology infrastructure "in the cloud" that supports them. It typically involves the provision of dynamically scalable and often virtualized resources as a service over the Internet.

The term cloud is used as a metaphor for the Internet, based on how the Internet is depicted in computer network diagrams and is an abstraction of the underlying infrastructure it conceals. Typical cloud computing providers deliver common business applications online which are accessed from a web browser, while the software and data are stored on the servers.

These applications are broadly divided into the following categories: Software as a Service (SaaS), Utility Computing, Web Services, Platform as a Service (PaaS), Managed Service Providers (MSP), Service Commerce, and Internet Integration. The name cloud computing was inspired by the cloud symbol that is often used to represent the Internet in flow charts and diagrams."

Tags : Cloud Computing,Basic,Introduction

New IE8 still the slowest browser

Microsoft's final code comes in dead last in JavaScript benchmark tests

By Gregg Keizermay be talking up the performance boost it gave to its just-launched Internet Explorer 8, but the new browser remains the slowest of the top five on the market, benchmark tests show.

According to JavaScript rendering tests run by Computerworld, the final version of IE8 is only slightly faster than the browser's Release Candidate 1, which Microsoft delivered in January.

Computerworld ran the SunSpider benchmark tests in Windows XP three times for each browser, then averaged the scores.

Google Inc.'s Chrome led all browsers in the SunSpider tests, making it more than four times faster than IE8. Coming in second was Mozilla Corp.'s Firefox 3.0.7, followed by Apple Inc.'s Safari 3.2.2 for Windows and Opera Software's Opera 9.63.

Firefox proved to be 59% faster than IE8, while Safari was 47% faster. Opera, the slowest non-Microsoft production browser, was still 38% faster than IE8.

Microsoft, however, has continued to downplay benchmarks such as SunSpider, and instead has promoted page-load time trials that pit browsers against each other in rendering the Web's top 25 destinations. Last week, Microsoft claimed that IE8 loaded more sites faster than either Chrome or Firefox.

At the time, Microsoft's James Pratt, a senior program manager for IE, conceded that the differences were slight. But in an interview yesterday, Pratt called IE8 "highly competitive" with other browsers, and dubbed it "the fastest version of IE that we have ever released."

But he also acknowledged that speed is important to users. "We know that speed is critical to people who are using browsers today," Pratt said, "and we recognize that users have a choice when it comes to browser."

Winpim 10.1.0.2020

WinPIM is a better PIM software (Personal Information Manager) for time and contact management. It can manage your Contact, Diary, Calendar, Task, Note and E-mail, it also gives you an easy and low cost network solution for sharing all data simultaneously with everyone in your workgroup! Click to find Top 10 Reasons why WinPIM is your best choice either for personal or network use.
Contacts, Appointments, Tasks, Diaries, Notes, E-mail all-in-one.
Multi-users system, information can be shared via LAN or Internet.
Storage full contacts information, tree groups to track and organize contacts.
Drag and drop functionality makes it a snap to schedule appointments.
Prioritized to do list helps you get everything done, sub-tasks supported.
HTML and Rich text format diary with easy view.
3 types of notes helps your manage any additional information.
Multi-User, multi-accounts HTML E-Mail client with modules support.
Stand alone Reminder.
Can work with Pocket PC/Palm/iPhone/Windows Mobile devices and Outlook.
And much much more! Visit the WinPIM features page for more information!

Amaya 10.1

A complete web browsing and authoring environment and comes equipped with a WYSIWYG style of interface
Amaya is a Web editor, i.e. a tool used to create and update documents directly on the Web. Browsing features are seamlessly integrated with the editing and remote access features in a uniform environment. This follows the original vision of the Web as a space for collaboration and not just a one-way publishing medium.

Work on Amaya started at W3C in 1996 to showcase Web technologies in a fully-featured Web client. The main motivation for developing Amaya was to provide a framework that can integrate as many W3C technologies as possible. It is used to demonstrate these technologies in action while taking advantage of their combination in a single, consistent environment.

Amaya first started as an HTML + CSS style sheets editing software. Since that time it was extended to support XML and an increasing number of XML applications such as the XHTML family, MathML, and SVG. It allows all those vocabularies to be edited simultaneously in compound documents.

