Acrobat Reader: (formerly called Adobe Reader ) is free desktop and mobile application software that allows you to view, print, search and make simple annotations to PDF (Portable Document Format) files.
Adobe Digital Editions (ADE): a free ebook reader software, provided by Adobe, allowing users to view and manage EPUB and PDF ebook formats. It can be installed on both PC and Mac computers, and is supported by many portable ebook devices. ADE can be used to download and purchase digital content and transfer DRM (copy-protected) ebooks from your personal computer to other computers or devices.
Book Format: the version of an ebook text that you can read using a given eBook reader. Examples of ebook formats include EPUB and PDF.
Download: the process of copying or moving information into a computer's memory from the internet. The length of time needed to download a file depends on the size of the file and the speed of your computer.
DRM: Digital rights management (DRM) systems help protect the copyright of materials by defining how the content can be used. These rights are determined by the publishers.
Ebook: short for electronic book, it is a book in digital format that can be displayed and read on a computer screen or handheld device.
EPUB: an ebook file format. An EPUB file is essentially HTML, CSS, and images bundled together to follow the structure of a book, and allows a wide array of devices and software to read and display the ebook.
Ereader: a handheld device—or type of computer software—used to view ebooks (e.g, Nook, Kindle, iPad, Adobe Digital Editions). For most ebooks, an ereader gives the user the option to adjust various settings based on his or her needs. Formatting choices like font, text size, line and word spacing, and background color are left up to the reader.
PDF: Portable Document File) format provides an electronic image of text or text and graphics that looks like a printed document and can be viewed, printed, and electronically transmitted.
USB: (Universal Serial Bus) is the most common type of computer port. It can be used to connect keyboards, mice, game controllers, printers, scanners, digital cameras, and removable media drive.