iPad, the Apple’s latest product which has announced to release this year. iPad is not a replace for any of the Apple products. It has more features like Amazon’s e-paper Kindle.

Specification and Features

Its operating system is similar to iPhone’s operating system and has custom designed A4, Apple 1GHz Processor. It has 1024 x 768 resolutions, 9.7 inch LED touch screen, 1.5 pounds weight, 0.5 inch thin and it has around 10 hours of battery life as well. iPad has the fasters built-in 802.11n Wi-Fi connection, Bluetooth 2.1 + EDR and 7.2 Mbps 3G data speed. There are particularly designed games and apps available for iPad and an iWork suite which contains word processing, spreadsheet and presentation software especially for business use also announced. The starting price will be around $499 (16 GB). If you want to use AT&T connectivity, which is Apple recommended, another $130 will be added to the price. Apple’s iBook the virtual bookshop is one of the main features in iPad. You can turn pages with a single tap in the right-hand margin.

In addition, you can have a bunch of photo album in your iPad, and when it’s charging state, you can use it as a digital photo frame. Moreover, its high-resolution screen makes it perfect for watching any kind of video such as HD movies, TV shows and music videos. It has a unique YouTube app where you can easily navigate videos and organize videos. With the iPod application, you can browse, organize and listen to music with the powerful built-in speaker. The iTune store lets you to browse, buy music, TV shows or you can buy or rent movies with thousands of collections or you can sync with your Mac or PC to share the contents through iTune. There are around 140,000 applications available for iPad and you can easily browse, buy and download them from App Store.

The Google powered helps you to navigate with high-resolution satellite images where you can use your current location as well as you can get the directions. To taking notes, iPad has an onscreen keyboard and in landscape view, you can see your list of notes and the current one will shown win a red circle. From the Home Screen, you can have access to everything in your iPad in a tap and you can move apps around the screen in any order you want. Finally, the Spotlight Search allows you to search across iPad and its built-in apps.

Lack Of Functionalities

Even though iPad has the entire above-mentioned feature, it has failed some functionality as well. Due to lack of multitasking that means that you cannot listen to music while editing a photo. It’s a major issue in iPad. It does not have a camera. Even the iPod nano has a camera, so a business product without a web cam or at least a normal cam. So no video chatting, no photo snaps. It does not include a USB port, so file transfer between other devices will be difficult and inconvenient. Users have to depend on a USB adapter. Most of the users never accept this. iPad doesn’t support Flash. Which means you cannot view Flash embedded sites and applications. The main arguments against Flash running on the iPad are that it’s a resource hog and a security risk, but the lack of Flash support is nonetheless a hindrance for users. While the iPad’s display has been praised as crisp and sharp, its screen — LED-backlit with In-Plane Switching (IPS) — has its downsides. The iPad’s screen is not as power efficient as OLED devices, which don’t drain batteries as quickly. Moreover, LED screen tends to be harder on the eyes than the e-ink screens used on eReaders such as the Kindle. Apple has its own App Store for iPad and it has a lot of restriction on apps like no porn, nothing that infringes on the Apple trademark etc. The Free Software Foundation has already criticized the product, saying iPad is bad for freedom.

People have to think is it worth to buy this product for $500? Moreover, user has to depend on the iStore.  We can expect more features and bug fixed updates in future. However, for now its people have to decide do they really want to replace their current device to iPad.

