Technology And Computer|

Article by pvyas

Marvell Technology Group Ltd., a company that makes chips for a range of high tech products, communications equipment, cellphones, etc, has planned to launch a new kind of computer. The company has named it “Plug Computers”. Like its name this device would be plugged in to home electrical sockets and would be of socket like size. Yet it will have enough power to manage user’s digital media and enable them to view it over the Internet from outside the home.

In today’s digital world we store each and every information in the digital form as texts, images, videos in digital cameras, cellphones, notebooks. In such a way we are storing our personal information in dispersed style – in the form of files, that make them inefficient as well as risky. Losing a laptop or mobile phone will cost us losing a precious photo or video.

Marvell is promoting the “plug computers” as a perfect solution for this. The idea is to have an ultra-small computer plugged into an electrical socket. Despite the small size the plug computer will have enough processing power and network connectivity to manage and serve media stored on an attached thumb-drive or hard drive. You can access the plug computer over your home network, enabling you to get at your files from wherever you needed in your house.

However this idea is not new and Apple’s Time Capsule works a little like that. It acts like a central repository for data by wirelessly backing up all the connected Macs. HP’s MediaSmart Servers are a host of “smart” external hard drives connecting a PC via USB and store your media longterm, and serve it to connected TVs and audio systems without needing the PC’s intervention.

Marvel is planning to miniaturize all this technology and make it small and convenient. The company is also emphasizing on the green aspects as well by maintaining the eco friendliness of the plan. Plu computers are supposed to draw less than 5W of power that is much less compared to a PC running as a media server.

Company is planning to launch it on a small and economic-enough scale. Marvell will be sourcing the chips while partner companies make the software & hardware. The price is interesting targeted at that makes this idea different from other tech solutions.

Article by Bruno Wall

It’s utterly frustrating that my computer is running very slow. Admit it – when you first bought your computer, it was in crisp condition. The computer delivered all the requirements stated on the specification. You could work with it efficiently and not run into any problems. Now, a very slow computer is affecting productivity negatively. It takes forever to open a simple application. There are many times when the screen suddenly freezes or shows the dreadful Blue Screen of Death. It’s very taxing to keep on restarting the system. Despite using different operating systems already, it still ends up that way. These are just some of the problems that occur when my computer is running very slow.There are many factors behind a slow-running computer: viruses, spyware, low hard disk memory, hard drive fragmentation, registry problems, etc. The moment the computer acts up, check the source of the problem and act on it immediately. Addressing computer problems in their early stages is better than waiting for the problem to escalate.One simple tip you should follow is to refrain from opening multiple programs at the same time, especially if the program or software consumes a lot of RAM. All the programs that you use in your computer rely on RAM memory. If you want to play games, play music, and surf the web at the same time, you need to increase your RAM.Viruses and spyware can highly affect the speed of your computer. Computers that normally work fine but suddenly slow down are usually affected by a nasty virus or spyware. Virus and spyware steal your computer’s resources, explaining the sudden dip in speed. Be wary of the malicious elements in your computer because they can slow down your computer and destroy your files and folders. My computer is running very slow because it is susceptible to viruses and spyware, thanks to the hours spent downloading files off the Internet. Install a reliable anti-virus and anti-spyware and regularly use them to scan for suspicious culprits in your computer. Keep your anti-virus and anti-spyware software updated so that they can detect the new culprits.When my computer is running very slow, checking the hard drives sometimes help in determining the problem. The hard drive is a storage place for files from your computer. One of the signs is that your hard drive is going beyond 90% storage capacity causing your computer to slow down. Remember, you have to maintain at least 10% free space to ensure that the computer can still run at the desired speed. If you can’t bring yourself to delete files and folders, you can transfer them to an external hard drive or burn them in a CD.One decade ago, defragmentation was the easiest way to rehabilitate a fragmented hard drive. Although defragmentation is an old way of solving computer speed problems, it’s still needed once in a while when files get fragmented badly. Defragmentation will ensure that the files are fragmented efficiently.Lastly, many people should know that many computer speed problems can be attributed to a problematic registry. The registry is where your computer saves its settings and preferences that are required for the computer to function well. When my computer is running slow, seeking the help of a registry cleaner often helps.

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In a Linux operating system based computer, directories, blocks, sockets, files, and other items are referred by their corresponding file descriptors. File descriptor is one of the significant data structures of Linux operating system. It is very essential for the file descriptor to be consistent for proper working of your system. In case it is damaged, you can not access your precious data from the disk and face severe data loss situations. In such cases, you need to opt for Linux data recovery solutions.

