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Screencast
A screencast is a digital recording of computer screen output, also known as a video screen capture or a screen recording, often containing audio narration. The term ''screencast'' compares with the related term ''screenshot''; whereas screenshot generates a single picture of a computer screen, a screencast is essentially a movie of the changes over time that a user sees on a computer screen, that can be enhanced with audio narration and captions. Etymology In 2004, columnist Jon Udell invited readers of his blog to propose names for the emerging genre. Udell selected the term "screencast", which was proposed by both Joseph McDonald and Deeje Cooley. The terms "screencast," " screencam" and "screen recording" are often used interchangeably, due to the market influence of ScreenCam as a screencasting product of the early 1990s. ScreenCam, however, is a federal trademark in the United States, whereas screencast is not trademarked and has established use in publications as part of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screencam
ScreenCam (formerly ''Lotus/IBM ScreenCam'') is a screencast tool for Microsoft Windows that is used to author software demonstrations, software simulations, branched scenarios, and tutorials in .swf (also known as Adobe Flash) format. ScreenCam was primarily targeted at users who need to create video-oriented instructional materials who were not multimedia authors or video capture technicians. It was very easy to use, having a ' VCR-like' interface and requiring no knowledge of digital video editing, or the concept of ' frames' of a movie, because it used a different paradigm for creating the screen movies. It can also be used for creation of screencasts and conversion of Microsoft PowerPoint presentations to the Adobe Flash format. History ScreenCam was originally produced in the early 90s and received good reviews compared to other technologies of the time. It was considered one of the earliest screencasting products commercially available in the 1990s, and was popular for st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screenshot
A screenshot (also known as screen capture or screen grab) is an analog or digital image that shows the contents of a computer display. A screenshot is created by a (film) camera shooting the screen or the operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ... or software running on the device powering the display. Screenshot techniques Digital techniques The first screenshots were created with the first interactive computers around 1960. Through the 1980s, computer operating systems did not universally have built-in functionality for capturing screenshots. Sometimes text-only screens could be dumped to a text file, but the result would only capture the content of the screen, not the appearance, nor were graphics screens preservable this way. Some systems had a BS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of Screencasting Software
This page provides a comparison of notable screencasting software, used to record activities on the computer screen. This software is commonly used for desktop recording, gameplay recording and video editing. Screencasting software is typically limited to streaming and recording desktop activity alone, in contrast with a software vision mixer, which has the capacity to mix and switch the output between various input streams. Comparison by specification Comparison by features The following table compares features of screencasting software. The table has seven fields, as follows: # Product name: Product's name; sometime includes edition if a certain edition is targeted # Audio: Specifies whether the product supports recording audio commentary on the video # Entire desktop: Specifies whether product supports recording the entire desktop # OpenGL: Specifies whether the product supports recording from video games and software that employ OpenGL to render digital image # Direct3D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Watermarking
A digital watermark is a kind of marker covertly embedded in a noise-tolerant signal such as audio, video or image data.H.T. Sencar, M. Ramkumar and A.N. Akansu: ''Data Hiding Fundamentals and Applications: Content Security in Digital Multimedia''. Academic Press, San Diego, CA, USA, 2004. It is typically used to identify ownership of the copyright of such a signal. Digital watermarking is the process of hiding digital information in a carrier signal; the hidden information should,Ingemar J. Cox: ''Digital watermarking and steganography''. Morgan Kaufmann, Burlington, MA, USA, 2008 but does not need to, contain a relation to the carrier signal. Digital watermarks may be used to verify the authenticity or integrity of the carrier signal or to show the identity of its owners. It is prominently used for tracing copyright infringements and for banknote authentication. Like traditional physical watermarks, digital watermarks are often only perceptible under certain conditions, e.g. af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crippleware
Crippleware is computer software or hardware that has been intentionally designed to have some of its features disabled or not working to its full capability until payment of some kind is rendered. In software, crippleware means that "vital features of the program such as printing or the ability to save files are disabled until the user purchases a registration key". While crippleware allows consumers to see the software before they buy, they are unable to test its complete functionality because of the disabled functions. Hardware crippleware is "a hardware device that has not been designed to its full capability". The functionality of the hardware device is limited to encourage consumers to pay for a more expensive upgraded version. Usually the hardware device considered to be crippleware can be upgraded to better or its full potential by way of a trivial change, such as removing a jumper wire. The manufacturer would most likely release the crippleware as a low-end or economy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unfriended