References

• (n.d). Retrieved on January 2010 from huffingtonpost.com: http://www.huffingtonpost.com/2010/01/29/apple-ipad-review-photos_n_441770.html?slidenumber=Dpqk1VkFkhM%3D&&&&&&&&&
• (n.d). Retrieved on January 2010 from apple.com: http://www.apple.com/ipad/
• (n.d). Retrieved on January 2010 from sindhtoday.net: http://www.sindhtoday.net/wp-content/uploads/2010/01/apple-ipad_tablet.jpg

See Also

Your are here: Home // Posts Tagged With Enterprise

As you already know Java EE platform is a much more mature platform for developing distributed enterprise software applications. Since its release (in 1999) the adaption of the developers and the usability of the customers increase incredibly contrasting with the other major platforms. So far so good, different kinds of innovations were implemented such as frameworks, tools, deployment capabilities… 

Your are here: Home // Posts Tagged With Edition

As you already know Java EE platform is a much more mature platform for developing distributed enterprise software applications. Since its release (in 1999) the adaption of the developers and the usability of the customers increase incredibly contrasting with the other major platforms. So far so good, different kinds of innovations were implemented such as frameworks, tools, deployment capabilities… 

Your are here: Home // Posts Tagged With JAVA EE

As you already know Java EE platform is a much more mature platform for developing distributed enterprise software applications. Since its release (in 1999) the adaption of the developers and the usability of the customers increase incredibly contrasting with the other major platforms. So far so good, different kinds of innovations were implemented such as frameworks, tools, deployment capabilities… 

Your are here: Home // Posts Tagged With 6

As you already know Java EE platform is a much more mature platform for developing distributed enterprise software applications. Since its release (in 1999) the adaption of the developers and the usability of the customers increase incredibly contrasting with the other major platforms. So far so good, different kinds of innovations were implemented such as frameworks, tools, deployment capabilities… 

Avatar is one of the blockbuster movies of 2009, which has written and directed by James Cameron, the ‘Titanic’ director. It’s mixed with Action, Adventure, Sci-Fi and Fantasy and the story has taken place in the year of 2154 on planet Pandora, a moon in the Alpha Centauri star system where humans are aliens. The name Avatar refers to the genetically engineered bodies used by the humans to interact with the Na’vi – the natives of the Pandora.

Development

The film Avatar had been in development since 1994 bye James Cameron, who wrote an 80-page script for the film in two weeks. Cameron has stated that “every single science fiction book I read as a kid”. He announced about filming the Avatar after completing the Titanic. From January to April 2006, Cameron worked on the script with Dr. Paul Former, who developed the Na’vi language and culture. The budget for the film is $237 million, with $150 million for promotion. Most of the live action scenes were shot in Wellington, New Zealand on sets constructed by a massive team of 150 contractors.

The Technology

Performance Capture

Cameron first introduced the motion capture technology in Total Recall, with the first CGI human movements. But this had some limitations, in particular the actor of the character being portrayed. Moreover, the actor’s expressions cannot capture with this technology. CGI is traditionally done by placing reflective markers all over an actor’s face and body, which are then interpreted by computer technology to create digitized expressions for CG characters. Cameron and his team developed a new image-based facial performance capture technology, requiring the actor to wear special headgear rig equipped with a camera, which is placed inches from their face to capture and digitalize every muscle contraction or expression.

Animation

The digital animations have done by the Weta Digital in New Zealand, which has owned by Peter Jackson. They’ve transferred basic renderings into photo-real images, using lighting, shading and rendering. The realism was extended to each leaf, tree, plant and rock, which were rendered in WETA computers. In addition, a team of artists designed the props and weapons for the Na’vi and humans. These digital designs have taken to complete over one year of time.

Stereoscopic 3D Fusion Camera

The production partner Vince Pace and James Cameron developed this camera system. This camera was used to bridge up the gaps between the scenes and artistically formed an untraceable connectivity between the live action and the computer-generated scenes.

Virtual Camera/Simul-Cam Technology

The combination of the Virtual Camera and the Simul-Cam gave the best features of the 3D and the CGI technologies for Avatar. The Virtual Camera simulated a camera that was fed CG images by supercomputer surrounding the volume. This allowed amplification of each small adjustment on the virtual production stage, from camera movement to actor interaction. The simul-cam fed, in integrated real-time, CG characters and environments into the live action Fusion 3D camera eyepiece, allowing the director to direct virtual scenes on Pandora the same way he would a live-action scene.