If you encounter any error from your system related to file descriptor corruption, it can be due to corruption to the Linux file system. File system corruption is a major reason of data loss and cause serious problems for you. For a practical instance of this problem with your Linux system, you may encounter the following error message when you attempt to access data from your Linux hard drive-

“Bad file descriptor”

The above error may also occur while booting your system or mounting a hard drive volume. It renders your precious data inaccessible. At this point, you need to find out the root of this problem and fix it using Linux recovery solutions.

Grounds of the problem-
You may encounter this behavior of Linux operating system due to any of the following reasons-

Linux uses /dev/null file that removes all data, which is written to the file after reporting that write process is completed successfully. You might encounter the file description problems if the file is deleted.
If this error occurs while accessing any file from the hard drive, it can be due to corrupt disk blocks or file system corruption.

Resolution
Try using the below methods to sort out this issue-
To fix overwritten or deleted /dev/null file problems, you are required to replace the file with suitable iNode.Run fsck command on the affected Linux hard drive to resolve file system inconsistency and hard drive integrity issues. Before you run this command, file system must be un-mounted and system must be running in single-user mode.

Restore data from the most recent backup. It is an efficient Ext3 recovery solution to get your precious data back.If none of the above methods work, use third-party Linux recovery software to perform data recovery Linux. The applications are capable of retrieving your significant data in all data loss situations.

Sometimes when you try to install device drivers on your Linux system, you might fail to do it. It could be due to incompatibility of the operating system Kernel with your device driver or device.

To work around this issue, you need to install the latest version of Linux kernel. It may include ‘forcedeth’ patch, which is capable of resolving most of the incompatibility issues.

In some cases, after installing the latest version of Kernel, when you reboot the Linux system, you might face the following error message:

“fsck.ext2: No such file or directory while trying to open /dev/hda8. The super block could not be read or does not describe a correct ext2 file system. If the device is valid and it really contains an ext2 file system (and not swap or ufs or something else) then the super block is corrupt, and you might try running e2fsck with an alternate super block: e2fsck -b 8193 <device> fsck failed.”

After this error message, neither the system boots nor any file can be accessed.

Grounds of the issue

As stated in the error message, this problem generally occurs due to super block corruption or file system corruption.

è Super block and file system are two most important data structure of Linux system. Proper functioning of both these is required for ensuring effective working of the system.

After corruption, the operating system could not locate the file and thus can not retrieve it.

Resolution

To work around this problem, you need to install a fresh copy of super block and file system. It is possible through formatting of the hard drive and reinstallation of operating system.

Though, it will remove the errors but will also erase all the data stored on your hard drive. It is the worst scenario of data loss and needs Linux data recovery to get it fixed.

Linux data recovery is feasible with the application of third party Linux recovery software known as Linux data recovery software. Linux recovery software is easy to use and thus allow you to have simple and fast data recovery Linux.

Stellar Phoenix Linux Data Recovery is the most advanced Linux recovery software offered by the data recovery giant- Stellar. This data recovery Linux software works well in all data loss cases and allows Linux data recovery for all sorts of files.

Stellar Phoenix Linux Data Recovery software is powerful enough to carry out efficient scanning of entire hard drive and extract all lost data from it. The user interface of this software is very interactive and thus does not require any sound technical knowledge from users’ side.

The Ext4 (Fourth Extended File System) is an advanced journaling file system, developed for Linux operating system. It is successor of Ext3 file system. Ext4 has removed the 64-bit limits of Ext3 file system as it was developed as series of the backward compatible extensions. It has great stability and performance features, which make it more powerful than earlier file system of Linux operating system.

The journaling feature of Ext4 file system prevents file loss and need of Linux Data Recovery solutions, in case of system crash and unexpected system shutdown.

Under some circumstances, you may lose your valuable files from the Ext4 file system volume due to numerous reasons. The reason could be anything like-

• Accidental deletion of the important files.

• Formatting of Ext4 file system volumes unintentionally or intentionally.

• File system corruption.

• Virus infection or damage caused by other malicious programs.

In such cases, you must have an absolute backup of your valuable files. However, if the backup is not available, you face serious file loss situations and need Data Recovery Linux to work around the problem.

Recover Lost Linux Files Using Extundelete Utility

The extundelete is a command-line utility in Linux operating system, which helps you to recover lost or deleted files from Ext4 file system volumes. This utility uses the significant information stored in journal of Linux hard drive volume for retrieving the lost or deleted files. It works only on the Ext4 and Ext3 file system volumes.

This command-line tool is capable of recovering both the file names and contents of the deleted files. It is able to retrieve a deleted file just after parsing journal file. The utility is developed to perform in a fast way when you have to recover the files from large Ext4 file system volumes.

Although, extundelete utility works pretty effectively in various file loss situations, but it cannot handle situations like file system corruption and hard drive formatting. At this point, Ext4 Recovery software come for your help.

