TheTechmadness

Repair Your Pendrive

Error 1: Pendrive not showing the actual size on formatting also.

Sometimes when you format your pen drive , it doesn't show the correct capacity of pen drive e.g. it might show 2 MB space on a 8 GB pen drive. This problem can be corrected by again partitioning your pen drive . Sometimes it might be useful to correct write protected devices. Follow below methods step by step:-

> Press WIN+R . Run dialogue box will appear.

> Type CMD and press ENTER.

> On command prompt , type DISKPART.

i.e.

C:\> Diskpart

DISKPART> list disk
DISKPART> select disk (id)
DISKPART> online disk (if the disk is not online)
DISKPART> attributes disk clear readonly
DISKPART> clean
DISKPART> convert mbr (or gpt)DISKPART> create partition primary
DISKPART> select part 1DISKPART> active (if this is the boot partition)DISKPART> format fs=ntfs label=(name) quickDISKPART> assign letter (letter)
DISKPART> list volume

>Leave steps written in color when using pendrive.

The following are common errors displayed if you miss a step:

DISKPART> clean
DiskPart has encountered an error: The media is write protected.
See the System Event Log for more information.

Resolution: run "attributes disk clear readonly" before trying to clean the volume and create the partition.

DISKPART> convert mbr

Virtual Disk Service error:
The specified disk is not convertible. CDROMs and DVDs
are examples of disks that are not convertable.

Resolution: clear all data off the disk before converting by running the clean command.

DISKPART> create partition primary
Virtual Disk Service error:
There is not enough usable space for this operation.

Resolution: run "clean" before trying to create the partition.

DISKPART> format fs=ntfs quick
Virtual Disk Service error:
The volume is not online.

Resolution: online the disk, create the partition, and convert to mbr before formatting.

The following are common errors displayed if there is a hardware problem:

DISKPART> clean
DiskPart has encountered an error: The device is not ready.
See the System Event Log for more information.

Resolution: If the event log entry states "The driver detected a controller error on \Device", the problem is likely your storage controller on your mainboard. Check your hard drive connections and reload your storage conroller driver. If the event log entry states "VDS fails to write boot code on a disk during clean operation. Error code: 80070015@02070008", the hard drive itself has failed.

The following are common errors you may see if there is a hardware problem:

DISKPART> clean
DiskPart has encountered an error: The media is write protected.
See the System Event Log for more information.

Resolution: Running "attributes disk clear readonly", as mentioned above, is the first step. Next, the disk is may be locked by an active process, in which case a reboot generally clears the error.

Error 2: The Disk is write protected.

Method 1:- 1. Shutdown your computer or laptop

2. Insert USB Memory Stick into your laptop or Computer
3. Turn on laptop and then immediately start pressing (F8) key then Advanced Boot Options screen will come up
4. Select Safe Mode with Command Prompt
5. After loading files if your USB Memory Stick drive letter is (G) for example then write as
6. C:\windows\system32>G: and press enter
7. G:\>format G: and press enter
8. If ask you (Y/N) then press (Y) and press enter
9. Now a full format will start which remove write protection from USB Memory Stick.
Note: Before removing USB from your computer, Always remove it safely by going into to my computer then right click on USB and click eject.

Method 2:- 1.Type, "Run" and then type "Regedit" and click okay.

2. Navigate to :

HEKY LOCAL MACHINE\System\CurrentControlSet\Control\StorageDevicePolicies\

3.If the above path does not exist, you will want to create the new key and lable it "StorageDevicePolicies" from within the HKEY Local Machine\System\CurrentControlSet\Control\ path.

4. Next, under StorageDevicePolicies, you will want to find or create a DWORD (32-bit) that says, "writeprotect" and ensure that its value is set to "0".

5. Close out of regedit, remove your USB key and reconnect it. After you eject it and reconnect your USB key and after you modify the registry accordingly, you should be able to access your USB key again to copy the data off and the subsequently format the drive.

Cloud computing

In this post we are going to know detail about cloud OSes, cloud storage. There will also be a comparison between different cloud storage services.