The Software Used In The Making Of Avatar

There are many companies and their software product has involved in the development of the film Avatar. The company list has given below.

• Industrial Light and Magic, USA (most of the character design, modeling and effects)
• Weta Digital, New Zealand (most of the character design, modeling and effects)
• Stan Winston Studios (most of the props, including the AMP suit)
• Framestore, UK (Sully’s arrival at Hell’s Gate and two other shots)
• Hybride, Canada
• Prime Focus, USA – Frantic Films is mentioned for the same thing but not officially credited – (design and compositing of the control room screens, HUDs, etc)
• Look Effects, USA (compositing)
• Hydraulx, USA
• Giant Studios, USA (motion capture)
• Blur, USA (space shots of ISV Venture Star)
• Pixel Liberation Front, USA (screens and HUD design)
• Lola VFX, USA (digital cosmetic)

The Main Software Used Has Given Below

• Autodesk Maya
• Pixar Renderman for Maya
• Autodesk SoftImage XSI
• Luxology Modo (model desing)
• Autodesk 3ds max (space shots, control room screens and HUD renderings)
• Autodesk MotionBuilder (for real time 3d visualisatons)
• The Foundry Nuke Compositor (image compositing)
• Autodesk Smoke (color correction)
• Autodesk Combustion (compositing)
• AVID (video editing)
• Adobe After Effects (compositing, real-time visualizations)
• PF Track (motion tracking, background replacement)
• Adobe Illustrator (HUD and screens layout)
• Adobe Photoshop (concept art, textures)
• Adobe Premiere (proofing, rough composition with AE)
• Many tools developed in-house
• Plug-ins for each platform

Avatar made a big revolution in the 3D and Sci-Fi films. Moreover, the film was a big success.

References

• (n.d). Retrieved on 2010, January from scriptphd.com: http://www.scriptphd.com/?p=1257
• (n.d). Retrieved on 2010, January from twin-pixels.com: http://www.twin-pixels.com/software-used-making-of-avatar/
• (n.d). Retrieved on 2010, January from scienceprog.com: http://www.scienceprog.com/technologies-used-in-avatar-movie/
• (n.d). Retrieved on 2010, January from twin-pixels.com: http://www.twin-pixels.com/wp-content/uploads/4054882656_1b4c62a3cb.jpg

Google Calendar is an online service provided by Google Inc. This is giving all the facilities for the user which is generally given by e mail client software or event management software.  And this is a totally online service, unlike installed PC software, so you can access your calendar anywhere from the globe as long as you have internet connection. Same as Google’s popular G mail, Google Calendar also a Rich Internet Application.

Getting Started

Access

You can access Google calendar at the main navigation bar at the top of Google home page. This may be located under the more links in there. To operate you will require a Google account. If you are already a Gmail user you can use the same account. If you are totally new to Google services when you try to access Google calendar you will be prompted to create a new account.

Layout

Once you access Google calendar at the left had side you can see few link and month view of a calendar. In addition to that there will be a form to switch between calendars of you have many. In the main body of the web page there will be time slots. You can select different time slots using the tabs displayed at the top right. At the upper top right corner you can locate the link to access Settings.

Configure

Before you use the Google calendar you should configure it according to your requirement. For that you should go to settings page. You can access setting using the link at the top right corner of the web page.

General

In here you can control the general behavior of the calendar. It’s important to select the country and the time zone correctly. In addition to that you control select time format, date format and many more parameters.

Calendars

In here you can create many instances of Google calendar. This will be useful when you sharing calendars with many different groups.

Mobile Setup

This is the most interesting and important feature in the Google Calendar. In here you can configure your mobile phone with Google Calendar. After that you can receive SMS notification for the events you are going add. Once you add your mobile phone number in here it will send a verification SMS with a code. There is a text field to enter verification code. Once you enter that you are ready to receive SMS notification for free.