What's New in This Release:

· New features
· Redesign of the user interface: new toolbars, palettes, panels
· A contextual menu provides navigation and editing commands.
· Within a template instance, the contextual menu allows one to insert and append template components
· Tools can be displayed on the left, or on the right, or custumized tool by tool
· There are now two editing modes: tthe word processing mode (called Text mode) or the XML editing mode (called XML). A button allows one to switch the mode quickly.
· On/Off buttons or entries can be used to go in/out of an inline element.
· For example you click strong, enter the strong text, then click strong to close the element.
· Insert and Append commands must be used to insert before and after the selected structure element
· First implementation of Amaya themes
· Possibility to change tabs order or to display two documents side by side
· There is now an icon in each tab area to close it (not available on mac)
· The application now doesn't close when the last tab is closed
· New XHTML document allows one to create a simple document or a template instance
· Save As allows one to save without template when the document is a template instance
· The File menu gives now access to the list of recent open documents
· There is now a command Select All
· Amaya proposes new options when a table, an image or an object are created
· The links view display all elements with an id attribute as they are potential targets of a link
· Class attributes are now displayed in the status bar
· New management of the selection within tables
· Reconfiguration of menus
· Profiles for customization of the user interface
· Bug fixes
· Set the environment variable G_SLICE="always-malloc" to prevent a crash on new Linux platforms (the crash occurs as soon as a dialog is displayed)
· A reference to the current page now moves to the top of page
· Amaya generated an explicit lang="en" attribute when an element of an English document is copied and pasted into a French document
· "Preserve Lines When Pasting" didn't work correctly in MacOS X
· The Preferences dialog didn't display correctly
· In dialogs, buttons that clear an URI are now displayed close to the URI
· It's now possible to delete a link with the Link dialog
· Maps areas could be lost
· The CSS parser now detects the BOM character
· Large background images could crash the application on Windows
· When changing or deleting the same attribute for several contiguous elements, only the first element in the set has the change/deletion applied.
· Avoid several concurrent download of a document
· Dialogs are now displayed at the current cursor position
· Amaya didn't complain and could generate invalid markup for an Xhtml Strict or Basic document when an element was not inside a block element.
· On MacOS X, the menu items Copy/Cut/Paste were disabled after having double-clicked a file in the file browser.
· Fix a problem with CSS background images loading.

Google Chrome 0.3.154.3

Google Chrome is a browser that combines a minimal design with sophisticated technology to make the web faster, safer, and easier. Google Chrome also uses a brand new javascript engine (V8), which is much faster than existing javascript interpreters. This means you can create more complex and more intensive AJAX applications with fewer speed and processing constraints. Finally, Google Chrome is built on top of WebKit, so Google Chrome users will benefit from the CSS3 features being added to WebKit as those features are released.

It's Recommended

Dreamweaver CS4 beta

The public beta of Dreamweaver released by Adobe delivers significant changes to the 10-year old Web design and development tool. Not only does Dreamweaver CS4 offer a complete overhaul of the user interface, it adds many new features aimed at the “professional” Web developer. In addition, the beta expands on the powerful (and easy-to-use) Spry toolset introduced in last year's Dreamweaver CS3 release.

Integration with the Creative Suite

The most obvious change to the program is Dreamweaver CS4’s new user interface. The old Macromedia look-and-feel has finally been replaced with an interface that matches the other applications in Adobe's Creative Suite. (Dreamweaver was among the Macromedia products absorbed by Adobe when it bought its one-time rival three years ago.)

While this change will take a while for long-time Dreamweaver users to get used to, the new interface significantly improves the usability of the program. Panels and windows mesh together well, are easier to organize, move and hide, and the new interface provides the flexibility to create a working environment that’s comfortable whether you’re working on a 17-inch monitor or a 30-inch Cinema Display.

In addition, the program has taken its first step toward supporting a feature that’s been in the other Creative Suite programs for years—SmartObjects. Dreamweaver CS4 now offers support for PhotoShop SmartObjects—you can drag a PSD file into a Web page within Dreamweaver, optimize the image for the Web, and even resize it. If you later update the original PSD file, a red arrow will appear on the image inside Dreamweaver indicating that the source file has changed. You can then click an “update from original” button in the Property inspector, and a new version of the image is created.