These are powerful and advanced third-party tools, which carry out in-depth scan of entire hard drive and extract all lost, missing, and inaccessible data from it. They perform quick, easy, and safe Linux Recovery in all data loss situations, with interactive user interface and read-only behavior.

Stellar Phoenix Linux Data Recovery software recovers lost Linux files from hard drive, USB drive, and network mapped volumes. It supports recovery from Ext4, Ext3, Ext2, FAT32, FAT16, and FAT12 file system volumes. The software works well with all major distributions of Linux operating system, including Red Hat, SUSE, Debian, Mandriva, and Ubuntu.

Data loss is a terrible situation, which may occur to any system, irrespective of the operating system and hardware platform. Sometimes, you may find that your Linux computer does not boot properly or you can not find stored data on your Linux hard drive. This behavior leads to data loss. Data loss occurs due to numerous reasons, related to system errors and user errors.

In such situations, a complete backup of your significant data proves to be of great help. However, if the backup is either not available or not updated, you have to opt for Linux Data Recovery solutions to get your precious data recovered.

Your precious data from Linux hard drive may get lost because of a number of reasons, which include:

• Accidental deletion of important data files or unintentional hard drive formatting.

• Virus has infected your system and damaged its significant data structures.

• File system is corrupted due to virus attack or improper system shutdown.

• Operating system has malfunctioned.

The list of data loss reasons can be very long. When you face data loss due to any reason, the very first thing that you need to take into consideration, is to find out an appropriate solution. Below are some common Linux Recovery solutions, which can be used even by a layman to retrieve lost data:

• Restore data from backup- A backup is a copy of your original data on Linux hard drive, which can be used to restore data in case of data loss.

• Use Ext3grep utility- Is an inbuilt utility of Linux operating system that helps you recover deleted files from Ext3 file system volume.

• Use Extundelete tool- It helps you retrieve lost files from Ext4 and Ext3 file system volumes of Linux hard drive.

• Use third-party Ext4 Recovery software- These are advanced and powerful applications, which methodically scan entire hard drive and extract as much data as possible from it.

These applications perform absolute and effective Data Recovery Linux in all cases of data loss. They come equipped with interactive and simple graphical user interface to ensure easy recovery in all data loss situations. With read-only and non-destructive conduct, the software are totally safe to use.

Stellar Phoenix Linux Data Recovery software recovers lost, deleted, missing, and inaccessible data from all types of storage devices. It can be used with all major distributions of Linux operating systems, including SUSE, Debian, Red Hat, Fedora, and more. The software supports recovery from Ext4, Ext3, Ext2, FAT32, FAT16, and FAT12 file system volumes.

Today, the Linux operating system has carved a niche of its own. It has got a dedicated category of users who will happily pay for it if it ever comes with a price tag. The Linux system is secure, reliable, fast, and does not require hardware/software drivers to install them on the system. Having said that, even such a robust operating system can face corruption. Corruption can occur due to various reasons such as power outages, corrupt file system, human errors, damaged operating system, etc. In such cases, you should try performing appropriate corrective measures to sort out the issue. However, if you are unable to do so then you should use a third-party Linux data recovery software to perform Linux recovery.

Consider a scenario wherein you are working on a Red Hat Linux system. Suddenly, there is a power outage and the system shuts down unexpectedly. When you try to switch on the system, you fail to do so.

Cause:
The cause of this situation is that the Linux system has corrupted because of power outage.

Resolution:
If the problem is because of having a faulty hardware like bad hard drive or memory chip, the file system check may not be sufficient to resolve this problem. This happens particularly when the file system is corrupted. In such cases, the Red Hat boot process will produce an error message and guide you into a shell so that you can perform the file system repair yourself.

When the recovery shell dismounts all the file systems to mount the root file system in a read-only mode, you can perform full checks on it. To do this, you should run the e2fsck utility on the corrupted file system that will be able to resolve all the inconsistencies. Exit the shell and restart the system. The system will function normally now.

However, if you still are unable to recover the system then you should use a third-party Linux data recovery software to do the needful. Such read-only tools are able to recover the data safely without overwriting the existing data.

Stellar Phoenix Linux Data Recovery is a Linux recovery software that enables you to recover data from the corrupted Linux systems. It is supported by various Linux distributions such as Red Hat, SUSE, Debian, Caldera, Mandrake, Sorcerer, TurboLinux, Slackware, Gentoo, etc. This Linux data recovery software is able to perform ext2 recovery, ext3 recovery, and ext4 recovery. In addition, it can recover data from FAT12, FAT16, FAT32 file systems as well. This Linux recovery software is compatible with Windows 7, Vista, Server 2003, XP, and 2000.