Labs

In the labs section there are many components and add-ons develop my 3^rd parties to improve the service of Google calendar. These components may contain bugs, so use with due care.

Start using Google Calendar

Create Event

There are many ways to create event in Google calendar. The easiest way is click on a specific time slot. In the pop-up a window you can add further details and add event. Or you can click on the “Create event” link at the left top corner of the page. There is another interesting way to add event which is “Quick add”. Once you click the quick add link at the left top corner of the page you can simple type the details of event in simple English. It will automatically add the event to your calendar.

Reminder

When you create an event there is a option panel. There you can add a reminder to the event. Te reminder can be E mail, pop up or SMS. The option of SMS would only appear only if you have configured your phone with this.

Guests

There is another option panel to add guest to the event you are going to create. When you add a guest you can select the privileges given to him. You can add guests from your Gmail contact list too.

More About Google Calendar

Google calendar is a real live example to prove the power of rich internet applications. Previously we used calendar comes with mail client applications to manage our events or may be some other installed event management software. With this powerful web application we can do all the above work by simply looking up a URL in the web browser. The main problem with this kind of rich internet applications is you cannot do anything when there is no internet connection. But Google developers have come up with a smart solution for this with Google Gear. If you have installed Google Gear on your PC you can click on the Offline link at the top right corner. Then it will store important data locally on your PC to run Google Calendar even when there is no internet connection. You can Sync your data periodically. In addition to that Google calendar supports variety of mobile devices including iPhone and Nokia S60.

Next possible development in Google calendar will be integration with G mail. Normally we use calendar software with our mail client. But so far I didn’t notice such a feature with Google calendar. Furthermore Google developers can integrate this will Google Docs as well.

This web application will help you to manage your all the events in your busy life.

References

• (n.d.). Retrieved January 2010, from Onewebhosting.com: http://onewebhosting.com/blog/wp-content/uploads/2009/03/google_calendar.gif

See Also

Blu-ray disk was introduced as a replacement for traditional DVD. It’s underlying technology is optical storage which is  as same as CD/DVD and it’s main usage is storing high definition videos, Play Station 3 games, and other data up to 50 GB. Blu-ray disc allows around 10 times more data storage as it uses a 400nm blu-violet laser wavelength while a standard DVD uses a 650nm red laser. With single layer, it can store up to 25 GB and with dual layer, it can store up to 50 GB. These are the standard Blu-ray drives’ storage. Now 200 GB discs are available, and 100GB discs are readable without extra equipment or modified firmware. It has the same physical dimension as standard DVDs and CDs.

History

The Blu-ray Disc Association developed Blu-ray disc. The first Blu-ray disc prototype was unveiled at the CEATEC exhibition as DVR Blue in October 2000. On February 19, 2002, the project was officially announced as “Blu-ray”. On October 4, 2004 the 20^th Century Fox joined hands with BDA’s Board of Directors. The first BD-ROM players were shipped in mid-June 2006. The first movie released in Blu-ray is 2003’s Charlie’s Angels:Full Throttle. This release used the standard DVDs MPEG-2 compression method.

The Technology

Laser and Optics

To read and write data the Blu-ray disc uses a blue or violet laser, which is operating at a wavelength of 405nm. The diodes are InGaN (Indium Gallium Nitride) lasers that produce 405 nm photons directly, that is, without frequency doubling or other nonlinear optical mechanisms. Conventional DVDs and CDs use red and near-infrared lasers, at 650 nm and 780 nm, respectively. The blue-violet laser’s shorter wavelength makes it possible to store more information on a 12 cm CD/DVD-size disc. The minimum “spot size” on which a laser can be focused is limited by diffraction, and depends on the wavelength of the light and the numerical aperture of the lens used to focus it. By decreasing the wavelength, increasing the numerical aperture from 0.60 to 0.85, and making the cover layer thinner to avoid unwanted optical effects, the laser beam can be focused to a smaller spot. This allows more information to be stored in the same area. For Blu-ray Disc, the spot size is 580 nm. Blu-ray Discs feature improvements in data encoding that further increase the capacity.

