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 -The RGB color model is an additive color model in which red, green, and blue light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue.
Resolution - Image resolution describes the detail an image holds. The term applies to digital images, film images, and other types of images. Higher resolution means more image detail.
Raster Graphics - a raster graphics image or bitmap is a data structure representing a generally rectangular grid of pixels, or points of color, viewable via a monitor, paper, or other display medium. Raster images are stored in image files with varying formats (see Comparison of graphics file formats).
Rollover Button - refers to a button 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 (RAM) is a form of computer data storage. Today, it takes the form of integrated circuits that allow stored data to be accessed in any order with a worst case performance of constant time. Strictly speaking, modern types of DRAM are therefore not random access, as data is read in bursts, although the name DRAM / RAM has stuck.
Scripting Languages - In computing, a scripting language is a set of commands for controlling some specific piece of hardware, software, or operating system.
Spam - s the use of electronic messaging systems (including most broadcast media, digital delivery systems) to send unsolicited bulk messages indiscriminately.
Streaming Media -s multimedia that is constantly received by and presented to an end-user while being delivered by a streaming provider.[note 1] The name refers to the delivery method of the medium rather than to the medium itself.
Scanner Types -
Flatbed Scanners
The most common desktop scanners resemble copy machines, in that the item being scanned rests on a glass plate while the scanning head moves underneath it. These flatbed scanners are versatile because they can scan flat originals of various sizes, and they can even scan small three-dimensional objects.
Sheetfed Scanners
Over the last few years, personal sheetfed scanners have grown in popularity. These units are more like a fax machine than a copier, because they move the page being scanned past the scanning head, rather than the other way around.
Slide Scanners
Some items demand special handling during scanning. Slides, for instance, require a scanner that passes light through the image rather than reflecting off light off it. Because of their small size, slides also need to be scanned on a unit with very high resolution (in other words, a lot of eyes on the scanning head).
Drum Scanners
Before the advent of desktop scanning, most images were loaded into computers through drum scanners. Expensive and difficult to operate, these units were found primarily in color prepress companies. Technicians there would carefully mount originals on a glass cylinder, which would then be rotated at high speeds around a sensor located in the center.
Stop Frame Animation - Stop motion (also known as stop action) is an animation technique to make a physically manipulated object appear to move on its own. The object is moved in small increments between individually photographed frames, creating the illusion of movement when the series of frames is played as a continuous sequence. Clay figures are often used in stop motion for their ease of repositioning. Motion animation using clay is called clay animation or clay-mation.
http://www.youtube.com/watch?v=mk6zbY8i4_8
Saturation - refers to the perceived intensity of a specific color. Saturation is the colorfulness of a color relative to its own brightness.
Original image:
Saturated image:
SLR Camera -is a camera that typically uses a semi-automatic moving mirror system that permits the photographer to see exactly what will be captured by the film or digital imaging system (after a very small delay), as opposed to pre-SLR cameras where the view through the viewfinder could be significantly different from what was captured on film.
Scrolling - In computer graphics, movies, television, and other kinetic displays, scrolling is sliding text, images or video across a monitor or display. "Scrolling", as such, does not change the layout of the text or pictures, or but incrementally moves (pans or tilts) the user's view across what is apparently a larger image that is not wholly seen.
Thumbail - are reduced-size versions of pictures, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words.
Tiff file - (originally standing for Tagged Image File Format) is a file format for storing images, popular among graphic artists, the publishing industry,[1] and both amateur and professional photographers in general.
Tone -Tone mapping is a technique used in image processing and computer graphics to map one set of colors to another, often to approximate the appearance of high dynamic range images in a medium that has a more limited dynamic range. Print-outs, CRT or LCD monitors, and projectors all have a limited dynamic range that is inadequate to reproduce the full range of light intensities present in natural scenes. Essentially, tone mapping addresses the problem of strong contrast reduction from the scene values (radiance) to the displayable range while preserving the image details and color appearance important to appreciate the original scene content.
The following link is a guide to adjusting image tone in photoshop:
http://www.photoshopessentials.com/photo-editing/levels/
Typography -
1. The art or process of setting and arranging types and printing from them.
2. The style and appearance of printed matter. 
URL - In computing, a Uniform Resource Locator (URL) is a Uniform Resource Identifier (URI) that specifies where a known resource is available and the mechanism for retrieving it.
A URI is a string of characters used to identify a name or a resource on the Internet
Upload - uploading refers to the process of sending a file, image etc to a web page.
Vodcast - Video podcast (sometimes shortened to vodcast) is a term used for the online delivery of video on demand video clip content via Atom or RSS enclosures. The term is used to distinguish between podcasts which most commonly contain audio files and those referring to the distribution of video where the RSS feed is used as a non-linear TV channel to which consumers can subscribe using a PC, TV, set-top box, media center or mobile multimedia device. Web television series are often distributed as video podcasts.
Vector graphics - is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical equations, to represent images in computer graphics.
Virtual memory - In computing, virtual memory is a memory management technique developed for multitasking kernels. This technique virtualizes a computer architecture's various hardware memory devices (such as RAM modules and disk storage drives), allowing a program to be designed as though:
there is only one hardware memory device and this "virtual" device acts like a RAM module.
the program has, by default, sole access to this virtual RAM module as the basis for a contiguous working memory (an address space).
