DropBox

          

         Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Dropbox was founded in 2007 by Drew Houston and Arash Ferdowsi, two MIT students tired of emailing files to themselves to work from more than one computer. Today, more than 100 million people across every continent use Dropbox to always have their documents in hand, share with family and friends, and work on team projects. 

Dropbox is software that syncs your files online and across your computers. 

 Put your files into your Dropbox on one computer, and they'll be instantly available on any of your other computers that also have Dropbox installed (Windows, Mac, and Linux too). Because copies of your files are stored on Dropbox's secure servers, you can also access them from any computer or mobile device using the Dropbox website. 

With Dropbox, your files are always in sync.        

 Let's say you're editing a document in the Dropbox folder at home. As soon as you press Save, Dropbox will sync this file to all your other computers and mobile devices instantly and automatically. It's as if you saved the document to all of your computers. This gives you the freedom to work anywhere and always have the files you need. 

Dropbox lets you share files easily.       

You can easily share entire folders or photo albums with Dropbox. Simply put the folders you want to share in your Dropbox, and invite people to them. You can also send people links to specific files within your Dropbox. This makes Dropbox perfect for team projects. 

With Dropbox, online backup is automatic.        

Any file you put into your Dropbox folder is automatically backed up to our servers. Even if your computer has a melt-down, your files are safe on Dropbox and can be restored at any time. While our free 2GB account is perfect for backing up your documents, we offer larger accounts (up to 100GB) for backing up your music and video collections. 

Dropbox lets you go back in time to undelete or undo changes to files.        

Every time you save a file in Dropbox, Dropbox syncs it to our secure servers. Dropbox keeps a history of every change you make so that you can undo any mistakes and even undelete files. By default, we keep 30 days of history for all your files. We also have an unlimited undo option called "Pack-rat" 

Dropbox replaces: 
* Emailing file attachments to yourself and other people 
* Using USB drives to move files between computers 
* Renaming files to keep a history of previous versions 
* Complicated backup software and hardware

In conclusion, Dropbox makes it easy to securely share files with other people, sync them across multiple computers, access them from anywhere, and keep them safe.

Apple Vs. Linux/Ubuntu Vs. Windows

So should you buy a Windows, Linux or Mac based computer? What is the difference between them? It's a difficult decision when you are looking to buy a new computer...

What are the main differences between Macs, PC or Linux?
Nowadays, the difference between Macs and Windows is small. The operating systems have converged a great deal recently, so they are not nearly as different as they used to be. Linux is a free 'open source' operating system and often comes with the cheaper 'netbook' computers.

What do Macs do better?
Mac's tend to be more secure.  Viruses, spyware and malware are rarely an issue, so you don't have to load a ton of security software just to get onto the web. They usually connect to other hardware such as cameras and mp3 players with a lot less hassle and they have a great range of creative use -  sorting photos, making books, editing videos or composing music, all ‘out of the box’. If you have a copy of Windows, you can also run that on a Mac at the same time.

Mac technical support is also excellent. With Apple Store’s dotted all over London, you can make a free appointment with a ‘Genius’ to help you solve any issues you may have and most of the store host a range of free hour long lessons on using Mac software.

What does Windows do better?
A PC's big plus point is that almost everyone knows how to use Windows.  You probably work with one in your office. So if you don’t want to learn a new operating system, then a PC might be for you. There is also a slightly wider range of hardware and software which works with PC’s though the gap narrows every day.   Bottom of the range PCs are also cheaper than a Mac, however, when you compare the spec of a PC equal to that of a Mac the difference is a lot smaller. Vista or Windows 7? If you're buying a new computer, make sure it's installed with Windows 7. It's a smoother, faster and easier to use version of the software.

What does Linux do better?
Linux is a secure OS and works well on 'netbooks' and desktop computers.  Being 'open source' software, it appeals to those who enjoy having control over their computer but to the uninitiated, Linux can be a difficult system to understand fully.

Which should I buy?
It depends what you use your computer for.  If you are on a tight budget and just want to use email and write letters, then Windows or Linux will do the job fine. If you want to get more creative or are worried about security, then consider buying a Mac. Go to a store, play with all the machines and decide from there, which is the best for you.

Videos:

http://www.youtube.com/watch?v=0-22EpQOm8c

http://www.youtube.com/watch?v=XgGXNuGURs0

Laptop VS. Tablet

                                           
     
             When laptops entered the computer market, everyone wanted one of these small devices for computing on the go. Laptops received a lot of hype because of their portability and their ease of use. This new technology took the computing world by storm and dominated the portable computer scene until a new device entered the market: the tablet. This device offers several of the same features as laptops but with added portability. Some individuals may feel this is the new way to compute and they can’t live without their tablet, whereas others say laptops can never be replaced.

            Tablets have become quite popular thanks to their extreme portability, easy to use interfaces and the wide range of ways they can be used. In many ways, they can almost replace a laptop for someone on the go. But is a tablet really a better choice for someone over a more traditional laptop? After all, laptops can also be extremely portable and have a much wider range of tasks they can be used for.