Hard-coating

To avoid the scratches, the Blu-ray disc has scratch-protection coating names Durabis.

Blu-ray with Java

The Java platform for Blu-ray players is called BD-J, which is based on JavaME Personal Basis Profile (PBP) v 1.1. It contains the additional APIs such as JavaTV and special Blu-ray API. In addition, it is based on a subset of JavaSE 1.4.2, so it uses the standard JVM. This includes Vector graphics, network support and file system access etc. The network connectivity is mandatory for Blu-ray profile 2 with support of TCP/IP and HTTP. For security, the secure connection contains the Java Socket Extension. A Blu-ray play can contain flash disks, a hard-disc or a USB port for extra memory. The file system classes allow accessing the file systems.

The BD-J platform uses AWT for its Graphical User Interface (GUI) with support of a remote control navigation. The Java Media Framework (JMF) is used for playback of the content on the disc. With the Java sandbox security, the user only allowed to access the disc publisher allowed servers. The main reason for incorporating Java in Blu-ray players it to get better possibilities when creating menus, in contrast to DVD players which use a simple MPEG based technology. Another basic feature is the possibility to add interactivity while playing the movie.

The Blu-ray Profiles

Each Blu-ray player must adhere to a specific profile. This specifies such things as the memory requirement. All profile with video requires a full BD-J implementation. This is a short summary of the current profiles:

• 1.0 – This is the profile that is used today. It requires that the player has at least 64 KB persistent memory.
• 1.1 – This becomes mandatory on all players that are manufactured after November 2007. The memory requirement is increased to 256 MB. The players must have a secondary video decoder and a secondary audio decoder. The secondary video decoder is used for picture in picture, whereas the secondary audio could be used for audio commentary etc.
• 2.0 – This is called BD-Live and this requires the player to have network connectivity. The memory requirements are set to at least 1 GB. The memory is not limited to built-in memory, but could also be an external memory, such as an USB memory stick.
• 3.0 – This is an audio only profile. This does not require BD-J.

The Blu-ray with Java platform can bring a new revolution in the field of movie publishing. We can expect our favorite movies with a very good quality in near future.

References

• (n.d). Retrieved on January 2010 from blog.jayway.com: http://blog.jayway.com/2009/12/11/blu-ray-and-java/
• (n.d). Retrieved on January 2010 from kombo.com: http://ps3.kombo.com/images/content/news/blurb_blu_ray_logo_20100106.png

Cloud computing is a distributed technology which delivers hosted services over the internet to provide easy access to IT services. These services are very flexible. A user can obtain a little or a big part of the service which is managed by the service provider.

There are two types of clouds available: Public cloud and Private cloud. A public cloud can be accessed by anyone on the internet but the private cloud is accessible only for the limited number of users. When creating the private cloud using public cloud resources, it is called virtual private cloud.

Software-as-a-Service (SaaS)

This type of service allows thousands of users to access a single application through the browser or some kind of front end portal using multi-tenant architecture where a single instance of software runs on a server, serving thousands of customers. It’s a profitable system for customers, where there’s no need for investing in servers and software licenses. In the service providers’ point of view, its just one application to maintain, so maintenance costs are very low. SaaS is commonly used on HR applications. But, it can be anything from web based email services to inventory control systems.

Platform-as-a-Service (PaaS)

This is a variation of a SaaS. It provides a development environment for developers to create applications on the platform over the internet using development tools hosted on the service provider’s platform. Usage of this service is not totally convenient to developers, as the development tools are limited to vendor’s architecture. But they can achieve  predictability and pre-integration.

Infrastructure-as-a-Service (IaaS)

This type of services provides virtual server instances with a unique IP address and storage. Users can access the server using the service provider’s API to start, stop and configure the server. In the enterprise, cloud computing allows a company to pay for only as much capacity as is needed, yet purchase more capacity whenever required.

