1. E Books
Dr. S. Prakash
Principal
Thiagarajar College of Preceptors
Madurai
2. e-book
An e-Book (short
form of electronic
book) is an e-text
that forms the
digital media
equivalent of a
conventional
printed book.
3. • An electronic book (variously: e-book, eBook, e-
Book, ebook, digital book, or even e-edition) is a
book-length publication in digital form,
consisting of text, images, or both, readable on
computers or other electronic devices. Although
sometimes defined as "an electronic version of a
printed book",many e-books exist without any
printed equivalent.
4. • Commercially produced and sold e-books are
usually intended to be read on dedicated e-book
readers, however, almost any sophisticated
electronic device that features a controllable
viewing screen, including computers, tablet
computers, and smartphones can also be used to
read e-books.
5. E-book reading is increasing in the US,
since by 2014 28% of adults had read an e-
book, compared to 23% in 2013. This is
increasing because 50% of Americans by 2014
had a dedicated device, either an e-reader or a
tablet, compared to 30% owning a device at the
end of 2013.
6. Michael S. Hart (1971)
Despite the extensive earlier history, several
publications report Michael S. Hart as the
inventor of the e-book. In 1971, the operators
of the Xerox Sigma V mainframe at the
University of Illinois gave Hart extensive
computer-time. Seeking a worthy use of this
resource, he created his first electronic document
by typing the United States Declaration of
Independence into a computer.
7. e-reader :
An e-reader, also called an e-book reader or e-book
device, is a mobile electronic device that is designed
primarily for the purpose of reading e-books and
digital periodicals. An e-book reader is similar in
form, but oftentimes more limited in purpose than, a
tablet. In comparison to tablets, many E-readers are
better than tablets for reading because e-readers are
more portable, have better readability in sunlight (if
they are e-ink readers), and may have longer battery
life.
8. E-reader applications:
Additionally, some of the major book retailers and
multiple third-party developers offer free (and in some
third-party cases, premium paid) e-reader applications
for the Mac and PC computers as well as for
Android, Blackberry, iPad, iPhone, Windows Phone
and Palm OS devices to allow the reading of e-books
and other documents independently of dedicated e-
book devices. Examples are apps for the Amazon
Kindle, Barnes & Noble Nook, Kobo eReader, and
Sony Reader.
9.
10. e-Books are usually read on
personal computers or smart phones or
dedicated hardware devices known as
e-Book readers or e-Book devices.
Many mobile phones can also used to
read e-Books.
11. Comparison of e-Book with Printed Books
E-book readers are more fragile than paper
books and more susceptible to physical
damage.
E-book readers can malfunction and e-
books can be damaged due to faults in
hardware or software.
E-book readers are more likely to be stolen
than paper books.
12. Depending on the device, an e-book
may be difficult to read in bright
sunlight.
Most publishers don’t produce the e-
book equivalent of their printed books.
In other cases the product quality is
lower or it is released later.
13. e-books can be easily hacked through the
use of hardware or software modifications
and widely disseminated on the Internet
and/ or other e-book readers, without
approval from the author or publisher. This
ease of privacy is a significant drawback
for publishers.
14. If an e-book device is stolen, lost, or
broken beyond repair, all e-books
stored on the device may be lost. This
can be avoided by backup either on
another device or by the e-book
provider.
15. There is a loss of tactility and
aesthetics of book-bindings. Also lost
is the ability to very quickly riffle
through the pages to search for a
particular section or to get sense of the
book merely by sight.
16. Screen resolution of reading devices may be
lower than actual paper.
Due to the Digital rights management
reselling or lending out an e-book may have
complications.
Some books available as e-book cannot be read
on some e-book readers because they are not
supplied in a format those readers allow.
17. While printed books remain readable for
ages, changing technologies and less
durable electronic storage media require e-
books to be copied to a new carrier after
some years.
e-book readers require various substances
to produce, and are an environmental
hazards as they are non-biodegradable.
18. • Physical discomfort for some users, including
eye strain.
• More expensive, whereas used books are cheaper
and most often only a few hundred rupees can
be lost or stolen at one time.
• A book will never break, but an e-book device
can break, and a lot of money can be lost at one
time.
19. • One will never read thousands of books really
well or over a short period of time, so the high
amount held on an e-book reader becomes
irrelevant.
• A book is safe from electromagnetic pulses and
overloads.
• A whole paper book is never broken beyond
repair, unless entirely burnt or decayed.
20. • One will never read thousands of books
really well or over a short period of time, so
the high amount held on an e-book reader
becomes irrelevant.
• A book is safe from electromagnetic pulses
and overloads.
• A whole paper book is never broken beyond
repair, unless entirely burnt or decayed
21. PRODUCTION OF E-BOOKS
Some e-books are produced simultaneously with
the production of a printed format, as described in
electronic publishing, though in many instances they
many instances they may not be put on sale until
later. Often, e-books are produced from pre-existing
hard-copy books, generally by document scanning,
sometimes with the use of robotic book scanners,
having the technology to quickly scan books without
damaging the original print edition.
22. Scanning a book produces a set
of image files, which may be
additionally be converted into text
format by an OCR programme.
Occasionally, as in some e-text
projects, a book may be produced by re-
entering the text from a keyboard.