Digital Media Components & Products

• Nano Technology - Technology dealing with matter on a molecular size scale of nanometers (1 billionth of a meter)
• Notebook A laptop computer, or simply laptop (also notebook computer or notebook), is a small mobile computer, which usually weighs 2.2-18 pounds (1-6 kilograms), depending on size, materials, and other factors
• Network Two or more computers linked together physically or via telecommunications for the purpose of electronically sharing resources such as computer files, programs, peripheral devices, and either centralized or distributed services
• Network Security Administrator  The systems administrator is often in charge of network security since he has administrator privileges on the system. In fact, only the systems administrator and his assistants should have administrative access to the mainframe server and related computer terminals. This will help keep unauthorized people in the company from changing any data on the servers.A systems administrator will also build a secure firewall for the network, which may include an encryption layer and sentinel software that automatically repels an unauthorized program from gaining access. The administrator may also place restrictions on employees’ computers to prevent them from accessing websites that may have malicious coding or malware that will install itself on a user’s computer.
• Non-Graphical Display Browser A Browser that allows the viewer to read the page with out the use of graphics or images - usually used for vision impaired web users.
• Navigation The primary purpose of web navigation is to help people to move  from one page to another vis the use of web page hyperlinks
• Noise Randomly-spaced speckles (pixels) that can appear in digital images shot at high ISO numbers. Noise results in a reduction of photo detail and clarity.
• OSP (Online Service Provider) In its original more limited definition it referred only to a commercial computer communication service in which paid members could dial via a computer modem the service’s private computer network and access various services and information resources such a bulletin boards, downloadable files and programs, news articles, chat rooms, and electronic mail services.
• Open Source When the source code of a computer program is made available free of charge to the general public, it’s known as open source. The basis of open source software is to produce more useful and bug-free products for everyone to use
• Out of Gamut a colour that cannot be reproduced accurately by the device processing the image
• Opacity The degree to which an image is transparent, allowing images behind to visually show through
• Photoshop Adobe Photoshop is the industry standard image manipulation tool used for many tasks, from photo retouching to creating posters. One of the most versatile and powerful programs available to the designer it is essential for a professional finish
• PDA (Personal Digital Assistant) A term used by Apple to describe a new generation of handheld computer/organiser/communicator device which will be capable of interpreting hand
• Portal A Web site that is the first place people visit when using the Web. Typically, a portal site has a catalog of sites, a search engine or both. A portal site may also offer email and other services to entice people to use that site as the main point of entry or portal to the Web.
• Path (file/folder path) The location of the fileor folder as it is stored in a series of computer directories
• Plug In a software module that “plugs in” an application in order to give it a specific additional functionality
• Podcast (from “iPod” and “Broadcasting”) A method of publishing audio files to the Internet for playback on mobile devices and personal computers.
• Pixel (PICture ELement) The smallest element of a digitized image. One small dot of light among the many dots that make up an image on a computer screen.
• PNG file PNG (Portable Network Graphics) is a bitmapped image format that employs lossless data compression. PNG was created to improve and replace the GIF format, as an image-file format not requiring a patent license.
• Pixellated In computer graphics, pixelation is an effect caused by displaying a bitmap or a section of a bitmap at such a large size that individual pixels, small single-colored square display elements that comprise the bitmap, are visible to the eye.
• PDF File A computer file created using the Portable Document Format. These files may be viewed and printed using a software program called Adobe Acrobat Reader
• Proxy Server An application that breaks the connection between sender and receiver. All input is forwarded out on a different port, closing a straight path between two networks and preventing a cracker from obtaining internal addresses and details of a private network.
• Quicktime A video compression standard developed by Apple Computer, frequently used for video clips on the World Wide Web.
• Quick Mask Mode Quick mask mode is a powerful way of selection in Photoshop. It is a selection based on the masking of the desired portion of an image. It is used for minute and accurate selections.
• RGB Red, Green, Blue; the color language of computers. Computers´ monitors and digital cameras use these colors to create all the colors seen on the monitor and saved in files. Red, Green, Blue. The hues of the additive color system. When mixed together these colors create a white light. Computer monitors display color in RGB.
• Resolution The number of pixels that can fit into one inch determines the sharpness and quality of an image. Computer monitors are 72-96 DPI while most printed jobs are 300 DPI or above.
• Relative & Absolute URLS

This URL is known as a relative address. A Relative URL is one in which the link states only the file or image name. If the Web browser is given no other addressing information, it looks for this file or image in the folder that holds the current file or image. However, if someone wished to access this file from some other page or somewhere else on the Web, they would need to use the complete address or the Absolute URL as shown below.

