Showing posts with label library. Show all posts
Showing posts with label library. Show all posts

Sunday, 7 November 2010

Another perspective of PHP as a programming language

Learning PHP wouldn’t be that difficult for beginners, if they have some prior exposure to other programming languages like C, C++ or Java. Most of the coding paradigms like conditional structures. Loop blocks are very similar to that of other high level languages. PHP runs with most of the webservers and run in many top operating systems. 

Ever since PHP is projected as a main stream programming language, it has been considered mainly for developing dynamic web pages. Apart from web applications, PHP is a strong contender for developing standalone applications also. PHP-GTK is a combination of PHP with Gimp Tool Kit (GTK) framework that enables development of standalone UI applications without the need of any webserver. Even more interesting, PHP scripts can also be used for embedded applications development. Unbelievable!, have a look here.

Recent releases of PHP also include support for object oriented programming. PHP provides many inbuilt libraries as reuse components and new libraries are imported easily. These libraries improve the robustness and flexibility of the language. This enables new developers to focus on the application logic rather than worrying about the functionalities. Having good knowledge of the available libraries enables rapid development of applications.
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Tuesday, 1 December 2009

Windows 7 users hit by glitch

Microsoft's Windows 7, the hottest operating system packed with several new features and which is selling like hotcakes, is now making millions of users worldwide frustrated with an unique problem called 'black screen of death'.

The error appears to occur after logging on to the affected systems, rendering the computer unresponsive, the software giant has acknowledged.

The black screen of death is a play on the 'blue screen of death' colloquialism used for the error screen that has plagued Windows users over the years, The Daily Mail reported.

The company said it was investigating a disabling glitch that seems to particularly affect its latest operating system.

However, it denied reports that its latest monthly security update has caused the serious system problems.

"We have conducted a comprehensive review of the November Security Updates, the Windows Malicious Software Removal Tool, and the non-security updates we released through Windows Update in November," Microsoft said in a blog posting.

"That investigation has shown that none of these updates make any changes to the permissions in the registry. Thus, we don't believe the updates are related to the 'black screen' behaviour described in these reports."

Software firm Prevx had earlier suggested that the blank screen problem was caused by Microsoft's latest security patch. However, it retracted from its claim later.
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Wednesday, 28 October 2009

How to shift from XP to Windows 7


Microsoft's much-awaited operating system Windows 7 is finally here. After the disappointing performance of Vista, Microsoft is banking high on Windows 7 to give it the much required fillip in the PC market.

Two-year old Vista failed to make a dent in the market. The OS' biggest rival turned has been not an OS from a rival company or from the Open Source community, but Microsoft's own operating system XP. According to Forrester Research (done few months ago), 86 per cent of corporate PCs continue to rely on the eight-year-old Vista predecessor Windows XP.

However, most analysts believe that it is time that XP users too start planning their migration path to Windows 7. Here's a guide for XP users to help them smoothly migrate to the new operating system, Windows 7.

Which version to install?

Windows 7 packs both 32-bit and 64-bit installation discs. 64-bit operating systems can handle large amounts of memory roughly 4GB RAM. However, not all computers are 64-bit capable.

To check, right click on My Computer and click Properties. If you don’t see "x64 Edition" listed, then you are running the 32-bit version of Windows XP. If "x64 Edition" is listed under System, you are running the 64-bit version of Windows XP and can run the 64-bit version of Windows 7.

How to check compatibility with your hardware

To check for the Windows 7's compatibility with your computer's hardware, devices, or programmes that might affect the its installation, download and run the free Windows 7 Upgrade Advisor.

It will list any issues that it finds and gives recommendations on what to do before you upgrade to improve your PC's compatibility with Windows 7.

Moving files and settings

Microsoft recommends using Windows Easy Transfer, a free download, which will help users move their files and settings to another location before they install Windows 7. Later they can use Windows Easy Transfer again to move files and settings back to PC after Windows installation is completed. However, Windows Easy Transfer doesn't move programmes. Users will have to reinstall their programmes manually after Windows 7 installation is complete. Windows Easy Transfer will provide you with a list of programmes that you are currently using with Windows XP.

In case you don't go for Windows Easy Transfer, you will need to copy files manually to an external location, such as CDs, DVDs, an external hard disk, or a USB flash drive before installing Windows 7, and then move them back after Windows installation is completed.

Installing Windows 7

To get started, connect your PC to the Internet so that you can get installation updates during the process. Select either the 32-bit or 64-bit Windows 7 installation disc, depending on your system requirements.

Enter the Windows 7 installation disc and Setup should start automatically. If it doesn't, click Start, click My Computer, open the Windows 7 installation disc on your DVD drive, and then double-click setup.exe.

On the Install Windows page, click Install now. On the 'Which type of installation do you want?' page, click Custom. Choose the partition containing Windows XP (this is often the computer's C: drive), and then click Next. (Do not select your external USB hard drive.) In the Windows.old dialog box, click OK.

Moving your files and settings back

After the installation is over, users can run Windows Easy Transfer again and move files and settings back to the computer.

Be sure you run Windows Easy Transfer before you reinstall your programmes. This is because Windows Easy Transfer moves your files back to where your old programmes will expect them to be when you reinstall them.