''Unfriended'' (originally titled ''Cybernatural'') is a 2014 American screenlife supernatural horror film directed by Levan Gabriadze and produced by Timur Bekmambetov. Set on a computer screen, the film stars Shelley Hennig, Moses Storm, Renee Olstead, Will Peltz, Jacob Wysocki, and Courtney Halverson as six high school students in a Skype conversation which is haunted by a student, played by Heather Sossaman, who was bullied by them and committed suicide. The film is told almost entirely through a screencast of a MacBook. The film premiered at the Fantasia International Film Festival on July 20, 2014, and was theatrically released by Universal Pictures in the United States on April 17, 2015. The film received mixed-to-positive reviews from critics and was a massive box-office success, grossing $62.9million against a $1million budget. A stand-alone sequel, '' Unfriended: Dark Web'', was released in 2018. Plot In Fresno, California, high school student Laura Barns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Searching (film)
''Searching'' is a 2018 American screenlife mystery thriller film directed by Aneesh Chaganty in his feature debut, written by Chaganty and Sev Ohanian and produced by Timur Bekmambetov. Set almost entirely on computer screens and smartphones, the film follows a father ( John Cho) trying to find his missing 16-year-old daughter (Michelle La) with the help of a police detective ( Debra Messing). This was the first mainstream Hollywood thriller headlined by an Asian-American actor. A co-production between the United States and Russia, the film premiered at the Sundance Film Festival on January 21, 2018. It was released in a limited release on August 24, 2018, before opening wide on August 31, 2018 by Sony Pictures Releasing. The film was a financial and critical success, grossing over $75 million worldwide against a $880,000 budget and receiving praise for its direction, acting, unique visual presentation, and unpredictable storyline. At the Independent Spirit Awards, Cho was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphical User Interfaces
A graphical user interface, or GUI, is a form of user interface that allows user (computing), users to human–computer interaction, interact with electronic devices through Graphics, graphical icon (computing), icons and visual indicators such as secondary notation. In many applications, GUIs are used instead of text-based user interface, text-based UIs, which are based on typed command labels or text navigation. GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces (CLIs), which require commands to be typed on a computer keyboard. The actions in a GUI are usually performed through direct manipulation interface, direct manipulation of the graphical elements. Beyond computers, GUIs are used in many handheld mobile devices such as MP3 players, portable media players, gaming devices, smartphones and smaller household, office and Distributed control system, industrial controls. The term ''GUI'' tends not to be applied to other lower-displa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Film And Video Technology
A film, also known as a movie or motion picture, is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, emotions, or atmosphere through the use of moving images that are generally, since the 1930s, synchronized with sound and (less commonly) other sensory stimulations. Etymology and alternative terms The name "film" originally referred to the thin layer of photochemical emulsion on the celluloid strip that used to be the actual medium for recording and displaying motion pictures. Many other terms exist for an individual motion-picture, including "picture", "picture show", "moving picture", "photoplay", and "flick". The most common term in the United States is "movie", while in Europe, "film" is preferred. Archaic terms include "animated pictures" and "animated photography". "Flick" is, in general a slang term, first recorded in 1926. It originates in the verb flicker, owing to the flickering appearance of early films. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Container Formats
Digital usually refers to something using discrete digits, often binary digits. Businesses *Digital bank, a form of financial institution *Digital Equipment Corporation (DEC) or Digital, a computer company *Digital Research (DR or DRI), a software company Computing and technology Hardware *Digital electronics, electronic circuits which operate using digital signals **Digital camera, which captures and stores digital images *** Digital versus film photography **Digital computer, a computer that handles information represented by discrete values **Digital recording, information recorded using a digital signal Socioeconomic phenomena * Digital culture, the anthropological dimension of the digital social changes *Digital divide, a form of economic and social inequality in access to or use of information and communication technologies * Digital economy, an economy based on computing and telecommunications resources *Digital rights, legal rights of access to computers or the Internet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
