E-books: forms, functions, how to use

E-books - a specialized device designed for the reproduction of the information of a digital format - text files. read the files downloaded from the websites of manufacturers, or from your own computer through the USB-cable.

Types of e-books

Displays e-books are made of Technology E-Ink, TFT and IPS.

E-Ink - otherwise known as electronic ink or "paper". The screen of this gadget seems a paper, as It simulates the standard recording sheet.

This embodiment is based on the use of special capsules microsizes which granules filled with electrically charged white and black colors. When the electric field passes through the capsules on the surface appear black and white granules depending on the voltage.

Benefits:

• glow and flickering within the display offline.
• the image appears on the screen when exposed to electricity, but then the field is removed, and the capsules themselves are painted in the color selected. In other words, the energy consumption figures are low, since it is only required when the image changes on the display.
• reader with a monitor on the E-Ink technology works without recharging week. The number of pages written instructions in the column work period (5-30 thousand. sheets) instead of hours.
• Battery gadget is not heavy, unlike the models that operate on the TFT technology.

E-Ink and has disadvantages:

• image contrast lower than the TFT. White color is grayish and black - not saturated.
• this technology monitor shows only two colors - black and white.
• the display is updated for longer than TFT technology. It used gadget for reading only - see the movie will not work.

By the way is easy to find with a touchscreen option. In this arrangement, in addition to the "Menu" button on the monitor there are links. But due to the sensor layer the contrast decreases.

Modifications E-Ink

Such modifications are designed E-Ink:

1. E-Ink SiPix - contrast proportions 6: 1. White color is greyish, but more saturated black than the VizPlex species. On the monitor grid microcapsules is clearly visible. These monitors will not find.
2. E-Ink VizPlex - contrast ratio of 7: 1. The most common variant.
3. E-Ink Pearl - contrast proportions are 10: 1. This option is expensive matrix.
4. E-ink Pearl HD - contrast ratio is 12: 1. This technology is new and is already being used in the reader.
5. E-ink Flex - contrast ratio is 10: 1. Too new technology, which adopted the first from LG. Instead of the glass plate substrate made of plastic is used. The display of such material is durable, it is resistant to deformation and impact.

How to choose an e-book

The criteria on which you should pay attention when choosing a reader.

Control

The most simple control system - using only one main button. It performs several functions. All work can be done 1 finger.

When the text format file is opened, the gadget will automatically go into read-only mode. Then all the extra panels disappear. In this mode, you can move to other pages to squander them, take notes and bookmarks, search, zoom.

Gadget is divided into mechanical and sensory. The latter option is considered to be ergonomic, because buttons set at a minimum. Make notes while reading convenient, because Information stands directly on the monitor. Choose a reader with a touch screen is better for those who read the educational and professional literature.

For other readers, and fit the device mechanically controlled, which sets out the buttons, keys, a joystick - it is considered more reliable than touch.

How big screens in electronic books

If you plan to carry a gadget and use it only for reading the conventional art literature, it is recommended reader with a display size of 6 inches - the size is considered a standard for readers.
Chitalki designed with a display size of less than 5 inches. These models are considered ultra-compact. They are suitable for those seeking the most minimal size.

9.7 inches - gadget with dimensions chosen by people who read the specialized literature: books, books with illustrations, instructions, newspapers, magazines. However, 9-inch reader is inconvenient to carry around because of its large size.

Conversion, the acceptable formats and Russification

For the user, much better if the device opens the files with different formats. It is mandatory to have supported formats fb2, djvu, txt, rtf, html. Typically, e-books have a limited number of formats, with both text and graphics.

Recent developed models support html and txt. But they are uncomfortable to read because of the fact that there is no text formatting.

As for the graphics resolution types, the e-books they are different from the computer, but the jpeg opens almost all models. There are e-books that open the zip archives. For people who prefer audio books or learning English and other languages, are designed book-reader that supports several audio formats.

Files permission pdf - not all e-books they read. This is not because the product is not finalized. In fact, the format is not meant to be read.

Another important parameter - the crack. This feature allows you to work with Russian menu, as well as gadget understands Cyrillic text.

functions

There is a theory that the extra features in the software e-book only increase the price of goods. In addition, already proven in practice that the more inclusive supplements that do not need the user, the smaller the rate of productivity in the gadget.

Despite this, it is recommended to know about them - some really useful.

• Some e-books "are able to" turn the text, when the screen is rotated.
• Models include additional dictionaries.
• Often include a function to connect WIFI, data transfer from the computer.
• Sometimes include additional voice recorder and radio.
• Function to create bookmarks in the text, rename files, search.

Sometimes these functions are useful, but often without them, you can easily do.

Accessories and aids. This includes cable for connecting to a computer, charger. In addition, a memory card, stylus for touch screen models, carrying case, headphones.

The duration of the work and memory in electronic books

The book-reader integrated memory, which can easily accommodate the average size of the library. Even if the book page 1000 weighs 1- 5 MB, the size of a memory device 512 MB easily accommodates 100-500 copies. In addition, it is possible to expand the memory due to the built-in maps.

Be sure when choosing a book-reader should pay attention to the duration of the gadget work without recharging the battery. In this case is this calculated number of pages in the book, instead of hours. But for screens with LCD display indicates precisely the number of hours.

Appearance

If you use the gadget is planned only in the home environment, the size and weight do not matter. The main thing - to pay attention to the screen. For lovers of reading in the road designed light and subtle variations, which are stored in a pocket or bag, and can easily fit in your hand.

Concerning the design, then for buyers developed business models black shades, extravagant and colorful elements and elegant gadgets in bright colors.

How to use

E-book is distinguished by its fragility, whatever layers and deposition have not been used to cover the screen. Most of the displays are made from glass. Moreover, not only used a glass substrate, but also a special protective layer. However, each thickness is not more than 0.2 mm, so that the screen is fragile.

Pressing and blows hurt it - is causing streaks. To prevent this, we recommend using a carrying case or cover. They must be strong and rigid.

The screen must always be clean, especially if it has integrated sensors. Any stains and plaque will cause the sensor to them spontaneously begins to operate. Subsequently, the screen will no longer respond to the touch, the power consumption increases. Because of this, the battery does not work for more than 3 days. For cleaning use a dry microfibre cloth.

As for the battery, it is not recommended for high temperature fluctuations. Many models have a non-removable battery type, so replace them in case of breakage will not work. Generally, the instructions indicate allowable temperature in the range of 5-35 degrees.
If the device will continuously reboot, it is recommended to temporarily turn it off and wait a few minutes before restarting.