Aakash tablet several reasons to failure

Aakash Tablet by the Indian government doubts are being raised over its efficiency and durability. If experts of the industry are to be believed, technical flaws, no hands-on experience, and the total cost of procuring it make the much-hyped gadget a disappointment for the buyers. The after sale report about the Aakash Tablet are extremely disappointing and those who bought the low cost gadget have only one reason to be happy- they are the privileged early users of the gadget. During its launch, Union HRD Minister said, “To improve the system of education in India. Soon, a 35 dollar computer … Click here to continue…..

What is the difference between an external iterator and an internal iterator? Describe an advantage of an external iterator.

An internal iterator is implemented with member functions of the class that has items to step through. An external iterator is implemented as a separate class that can be “attach” to the object that has items to step through. An external iterator has the advantage that many difference iterators can be active simultaneously on the same object.

What is the use of ErrorProvider Control?

The ErrorProvider control is used to indicate invalid data on a data entry form. Using this control, you can attach error messages that display next to the control when the data is invalid, as seen in the following image. A red circle with an exclamation point blinks, and when the user mouses over the icon, the error message is displayed as a tooltip.

How is meant by DLL?

A DLL (Dynamic Link Library) is a file that can be loaded and executed by programs dynamically. Basically it’s an external code repository for programs. Since usually several different programs reuse the same DLL instead of having that code in their own file, this dramatically reduces required storage space. A synonym for a DLL would be library.

Can anyone tell me about Secure Socket Layer? How to make use of the technology?

Secure Sockets Layer (SSL) and Transport Layer Security (TLS), its successor, are cryptographic protocols which provide secure communications on the Internet. There are slight differences between SSL 3.0 and TLS 1.0, but the protocol remains substantially the same. The term “SSL” as used here applies to both protocols unless clarified by context.