Web Services In The Cloud

Rather than delivering the whole application, this system offer web services APIs to developers to develop services over the internet. They’re available as discrete business services to the total APIs offered by Google Maps, ADP Payroll Process, the US Postal Service and Bloomberg.

Managed Service Providers (MSP)

A managed service is an application exposed to IT rather than to end-users. These service providers provide infrastructure management services such as network-based services, applications and equipment to enterprises on subscription basis. In addition to these services, the MSP can manage and integrate a range of enterprise networks associated activities including Web hosting, Virtual Private Network (VPN), unified messaging, video networking etc.

Commerce Services Platform

Commerce Services Platform enables service providers and software companies to become solution providers, as this is a hybrid of SaaS and MSP. They’re most common in trading environments, such as expense management systems, that allow users to order travel or secretarial services from a common platform that then coordinates the service delivery and pricing within the specification set by the user.

Internet Integration

The integration of cloud-based services is in its early days. OpSource, which mainly concerns itself with serving as SaaS providers, recently introduced the OpSource Services Bus, which employs in-the-cloud integration technology from a little startup called Boomi. SaaS provider Workday recently acquired another player in this space, CapeClear, an ESB (enterprise service bus) provider that was edging toward b-to-b integration.

Future Of Cloud Computing

In future, for the security purposes, the large enterprises can be building their own private clouds and the cloud computing service providers will support information security as well. The enterprises will become part time cloud-computing vendors and you need only the browser as a development tool. Game Servers will be the most interesting cloud computing in future.

References

• (n.d). Retrieved on 2010, January from infoworld.com: http://www.infoworld.com/d/cloud-computing/what-cloud-computing-really-means-031?page=0,0
• (n.d). Retrieved on 2010, January  from techtarget.com: http://searchcloudcomputing.techtarget.com/sDefinition/0,,sid201_gci1287881,00.html
• (n.d). Retrieved on 2010, January from zenmediastudios.com: http://www.zenmediastudios.com/_uploads/2009/09/cloud-computing.jpg

Dropbox is an online file backup and sharing system which is providing similar functionality as a SVN server, but with very simple and user-friendly design. So that even a General user can use this software and he don’t even have to bother that there is a file backing up system running on his PC. All the activities will be handles by the Dropbox behind the screen. Furthermore this can be used as a tool to share your files with your friends in a highly secured way. In addition to that it provides a service to share your files publicly and share them as an online photo gallery.

Getting Started

Before you start the Dropbox service you have to install the PC software which is provided by them. You can follow this link to download it. Once you download and install the Dropbox software it will create a folder name “My Dropbox” in you’re my documents folder. Before you start using the service you must create a Dropbox account and it’s a part of the installation process. Then all you have to do it move your important files to “My Dropbox” folder. All the files there will be copied to your Dropbox account space. Furthermore all the changes you will make to the files inside the “My Dropbox” folder will be updated to your Dropbox account space. Those files will be saved in your Dropbox space in the case you need a backup. The total process is automated and you don’t have to bother. You can treat the “My Dropbox” folder as any other local folder in your computer.

There are two pre created folders inside you’re my Dropbox folder. You can use these folders to share your files easily. When you put a file in the Public folder, it will create a URL for the specific file. So that can be share with any one even outside the Dropbox. Once you put your some images in the Photos folder, it will create a online photo album. You can create your own folder in side and that will be the name of the Album.

Options For Users

PC Software

Dropbox PC software provides the file backup and sharing service on a personal computer. Once you install it on your PC it will create folder locally and synchronize it with the web copy of files. To indicate the Dropbox is running there will be an icon in system tray and that icon will display the state of the system. From that icon you can access preferences and in there you can do changes to the application including My Dropbox folder location.When you go and right click on a folder My Dropbox there will be a sub menu related to Dropbox functions including sharing and show delete files. And by double clicking on the system tray icon you can open you’re my Dropbox folder.