A professional Web developer tool

Dreamweaver has always been a powerful tool that has attracted both Web novices and Web veterans. This latest version offers a slew of new features aimed directly at those that feel at home working in raw HTML, CSS and JavaScript as much as they do working with Dreamweaver’s visual, dialog-driven tools. In fact, many of the new features promote a workflow that involves working in code view alongside the visual design view.

The new related files bar, which appears between the document toolbar and the document itself, lists all CSS and JavaScript files linked to the page. (If you’re using a server-side programming language like PHP, you’ll see included server-side files listed as well.) By clicking one of the related files in this bar, you immediately jump to the code in that file. In this way, you can open a single Web page and immediately have access to other files the page references: quickly jump to the page’s CSS file, make some changes and jump back to the Web page file to see the changes.

The related files bar really shines when combined with another new addition: vertical split view. Now you can see side-by-side, a page’s raw HTML code and its visual design. Make a change in the visual view and see the code immediately updated or vice-versa. When viewing a page that has related files (for example, an attached external style sheet), you can see the visual design of the page on one side, and a related file in the other. This lets you edit the CSS code and see the changes take place visually on the Web page.

A new “code navigator” (which is really more like a “CSS navigator”) lets you view a list of CSS styles that affect the current selection: you can view all of the properties set for that style and even jump directly to the CSS code for that style. While earlier versions of Dreamweaver provide similar tools through the CSS Styles Panel, this streamlined method makes for a more efficient workflow.

If you have ever been dismayed that Dreamweaver doesn’t provide a real WYSIWYG view of your Web pages, you’ll be happy with the new Live View option. The Dreamweaver CS4 beta embeds the WebKit rendering image (the same as used in Safari), so by clicking a live view button you can actually see the page as it's rendered in a Web browser: you can even interact with the page and view JavaScript effects like rollovers, drop-down menus and tooltip pop-ups without having to switch from Dreamweaver to a Web browser.

The complementary Live Code view shows the HTML—a useful addition for pages that use JavaScript to manipulate the appearance and content of a page, or for dynamic server-side pages that require additional information from a database to display correctly.

Within live view, you can “pause” any JavaScript effects—for example freeze a drop-down navigation menu—then use the code navigator to quickly identify the CSS styles that affect the menu.

 

More than just code

But not all of the new features in the beta are aimed at those Web professionals who know how to code with one hand tied behind their backs. Several features will be a boon to less-experienced Web designers as well.

The revamped Property inspector reduces the risk of making errors when adding HTML and CSS for text. In earlier versions of Dreamweaver, you would sometimes add HTML to the page and sometimes create CSS styles, depending on which buttons you clicked in the Property inspector. This frequently led to a messy mix of strangely named styles, like Style1, Style2, and so on. Now the two functions—adding HTML and creating styles—are separated into two different views of the Property inspector.

The Dreamweaver CS4 beta also expands on the JavaScript-based Spry Tools introduced in Dreamweaver CS3. Dreamweaver’s Spry features make it easy for non-programmers to add sophisticated JavaScript-based user interface elements like drop-down navigation bars, tabbed interfaces, and user-friendly form validation. The new Spry tooltip commands lets you add pop-up information bubbles to links.

Dreamweaver CS4 also includes three new form validation widgets. The password validation widget lets you enforce rules for passwords (such as “this password must be 10 characters long and contain at least 2 numbers”). The password confirm widget forces a user to confirm the password he already entered. The radio group validation widget lets you make sure that a radio button is checked before a form is submitted.

Finally, a new HTML dataset tool lets you treat a regular HTML file like a small database system. For example, you can create a HTML table full of rows and columns of data, and use Dreamweaver to import that table into another Web page (using JavaScript and Spry). There you can present that data in a variety of different ways such as a “Master/Detail” page that lets a user view a master summary of rows from the table, click an item in the list and instantly see all of the details for that table row.

See for yourself

The Dreamweaver CS4 beta is available now from Adobe Labs. It requires either a PowerPC G5- or Intel-based Mac and OS X 10.4.11 or 10.5. The beta expires after two days unless you have an Adobe CS3 serial number. With that serial number, the beta will remain unlocked until the next version of the beta becomes available.

Unfortunately you only use the trial version for only 48 hours. For longer period you must have License.