wiktionary

Profile:     http://en.wiktionary.org/wiki/User:Stafford3

1. Class definition:

PNG (Portable Network Graphics)

:

A format for encoding a picture pixel by pixel, designed for transferring images on the Internet, not for professional-quality print graphics.

Updated definition:

PNG is a raster graphic file format. A raster graphic file format is a dot matrix data structure representing a generally rectangular grid of pixels, or points of color (bitmap) that supports lossless data compression (class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data) PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF) -- a bitmap image format that was introduced by CompuServe in 1987

2. Class definition:

Web Mashup : This is when websites are “opened up” to allow access the information in them. This then enables information from several different sites to be combined for creative effect. Updated definition: A mashup, in web development, is a web page, or web application, that uses and combines data, presentation or functionality from two or more sources to create new services. The term implies easy, fast integration, frequently using open application programming interfaces (API) and data sources to produce enriched results that were not necessarily the original reason for producing the raw source data. The main characteristics of a mashup are combination, visualization, and aggregation. It is important to make existing data more useful, for personal and professional use. To be able to permanently access the data of other services, mashups are generally client applications or hosted online. In the past years, more and more Web applications have published APIs that enable software developers to easily integrate data and functions instead of building them by themselves. Mashups can be considered to have an active role in the evolution of social software and Web 2.0. Mashup composition tools are usually simple enough to be used by end-users. They generally do not require programming skills and rather support visual wiring of GUI widgets, services and components together. Therefore, these tools contribute to a new vision of the Web, where users are able to contribute.

3. Class definition:

e-book : A book published in digital form.

Updated definition:



An electronic book (variously, e-book, ebook, digital book, or even e-edition) is a book-length publication in digital form, consisting of text, images, or both, and produced on, published through, and readable on computers or other electronic devices. The Oxford Dictionary of English defines the e-book as "an electronic version of a printed book, but e-books can and do exist without any printed equivalent. E-books are usually read on dedicated e-book readers or tablets using e-reader applications. Personal computers, many mobile phones, and nearly all smart phones can also be used to read e-books.