Definition:- Cloud computing is a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications.

In cloud computing, the word cloud (also phrased as "the cloud") is used as a metaphor for "the Internet," so the phrase cloud computing means "a type of Internet-based computing," where different services — such as servers, storage and applications —are delivered to an organization's computers and devices through the Internet.

Due to the cost of buying and maintaining mainframes, an organization wouldn't be able to afford a mainframe for each user, so it became practice to allow multiple users to share access to the same data storage layer and CPU power from any station. By enabling shared mainframe access, an organization would get a better return on its investment in this sophisticated piece of technology.

We run various applications, games , videos, pics, on our pc, laptops, tablets and mobiles. These apps and games are stored on the device itself. In cloud computing all these things we can store in cloud. This promotes security to a new level.

A cloud service has three distinct characteristics that differentiate it from traditional hosting. It is sold on demand, typically by the minute or the hour; it is elastic -- a user can have as much or as little of a service as they want at any given time; and the service is fully managed by the provider (the consumer needs nothing but a personal computer and Internet access). Significant innovations in virtualization and distributed computing, as well as improved access to high-speed Internet and a weak economy, have accelerated interest in cloud computing.

History:-

Cloud computing Concept emerged in the late sixties.
The idea of an "intergalactic computer network" was introduced in the sixties by J.C.R. Licklider, who was responsible for enabling the development of ARPANET (Advanced Research Projects Agency Network) in 1969.
A couple decades later in the 1970s, IBM released an operating system called VM that allowed admins on their System/370 mainframe systems to have multiple virtual systems, or "Virtual Machines" (VMs) on a single physical node.
In 1998 VPS Hosting became available – this web host improved by having partial infrastructure demand and resource size flexibility. 1997 brought Dedicated Hosting, both managed and unmanaged. This type of automated computing had dedicated servers with promises of full administrative access.
The 2000s was when automated computing became closer to what is known as “cloud” today. It came in the form of Grid/Utility Computing and had full infrastructure demand and multi-tenant, partial resource size flexibility and automated provisioning.
One of the first milestones in cloud computing history was the arrival of Salesforce.com in 1999, which pioneered the concept of delivering enterprise applications via a simple website. The services firm paved the way for both specialist and mainstream software firms to deliver applications over the internet.
The next development was Amazon Web Services in 2002, which provided a suite of cloud-based services including storage, computation and even human intelligence through theAmazon Mechanical Turk. Then in 2006, Amazon launched its Elastic Compute cloud (EC2) as a commercial web service that allows small companies and individuals to rent computers on which to run their own computer applications.

Cloud computing is a general term for anything that involves delivering hosted services over the Internet. These services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS).

IaaS :- Infrastructure as a Service is a provision model in which an organization outsources the equipment used to support operations, including storage, hardware, servers and networking components. The service provider owns the equipment and is responsible for housing, running and maintaining it.

PaaS :- Platform as a Service (PaaS) is a way to rent hardware, operating systems, storage and network capacity over the Internet. The service delivery model allows the customer to rent virtualized servers and associated services for running existing applications or developing and testing new ones.

SaaS :- Software as a Service (SaaS) is a software distribution model in which applications are hosted by a vendor or service provider and made available to customers over a network, typically the Internet.

SECaas:- Security as a service (SECaaS) is a business model in which a large service provider integrates their security services into a corporate infrastructure on a subscription basis more cost effectively than most individuals or corporations can provide on their own, when total cost of ownership is considered. These security services often include authentication, anti-virus, anti-malware/spyware, intrusion detection, and security event management, among others.

Characteristics :-

Cloud computing exhibits the following key characteristics:

Agility improves with users' ability to re-provision technological infrastructure resources.