Mobile Software

There is a free iPhone application is provided to interact with Dropbox. In there is doesn’t keep a local copy of files but give a listing. By clicking on a file we can open it. In addition to that, like in the PC application there is the facility to share a folder and the content of the folder will be automatically synchronized with the web copy of files.There are some special features in iPhone Dropbox application. In there you can take a picture or record a video and put it directly in a Dropbox folder. After that you can share it with your friends. For that you can use Public and Photos folders as well.

Web Interface

The web interface provided is having most updated and comprehensive features. In there you can manage the web copy of the files. It’s given the facility to upload, download, create new folder and share files inside that. Furthermore there is an option to download a whole folder as a ZIP file.At the top navigation bar there are links to display recent activities and shared item status. If you click on the show deleted files it will display the files you deleted recently and yet you can undelete. This is a really a important feature. Using this you can recover a file you delete from your PC which was in you My Dropbox folder. You can see the undelete link in the drop down menu in the specific deleted file or folder.

Portable Version

There is a portable version of Dropbox and its provided by the Dropbox community. Using that software you can have a copy of My Dropbox folder in your portable data storage device, like your USB pen drive. You can download Dropbox Portable here. When you start it for the first time closely follow the instruction given by the installation process. Once you successfully set it up in your USB drive, you can have a copy of Dropbox files in there which is synchronized with the web copy.

Features

Backup Space and Synchronizing

Dropbox Is going you 2GB of space and you can upgrade it up to 5GB by introducing new people. You will get extra 250MB per head up to 5GB. If you need further space you can purchase it. And the My Dropbox folder will be automatically synchronized to the web folder as a background process. It’s looking for changes that the user going to do for files and once you do some changes it updates it in the web folder. In this process latest edited version will always get the priority. For a general user, he doesn’t have to bother about anything, but work in My Dropbox folder like in any other local folder. It appears to be Dropbox is using some compression to transfer files over the internet and it will save your bandwidth. When you move files in your local folder, it won’t be re uploaded to save bandwidth. In addition to that like in any other SVN server you can recover the previous versions of the files (Sub versioning) and undelete the recently deleted files.

Sharing and Security

And Dropbox provide advance collaboration features. You can share a folder with a give a person and all the parties who share it can have a copy of file and Dropbox will synchronize it. In addition to that there are predefined folders to share files easily named Photos and Public. Using that you can have online photo albums and public links to your online files. And it uses SSL to transfer files and advance encryption when they save it in the web folder to ensure maximum security.

Technology

Dropbox follow few steps when it synchronizes files.

• Upload all the files in the local folder to the web folder.
• Make an index of all the files and save it locally and in web folder as well.
• Continuously compare the file index in web folder and local folder.
• Use compression and encryption to save bandwidth and ensure security.
• If there are any changes in index update the latest edited files in all the copies.
• Save copy of deleted files and previous versions in the web folder for recovery purpose.

This technology seems simple but the outcome is outstanding. This is the general functionality in the entire SVN servers, but Dropbox has made it easy to all the general users.

Future Of Dropbox

I have identified some problems in Dropbox system. The main drawback is there is no way to put folders which are on different location on the hard drive in to the Dropbox. In that case I have to move all of them to the My Dropbox folder. Its better if the user can add folders to Dropbox which are in different location in Hard drive by right click on them and “Add to dropbox”.  And in the PC software there is no way to accept the Sharing invitation. For that user must go to web interface of follow the link in the mail notification. When someone shares a folder, there is no way to limit the privileges. All the shared parties can make changes to the files in the folder. I wish if there was a feature to control sharing and editing privileges. In addition to that there is no way to restrict accessing an album in the photos folders. Basically any one can access it. There must be a way to share an online photo album with specific person or group. And it’s better to introduce a compression to transfer files or improve the current compression. I hope Dropbox development team will be concern about above issue in their future development.