Pixel - In digital imaging, a pixel. Is a physical point in an image, or the smallest addressable element in a display device. So it is the smallest controllable element of a picture represented on the screen. LCD pixels are manufactured in a two-dimensional grid, and are often represented using dots or squares.
Each pixel is a sample of an original image; more samples typically provide more accurate representations of the original image. The intensity of each pixel is variable. In color image systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black
Resolution - Image resolution is the detail an image holds. The term applies to raster digital images, film images, and other types of images. Higher resolution means more image detail.
Image resolution can be measured in various ways. Basically, resolution quantifies how close lines can be to each other and still be visibly resolved. Resolution units can be tied to physical sizes (e.g. lines per mm, lines per inch), to the overall size of a picture (lines per picture height, also known simply as lines, TV lines, or TVL. A line is either a dark line or a light line. A resolution 10 lines per millimeter means 5 dark lines alternating with 5 light lines, or 5 line pairs per millimeter (5 LP/mm).
Screen Ratios - The display resolution of a digital television, computer monitor or display device is the number of distinct pixels in each dimension that can be displayed. Flat panel display which includes Liquid crystal displays, or projection displays using fixed picture-element (pixel) arrays.
It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels.
Frame Ratios - Frame ratio is also know as Aspect Ratio. The aspect ratio describes the relationship between the hight and width of a picture. When writing an aspect ratio, they are normally wrote with a collon. eg: 4:12. The width is always the first number and the second number is the hight.
Video Format - A video format is the way in which video is recorded and stored. DV and HDV videos can be transfered to a computer for editing via firewall.
Compression - Codec is short for coder-decoder and the method in which video data is encoded onto a file and decoded when the file is played back.
Sites where i got my information
http://en.wikipedia.org/wiki/Display_resolution
http://en.wikipedia.org/wiki/Image_resolution
http://en.wikipedia.org/wiki/Pixel
Moodle - http://haunit64mgcv.blogspot.co.uk/search/label/HA1%20Task%2001
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