In recent years more and more so-called reading devices for reading electronic books gained popularity among people. Not a long time ago they have not been heard , and now , especially after the release of Apple iPad was released on April 3, 2010 ( one of the key features that - just reading a book ) , the popularity of readers has grown to an unprecedented scale that was not before . People read , read , and will read books. Life goes on. Books have also undergone through the modifications : first, they were on the bark and papyrus , then - on the leather , and paper, but now we are holding the e-books.
Firstly, there are three types of digital books:
1. Budget E-reader with a color TFT-screen . The benefit of it- is the price , the disadvantage - high power consumption and the dubious safety of the eyes. From a long read with a bright TFT- screen may be very tired for eyes if periodically a reader will not take breaks . The thing is flickering illumination , which is a fundamental part of the technology of TFT. To distinguish the TFT screen you need to look at a certain angle, which has a viewing angle of 90 degrees . This creates some discomforts , especially in bright sunlight.
2 . Readers based on electronic ink (technology E-Ink). It is considered safe to view, consumes a little power due to the technology used. Perform the same function as the first category , but have a monochrome image . E-books with E-Ink- display allow you to read as much as you want , because if you read them in the light there won’t be any irritation to the eyes. It can be concluded that the E-Ink screen is safer for the eyes. Angle of viewing any E-Ink screen is 180 degrees, which allows easily read text at any angle , even in bright sunlight. However, in the electronic ink books there are problems with updating the image - this is especially noticeable during extended use of the E-Ink books. A just watched page can leave streaks , preventing the display of the new picture . The reason is the high inertia of electronic paper .Therefore, you should pay attention to the new generation of e-paper E-Ink Pearl, which is even better displays text and illustrations. This text looks like on plain white paper, and to updating the page requires less than 1 second .
3 . And finally , the third category - this is probably the tablet with Bluetooth and WiFi- adapter inside, touch screen and on the basis of an advanced operating system with a huge number of applications. These devices are the most expensive, for example Ipad Air 32Gb costs $599 , but harm the safety of the eye. Those tablets ‘eat’ the battery even quicker than those two categories because these tablets have many applications in it.
The general advantages of any digital books are:
• They are light and you can easily have the whole library just in one digital book! For example 7″ Touch Screen 4 GB E-Book Reader Media Player PDF Reader has a weight of 286g
• They are comfortable to read - you can change the...