Ensure that your external hard disk or other storage device that contains Windows Easy Transfer migration file is connected to the computer. Click the Start button, click Computer, and under Hard Disk Drives, double-click your storage device. Browse to the location where you saved the Easy Transfer file, called Windows Easy Transfer - Items from old computer, and double click the file.

On the `Choose what to transfer to this computer' page, a user can decide how the user accounts from Windows XP are transferred to Windows 7.

Reinstall programmes and update drivers

Once your files and settings are back on your computer, you can reinstall your programmes and check for new or updated drivers.

Windows Easy Transfer provides a report detailing the programmes you used in Windows XP that you might want to reinstall. To reinstall your programmes, you need to use the installation discs or setup files.
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Monday, 26 October 2009

What's new in Windows 7


Microsoft's Windows 7 is finally here. The new perating system (OS) is the the company's most important release after the disappointing performance of Vista, its earlier release. With Windows 7 Microsoft aims to once again strengthen its grip on the PC market.

Here's looking into all that's new in Windows 7.






File folders can now be organized into "libraries."

You can have a photo library, for instance, that gives you quick access to pictures in folders spread out over your hard drive, or even several hard drives. This is great because many applications don't automatically put files into Microsoft's My Documents and My Photos folders, and tend to deposit content in their own folders. The new arrangement also makes for easy backups.

Multitouch sensing

Windows 7 can sense if you use more than one finger on your touch pad or touch screen, allowing for neat tricks such as spreading your fingers to zoom into a picture, just like on the iPhone. This isn't revolutionary per se - computer manufacturers have bolted multitouch sensing on previous versions of Windows. But it does make it easier for them to include advanced touch capabilities, and many of them are planning to do so. That is what could really revolutionize how we use computers.

64-bit operating system

For a lot of users, the step up to Windows 7 will also mark a transition to a 64-bit operating system. That means computers will now be able to use a lot more Random Access Memory, or RAM, for better performance in demanding applications such as video editing. Vista and XP came in 64-bit versions in addition to the regular 32-bit versions, but the XP version was never popular, and the Vista version became mainstream only last year. But 64 bits will be standard on Windows 7, installed on nearly all new computers.

Faster search

Windows XP users have a lot more to gain by going to Windows 7. Vista introduced some great features, such as fast searches of the entire hard drive that of course are present in 7 as well. Windows 7 addresses Vista's problem of resource hungriness. The boot time was fast, and so was the time taken to come out of the hibernation mode. Reviewer Benny Har-Even in IT PRO found that "Windows 7 brings a more responsive and sprightly feel."
It also seems to work with the smaller and cheaper netbooks that’s fast getting popular. Reviewer Adrian Kingsley-Hughes writes in ZDNet, "Windows 7 works on netbooks, but if you push the system the same way as you push a desktop system then you might need to add more RAM. On top of that, remember that Windows 7 takes some 7.5 GB of disk space, so you need to factor this in. My advice would be not to bother upgrading an existing netbook unless you really feel you want a particular Windows 7 feature. Wait for Windows 7 netbooks to arrive on the scene as some of these will hopefully come with 2GB of RAM fitted."

Better desktop organization 

For those who use a number of applications and files at the same time, there's a new facility that helps to reduce desktop clutter. You can now drag them and stack them in groups on the taskbar.

And what's more, if you hover the mouse over, say, the Windows Explorer stack, each window in it will appear horizontally as thumbnails, and you can click on the one you need to start using it. Right clicking on a stack gives a 'jump menu' that lets you see your most recent files. You can also 'pin' files that you use regularly on to a stack, so that they are always there on top of a stack.

Removing clutter with a shake 

If you have a number of windows open and you want to focus on one and avoid the clutter around it, just take the mouse to that window's titlebar and shake it. Everything else disappears. Shake the same way again, and all others reappear.





Remote media streaming 

This one wasn't there in the beta version but was available on the RC. It allows users to access all the files on their home computer remotely, somewhat like how Slingbox allows users to remotely access the TV channels they get on their home TV.


Windows XP mode  

Users who like to keep their old stuff longer will like this. It allows you to run a XP application on Windows 7. But Preston Gralla of ComputerWorld who tested the feature says home users are not likely to have a great experience with it.

"Sharing files between the two environments (XP and 7) will be a challenge... (and) it's not designed for games," he says. However, he finds it a great tool for businesses that have already sunk money into XP applications. Microsoft says small businesses using, say, Tally accounting solutions on XP will be able to continue using those on Windows 7.

Less security irritants 

Like Vista, Windows 7 will ask you twice if you really want to make changes to your settings or install programmes, for the sake of security. But Windows 7 does it less often, and the prompts can be turned off.

One big trouble with Vista was that each time a change was made to the system, a dialogue box would pop up asking you if you were ok with the change being made. It was designed as a security measure, to keep you aware of hackers trying to write on to your system. But it proved a huge annoyance for users installing new applications frequently. Windows 7 now allows you to set the level of information you desire.

Device compatibility

Microsoft's Nash says almost all devices will work with Windows 7. "The customer will not have to enqure whether a device he is buying (printer, fax machine, smart card reader, network controller, in fact, anything) will work with the OS," he says. The OS also identifies the device being installed and offers appropriate follow-on options. 






 
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