Videos:

• Video Analysis of Laptops and Tablets 
• Another Video Analysis of Laptops and Tablets 

          The most obvious difference between a tablet and a laptop is the lack of a keyboard. Tablet's rely solely on a touch interface on the screen for all input. This is fine when it involves mainly pointing, dragging or tapping to navigate around a program. The problems come in when you have to input text into a program when such as an email or document. Since they have no keyboard, users are required to type on virtual keyboards that have varying layouts and designs. Most people cannot type type as quickly or as accurately on a virtual keyboard. Users do have the option of adding an external Bluetooth keyboard to most tablets to make this more like a laptop but it adds costs and peripherals that must be taken with the tablet.

 Result: Laptops for those that write a lot, tablets for those that do more point interaction.

 Size 

            This is probably the biggest reason to go with a tablet compared to a laptop. Tablets have the size roughly of a small pad of paper and a weight that is under two pounds. Most laptops are far larger and heavier. Even one of the smallest ultraportables, the Apple MacBook Air 11 weighs just over two pounds and has a profile that is larger than an iPad 2. The main reason for this is the keyboard and trackpad which require it to be larger. Add in more powerful components that require additional cooling and power and they get even larger. Because of this, it is much easier to carry around a tablet than a laptop especially if you happen to be traveling.

 Result: Tablets

 Battery Life 

         Tablets are design for efficiency because of the low power requirements of their hardware components. In fact, the majority of the interior of a tablet is taken up by the battery. In comparison, laptops use more powerful hardware. The battery component of the laptop is a far smaller percentage of the laptops internal components. Thus, even with the higher capacity battery of laptops, they do not run as long as a tablet. Many of the tablets right now can run up to ten hours of web usage before require a charge. The average laptop would only run for roughly three to four hours with a few systems able to stretch it out to eight hours but that still less than a tablet. This means that tablets can achieve all day usage which few laptops can achieve.

 Result: Tablets

Storage Capacity 

         In order to keep their size and costs down, tablets have had to rely on new solid state storage memory as a means to store programs and data. While these have the potential for faster access and low power usage, they have one major disadvantage in the amount of files they can store. Most tablets come with configurations that allow between 16 and 64 gigabytes of storage. By comparison, most laptops still use traditional hard drives that hold far much more. Extremely affordable netbooks still have 160 gigabytes of storage which allows for ten times the amount of data as the most affordable tablets. This won't always be the case though as some laptops have moved to solid state drives as well and may have as little as 64GB of space.

 Result: Laptops

 Performance 

         Since most tablet PCs are based on extremely low powered processors, they will generally fall behind a laptop when it comes to computing tasks. Of course, a lot of this will depend on how the tablet or laptop is being used. For tasks like email, web browsing, playing video or audio, both platforms will typically work just as well as neither requires much performance. Things get more complicated once you start doing more demanding tasks. For the most part, multitasking or graphics performance it typically better suited with a laptop but not always. Take for instance video editing. One would assume that this would always be in the laptops favor but a recent test of video editing on the iPad 2 with iMovie found its specialized video hardware actually provided higher performance than doing the same task with iMovie on a MacBook Pro. The difference is the laptop version has more capabilities which brings us to the next item to consider...

 Result: Laptops

 Software 

         The software that runs on a laptop or tablet can be vastly different in terms of capabilities. Now if the tablet PC is running Windows 7 such as the HP Slate or ASUS Eee Slate it can theoretically run the same software as a laptop but will likely be slower. This can make it easy to use it as a primary laptop using the same software used in a work environment. The two other major tablet platforms right now are Android and iOS. Both of these require applications specific to their operating systems. There are tons of programs available for each of these and many will do most of the basic tasks that a laptop can do. The problem is the lack of the input devices and hardware performance limitations mean that some more advanced features supplied by corresponding laptop class programs may have to be dropped in order to fit into the tablet environment.

 Result: Laptops

 Cost 

        Tablets are relatively new to the market and as a result, they tend to carry a fairly high price premium for the new technologies they have installed in them. The average starting price for a tablet PC seems to have settled around $499. By comparison, there are laptop computers that can be found for as little as $300 to $400. Of course, most people are probably not going to be looking at the least expensive laptop. The average price of the laptop is more around $650 which is slightly more expensive than the mid range tablet cost. Laptops still have the advantage over tablets though if you look at equivalent performance and features. After all, netbooks start below $300 but can generally handle all the same tasks as a tablet, just in a not as easy to carry or use format.

 Result: Tie

 Stand Alone Device 

       This category is describing a situation where a tablet would be your only computer system. It isn't something that many people would necessarily think about when looking at the devices but it is pretty critical. A laptop is a fully self contained system that one can use fully as a computer system in terms of loading data and programs onto and backing up. Many tablet PCs actually require an additional computer system beyond the tablet for backing up the device or even activating it. The iPad 2 is a good example of this as the first thing a user is required to do is hook it up to a PC to activate it. Now, one could do this on another person's computer but you still have the problem of backing up data especially if you want to temporarily remove an application if you have limited space.

 Result: Laptop

 Conclusion 

     As it stands, laptops still offer a greater level of flexibility when it comes to mobile computing. They may not have the same level of portability, running times or ease of use of a tablet but there are still a number of issues that tablets need to resolve before they become the main means of mobile computing. Over time, many of these issues will likely be resolved. If you already have a desktop computer, than a tablet may be an option if you use it mainly for entertainment and web usage. If it is going to be your primary computer, than a laptop is definitely the way to go.

Best LAPTOPS

Top 3 TABLETS

Links:

http://en.wikipedia.org/wiki/Laptop

http://en.wikipedia.org/wiki/Tablet_computer