Application programming interface (API) accessibility to software that enables machines to interact with cloud software in the same way that a traditional user interface (e.g., a computer desktop) facilitates interaction between humans and computers. Cloud computing systems typically use Representational State Transfer (REST)-based APIs.
Cost: cloud providers claim that computing costs reduce. A public-cloud delivery model converts capital expenditure to operational expenditure. This purportedly lowers barriers to entry, as infrastructure is typically provided by a third party and does not need to be purchased for one-time or infrequent intensive computing tasks. Pricing on a utility computing basis is fine-grained, with usage-based options and fewer IT skills are required for implementation (in-house).The e-FISCAL project's state-of-the-art repository contains several articles looking into cost aspects in more detail, most of them concluding that costs savings depend on the type of activities supported and the type of infrastructure available in-house.
Device and location independence enable users to access systems using a web browser regardless of their location or what device they use (e.g., PC, mobile phone). As infrastructure is off-site (typically provided by a third-party) and accessed via the Internet, users can connect from anywhere.

Virtualization technology allows sharing of servers and storage devices and increased utilization. Applications can be easily migrated from one physical server to another.
Multitenancy enables sharing of resources and costs across a large pool of users thus allowing for:

centralization of infrastructure in locations with lower costs (such as real estate, electricity, etc.)
peak-load capacity increases (users need not engineer for highest possible load-levels)
utilisation and efficiency improvements for systems that are often only 10–20% utilised.

Reliability improves with the use of multiple redundant sites, which makes well-designed cloud computing suitable for business continuity and disaster recovery.
Scalability and elasticity via dynamic ("on-demand") provisioning of resources on a fine-grained, self-service basis in near real-time (Note, the VM startup time varies by VM type, location, os and cloud providers), without users having to engineer for peak loads.
Performance is monitored, and consistent and loosely coupled architectures are constructed using web services as the system interface.
Security can improve due to centralization of data, increased security-focused resources, etc., but concerns can persist about loss of control over certain sensitive data, and the lack of security for stored kernels.Security is often as good as or better than other traditional systems, in part because providers are able to devote resources to solving security issues that many customers cannot afford to tackle. However, the complexity of security is greatly increased when data is distributed over a wider area or over a greater number of devices, as well as in multi-tenant systems shared by unrelated users. In addition, user access to security audit logs may be difficult or impossible. Private cloud installations are in part motivated by users' desire to retain control over the infrastructure and avoid losing control of information security.
Maintenance of cloud computing applications is easier, because they do not need to be installed on each user's computer and can be accessed from different places.

Cloud Solutions:-

1. Cloud storage and the cloud collaboration:-

Cloud storage is a model of networked enterprise storage where data is stored in virtualized pools of storage which are generally hosted by third parties.
Before cloud file sharing and collaboration software, most collaboration was limited to more primitive and less effective methods such as email and FTP among others. These did not work particularly well, and so the need emerged for a simple to use, yet feature rich cloud collaboration solution.
Hosting companies operate large data centers, and people who require their data to be hosted buy or lease storage capacity from them. The data center operators, in the background, virtualize the resources according to the requirements of the customer and expose them as storage pools, which the customers can themselves use to store files or data objects. Physically, the resource may span across multiple servers and multiple locations. The safety of the files depends upon the hosting companies, and on the applications that leverage the cloud storage.
Cloud storage services may be accessed through a web service application programming interface (API) or by applications that utilize the API, such as cloud desktop storage, acloud storage gateway or Web-based content management systems.

The best cloud collaboration tools:

Use real-time commenting and messaging features to enhance speed of project delivery
Leverage presence indicators to identify when others are active on documents owned by another person
Allow users to set permissions and manage other users' activity profiles
Allow users to set personal activity feeds and email alert profiles to keep abreast of latest activities per file or user
Allow users to collaborate and share files with users outside the company firewall
Comply with company security and compliance framework
Ensure full auditability of files and documents shared within and outside the organization
Reduce workarounds for sharing and collaboration on large files.

