![]() ![]() HistoryĪn idea similar to that of an e-reader is described in a 1930 manifesto written by Bob Brown titled The Readies, which describes "a simple reading machine which I can carry or move around, attach to any old electric light plug and read hundred-thousand-word novels in 10 minutes". However, the use of memory cards is decreasing as most of the 2010s era e-readers lack a card slot. An e-reader may also download e-books from a computer or read them from a memory card. Many e-readers can use the internet through Wi-Fi and the built-in software can provide a link to a digital Open Publication Distribution System (OPDS) library or an e-book retailer, allowing the user to buy, borrow, and receive digital e-books. The Sony Librie, released in 2004 and the precursor to the Sony Reader, was the first e-reader to use electronic paper. The absence of such apps may be perceived as an advantage, as the user may more easily focus on reading. Drawbacks of this kind of display include a slow refresh rate and (usually) a grayscale-only display, which makes it unsuitable for sophisticated interactive applications as those found on tablets. This yields much longer battery life - the battery can last for several weeks - and better readability, similar to that of paper even in sunlight. It is similar in form factor to a tablet computer, but often features electronic paper rather than an LCD screen. An e-reader is a device designed as a convenient way to read e-books.
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