• Raster Graphics graphic file made up of tiny dots called pixels. A larger number of pixels in an image yields a higher resolution. Tiff, jpeg and bmp images are raster graphics. Raster graphics, or bit-mapped graphics, are digital images stored as arrays of pixels for display and modification. In raster data there are no lines, circles, or polygons, only pixels that are grouped to give the appear­ance of these ele­ments.
• Rollover Button  refers to a button as created by a web developer or web designer, found within a web page, used to provide interactivity between the user and the page itself. The term rollover in this regard originates from the visual process of “rolling the mouse cursor over the button” causing the button to react (usually visually, by replacing the button’s source image with another image), and sometimes resulting in a change in the web page itself.
• RAM Random Access Memory, the volatile memory used to temporarily store information for processing. This is the fastest type of memory for the computer. Random Access Memory. Memory that allows any storage location to be accessed randomly, as opposed to tape drives, which are sequential access devices. Chips in the computer used for temporary storage of data.
• Root folder A folder name selector will display all folders beneath this folder
• Search Engine A software that searches for information and returns sites which provide that information. Examples of search engines are AltaVista, Google
• Scripting Languages There are many scripting languages in common use. On the Internet these tend to be divided between those that are used by servers to control the processing of information, and those that are used by clients. On servers a popular language is Perl (Practical Extraction and Report Language). This can be used in conjunction with a web server’s Common Gateway Interface (CGI) to transact information between the server and a client’s web browser. Perl/CGI can also be used in conjunction with other services to provide gateways between the web, email, and other information services. For client-side scripting, the popular option is JavaScript.
• Spam Unsolicited e-mail. There are two common usages: 1) mass e-mailings by commercial sites to recipients who have not requested any contact, and 2) e-mail sent to intentionally annoy or harass the recipient, including crashing his or her computer by overloading its e-mail capacity
• SSL (Secure Sockets Layer) is a commonly-used protocol for managing the security of a message transmission on the Internet. SSL uses a public-and-private key encryption system, which also includes the use of a digital certificate
• Streaming Media Non-text files, such as sounds, animation and video, that can be viewed or listened to shortly after the downloading process begins, because it is not necessary to download the entire file before viewing it or listening to it and Media files (sound or video) that play on the user’s system as they arrive. By streaming a media file to an end user, it alleviates the delay of waiting for the whole (often rather large) file to download before it can be played. top of page
• Scanner types a digitizing device using light sensitivity to translate a picture or typed text into a pattern of dots which can be understood and stored by a computer and Optical scanner. Also electric device used in making color separation.
• Stop Frame Animation Stop motion (or frame-by-frame) animation is a general term for an animation technique which makes a physically manipulated object appear to move on its own. The object is moved by extremely small amounts between individually photographed frames, creating the illusion of movement when the series of frames are played as a continuous sequence.
• Software Calibration is software that is used for calibrating gauges or instruments
• Scratch Disk Memory A hard disk used by a program such as Adobe Photoshop to store temporary (or “scratch”) files while the program is being used. Image editing programs are often used to edit very large graphics files–files much too big to fit in the computer’s memory. A scratch disk is used to store temporary copies of the image while it is being edited. Many programs require a great deal of free space on their scratch disks; image editing programs, for example, may want free space equal to five times the size of the file being worked on.
• Saturation In color theory, saturation or purity refers to the intensity of a specific hue. A highly saturated hue has a vivid, intense color, while a less saturated hue appears more muted and grey. With no saturation at all, the hue becomes a shade of grey
• SLR Camera

A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that uses an automatic mirror system and pentaprism or pentamirror to direct light from the lens through the viewfinder eyepiece.The basic operation of a DSLR is as follows: for viewing purposes, the mirror reflects the light coming through the attached lens upwards at an approximately 90 degree angle. It is then reflected by the pentaprism to the photographer’s eye. During exposure (when the photograph is taken), the mirror swings upward, and a shutter opens, allowing the lens to project light onto the image sensor.

• Scrolling Moving the text and cursor vertically or horizontally within the view. Scrolling up means the cursor and text move down the screen. Scrolling right means the cursor and text move leftwards.