Below list gives the best top 20 cloud storage services and file hosting services:-

1. GOOGLE DRIVE(the winner) https://drive.google.com

2. DROPBOX(runnerup) https://www.dropbox.com

3. BOX https://www.box.com

4. TENCENT WEIYUN www.tencent.com/index_e.shtml‎

5. MICROSOFT ONE DRIVE(skydrive) https://onedrive.live.com/

6. BITCASA https://www.bitcasa.com

7. PCLOUD https://www.pcloud.com/

8. AMAZON CLOUD DRIVE aws.amazon.com/

9. APPLE iCLOUD https://www.icloud.com

10. SPIDEROAK https://spideroak.com/

11. CERTAIN SAFE https://www.certainsafe.com

12. HANDY BACKUP www.handybackup.net

13. BAIDU CLOUD www.baidu.com

14. CLOUDME https://www.cloudme.com/

15. CUBBY https://www.cubby.com/

16. RAPIDSHARE https://rapidshare.com/‎

17. YANDEX DISK https://disk.yandex.com

18. WUALA www.wuala.com

19. TEAMDRIVE www.teamdrive.com

20. MEGA https://mega.co.nz/

more.. sugarsync, ubuntuone, mozy, mimedia, cx ....

2. Cloud OS:-

With a Cloud operating system (also known as a Web OS), you can manage your office work, prepare projects, etc quite similar to how you do on your desktop. The beauty of the idea is that everything is stored on the Internet and hence available everywhere you go!

1. ZeroPC

ZeroPC offers you 1GB of free storage and lets you to connect cloud storage services like Box, DropBox, Google Drive, SkyDrive, SugarSync and 4Shared for access to your paperwork. ZeroPC is also available on the Android, iPhone and iPad, giving you access while on the go.
For photo lovers, it is also a great "photo management tool", linking photo & video services like Facebook, Flickr, Instagram, PhotoBucket, Picasa and Recood. Plus, it also has native apps for instant messaging, a text editor as well as productivity tools for managing documents and spreadsheets online.

2. Jolicloud(Runner Up)

Jolicloud offers you Joli OS, which you can download and install in your system (even if it’s 10 years old) or use it in the browser. Joli OS provides you with the full cloud experience – keep and use your favorite apps any time, any where. Jolicloud has over 15,000 web apps you can access using the system.

You can integrate your DropBox and Google Drive accounts with Jolicloud and there is also a ‘Jolicloud Me’ version where you can manage all of your online life at a single place Jolicloud Me currently supports Facebook, Flickr, Instagram, Picasa, Tumblr and Twitter.

3. Glide OS(The Winner)

Glide OS is a good choice if you’re collaborating for a group project. Glide team offers 30GB of free storage and you can add a total of 6 users in your account. The OS is not very pretty but is quite useful; it has additional features like email and profiles as well as basic tools like Calendar, Notes, Text editor, Presentation maker, etc required for your paperwork.

Glide also provides a syncing software for Windows, Mac OS and Linux so that you can easily sync your files between Glide HD (they call it the Glide Hard Disk) and your local storage. They also have browser extensions and a mobile version.

4. SilveOS

SilveOS is a cloud operating system built on Silverlight. You can run it in any browser with Silverlight installed. It has many built-in apps which let you write, listen to music, make notes, and even play Solitaire. You can also install Silverlight apps from the web in SilveOS.

It, however, doesn’t provide any storage so it’s not the best Cloud OS for long term work. But it’s a handy tool if you often work on computers that is not yours like the office computer or at cyber cafes.

5. ISpaces Cloud Computer

iSpaces has only the basic features for you to manage your work like Browser, File manager, Notes, Office suite (Zoho office), etc. It also has 3 Workspaces accessible from the task bar. t lets you keep your working environments organized with quick access from one Workspace to the other.

You can work on your files from Box and DropBox using the file manager. iSpaces has a simple environment for you to access your files on Box and DropBox in the same view, and you can move your files from one space to another just by drag and drop. The changes will be reflected in your respective cloud storage accounts.

6. Cloudo

Although in beta stage, Cloudo is an interesting operating system built to run in your browser. It is packed with apps like Mail, Calendar, Audio Player, RSS reader, Contact manager, Word processor, Notepad, Command Line Interpreter, Finder (to search files) etc. It provides a good interface like an operating system where you can run commands, install apps, play music etc.

It handle multi-tasking quite efficiently and let you do your tasks efficiently. It also offers an Application Manager which you can use to install more apps in your Cloudo.

