pylkko wrote:Tablet's and other computers generally have some kind of backlighterd display. Perhaps and LCD or AMOLED, which means that there is a large lamp shining light, and on top of that is a layer of pixels that can change the light in different wys to form an image. E-book readers tend to have E-ink displays, which do not have a lamp, but the image is created by dark or coloured specks that can be turned on or of with electric current and which reflect light.[...]
The current Amazon kindles with E-ink also have back lighting, but it is not required to see the display like on a tablet. The back light allows you to read in the dark.
pylkko wrote:However, I believe that all commercial (not DIY) E-book readers -- or at least do not know of one that is not -- organized so that the content that you buy is "not yours". That is, there is a server somewhere, and when you pay for a book, you unlock access to it on that server for youtself. This means you cannot read your own made documents, pirated stuff, and need to have a mobile connection. You also cannot just give the book to a friend, for example. According to Wikipedia, Amazon Kindle has a service where you can email stuff to Amazon and they will put ot into your account (
https://en.wikipedia.org/wiki/Amazon_Kindle). [...]
Some clarification of the Amazon Kindle. The content bought from Amazon is essentially not yours. You can download it to a certain number of your devices for reading, but that is it. But, once it is on your Kindle, or cell phone, or computer, you don't need access to Amazon to read it. You only need access to Amazon to download it to another kindle, or computer, or cell phone.
You can copy any text file, or .mobi file to a kindle and read it without any problem. You can also do the same with .pdf files, but reading a .pdf on a Kindle is not the best, the format is fixed and the kindle screen is small. I've got more non-Amazon (my own, or free) content on my Kindle than books purchased from Amazon. If you want to add some of your own content to your kindle, just connect a USB cable (windows or Linux) and drag and drop. (You can also email personal content to a special Amazon address and download it to your Kindle by whisper net or wifi. But, a USB cable is much easier.) If you purchase a book from Amazon (and your kindle has whisper net, basically free cell phone access to Amazon) you can download a book from anywhere you have cell access. If your Kindle doesn't have "whisper net" you can use wifi. You can also download Amazon book content to your computer then transfer to your kindle by USB.
For reading .pdf files, a tablet works much better. Especially one with a 10" screen.
And, although I love high technology, there is nothing like the smell and feel of a high quality hard back book. Sometimes paper is the best format.