7. XOS

xOS doesn’t provide a lot of customization options but they do provide a good collection of apps for personal use. It offers Web browser, File manager, Text editor, Notes, Calendar, Paint, Email client, and Canvas Rider (a bicycle game) among others.

8. ZimDesk

ZimDesk is a cloud operating system full of apps and features. It has got Custom wallpapers, Office Suite, Contact Manager, RSS reader, Calendar, Mail client, FTP client, File uploader and manager etc.

9. The Places A

It’s an another cloud operating system which offers basic apps like Radio, Calendar, File manager, Bookmark manager, Notes, Email client, etc. You can add web apps to it as links which will be opened in new tabs. It also supports Instant messaging between its users.

10. Cloudos

CloudOS is an open-source set of software services written in KRL and running on the Kinetic Rules Engine.

11. Cloudlinux OS

CloudLinux has been a key component to Funio's success since day one. Combined with CageFS, it has helped in terms of server stability by preventing the "bad neighbor effect" while increasing overall server security and density. Installing CloudLinux on a shared-hosting server instantly makes it more reliable and more secure without having to invest much effort.

13. Amoeba

amoebaOS is an advanced Online Operating System. Log in to your free account and join a cloud computing revolution that begins with great apps like Shutterborg, Exstream and Surf.

14. myGoya

myGOYA is a free online operating system. Your own personal desktop can be accessed from any Internet PC in the world and includes e-mail, chat, filesharing, calendar and an instant messenger. Manage your contacts from anywhere in the world.

15. Ghost

Ghost Cloud Computing is a leading company in the cloud computing industry specializing in cloud computing for the end user. Ghost offers individuals and businesses file storage and apps in the cloud to enable secure personal computing from any device. Ghost is distributed directly from its web site and through channels. Ghost web interface is very simple and easy to use, it make it quick and easy to manage your files and folders. You can upload data of any type to your cloud storage from any device. You can view and edit any of your files in any browser.

You can instantly share files and documents with any friend by sending them a link. Wherever you are, you can edit documents and pictures directly online within Ghost portal. It also offers full mobile support, you can browse your file and folders from your cellular device or you can mount as a Windows drive; just like a USB flash drive. You can move files between local hard disk and your Cloud File.

16. eyeOS

eyeOS is one of the most used WebOSes which is released under the AGPLv3 license and only needs Apache + PHP5 + MySQL to run. With eyeOS you can build your private Cloud Desktop. Using eyeOS Web Runner you can open your eyeOS files from your browser with your local apps and save them automatically on your cloud. In eyeOS 2.0 you can work collaboratively with other users simultaneously in the same document, it is the Safe Cloud Computing system because you can host it in your own company or organization. You will get privacy and cloud computing at its best.

17. Zimdesk

ZimdeskOS is your computer on the web – the entire functionality of a PC – online. There is nothing to install. A web browser and internet connection are all you need to access your desktop, files and favourite applications. You can access your data anytime from anywhere, from any PC.

18. Lucid Desktop

Lucid comes with lots of applications. You can browse photos, listen to music, and edit documents. It also comes with an RSS feed reader, some games, a calculator, and a bash-like terminal application. You can install additional third-party applications, which allows you do do even more!

19. icloud

Not only does it look great, has pretty much any application you might need, but also offers up to 50GB of online storage, easy sharing, and an application development feature.

20. Corneli OS

Corneli OS is another operating system besides JoliCloud which is available to download on your computer. It includes set of applications such as user manager, file manager, a Content Management System (CMS) and a database management system. It can be installed on LAMP servers and is available as free Open Source software under the GPL. It offers a Multi-user system experience and has a Virtual file system (VFS). You can also use Corneli OS (CIOS) to build other web applications and social networks. It is a kind of operating system that will appeal to IT professionals and developers.

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Repair Your Pendrive

Repair Your Pendrive

Error 1: Pendrive not showing the actual size on formatting also.

Error 2: The Disk is write protected.

Saturday, August 2, 2014

Cloud computing

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