Thursday, April 11, 2019
Ict Unit 30 Essay Example for Free
Ict Unit 30 EssaySection BHardw argongraphics Card Graphics beaks processes all your graphics in your figurer. All Graphics Cards confine memory, these come in 128MB, 256MB and 512MB. The to a greater extent memory your computer has, the faster it will running play and combine it with a good mainframe. Internal Memory Cache memory is a added memory frame that temporarily retentivenesss frequently apply instructions and data for quicker processing by the central processor of a computer. RAM Random Access Memory is the working memory in a computer. mainframe computer The chip inside the computer that per rows all of the calculations and operations necessary to make your computer run. Softw ar sender based CorelDraw is a sender graphic design computer softw be package. Other examples include Adobe Illustrator, computing device Graphics Metafile and Shockwave Flash. Raster based Photo Raster is an advanced online photo editor softw are. Bitmap based Paintshop Pro is an jut out manipulation software, it allows you to work with Vectors and Rasters. Photo Manipulation Adobe Photoshop is a graphics editing course. Other software run across viewers and photo galleries.File formatsTIFF file A TIFF file stands for labelled Image File Format. TIFF files are a common format for physical bodys, especially those utilise on graphic design. GIF file GIF files are a format commonly utilise for graphics presented on websites. GIFs roll in the hay contain a maximum of 256 colours, and are thitherfore best for motion pictures that contain simple shapes. JPG file JPG files, besides known as JPEG files, are a common file format for digital photos and some other digital graphics. When JPG files are saved, they use lossy compression, meaning image quality is lost as file sizing decreases. M1A raster graphic or image is made up of pixels. Pixels are midget squares of selective information. Raster graphics are wonderful for rich, full-colour imag es such as photographs. Raster graphics are rendered images on a pixel-by-pixel basis and they are uncivilized when handling shading and gradients. Raster graphics are great when creating rich and detailed images. Every pixel in araster image derriere be a different colour therefore you can constitute a complex image with all kind of colour changes and variations. Also almost any program can work with a simple raster file. The most recognized application that handles raster graphics is Adobe Photoshop save there are also several other image editing software options out there for you to choose from.However raster images can non be scaled up in sizing very well. If you do pronounce to enlarge a raster image, it will consider grainy and distorted. This is because raster images are created with a finite number of pixels. When you improver the size of a raster image, the image increases in size all the same, because there are no longer teeming pixels to fill in this larger spac e, gaps are created between the pixels in the image. The photo editing software that you are using will try to fill these gaps the best they can however, the resulting image is often blurry. Another impairment is raster graphics are not great for embroidery. Because raster images are based on square pixels, your embroidery may look like it has jagged edges. If you want to embroider an image with smoother edges, it is best to use transmitter graphics instead of raster graphics. A vector graphic is made up of a series of small points that combine together to make lines and images.The most recognized applications which handle vector based graphics are Adobe illustrator, Macromedia freehand and Corel draw. Vector graphics are generally used for line art, illustrations and embroidery. Vector files are small because they contain a lot less data than raster files. Also vector graphics are more flexible than raster graphics because they can be advantageously scaled up and down without a ny loss to the quality of the image. As well as vector graphics having smoother lines when compared to square, pixel-based raster graphics therefore, they are better with straight lines and sweeping curves than raster graphics. However Vector graphics are generally filled with a solid colour or a gradient. They cant display the lush colour attainment of a raster graphic. ComparisonsA CD-ROM is a CD that can be read by a computer with an optical drive. The ROM part of the term means the data on the disc is read-only, or cannot be altered or erased they can hold up to 700 MB. A hard drive however is the computers main storage media device that permanently stores all data on the computer. A flash card is a small data storage device that uses a flashmemory chip to store data. Flash cards can be quite small in size, with a capacity of many an(prenominal) gigabytes of storage. And a USB storage device is a port up to(p) device that holds users data and files.USB storage devices include out-of-door hard drives and flash drives. A graphics t competentt is an input device which allows you to draw a telecasting onto a computer screen without having to use a mouse or keyboard. It consists of a flat, touch-sensitive pad and few sort of drawing device, usually either a pen or stylus. However a computer mouse is an input device that is most often used with a individualal computer. Moving a mouse along a flat surface can move the on-screen cursor to different items on the screen. A digital camera on the other hand is a camera that stores images digitally sort of than recording them on film. Once a picture has been taken, it can be downloaded to a computer system, and thuslyce manipulated with a graphics program and accordingly printed. Finally a computer scanner is used to qualify a hard likeness, that is a document you can hold in your hand, into data that your computer can read. Output mediaThe output medium involves a printer, monitor, mobile phone, PDA and a p lotter. The way in which the growing of output medium has had an impact on the design and the creation of the graphic images is by having vector images that look real life so it is clearer and appealing for large number to look at. The reason for this is that before there used to be older monitor cases that were not as thin, because it is around 30cm deep and are Cathode Ray thermionic vacuum tube (CRT) monitors. Whereas now there are modern monitors that are thinner which means that the case isnt more than a few cenmagazinetres deep and are generally LCD which is also known as the molten Crystal Display or thin Film Transistors (TST).The way in which the schooling of printers has had an impact on the design and the creation of the graphics is, because if people wanted to receive good quality printing then they would bring in to buy a printer that is more expensive. Whereas now people dont have to buy an expensive printer to receive good quality graphics. Another way in which the development of the printers has had an impact on the design and the creation of the graphics is, because there are new features available on one machine so the specific inescapably of the customers are being met as they are able to do everything themselves. Mobile phones have also had an impact on the design and the creation of graphics is, because people are able to take a picturefrom their phones and edit it onto the computer. Whereas now people are able to edit it on their phones and Bluetooth it to the computer or printer which is not time-con centerfielding and more efficient.Section CD2The file format is basically the way in which the layout of the image is known as, in order for it to be stored on the computer. Therefore this shows us that due to there being different types of file formats they can be reduced, so that they are easily recognised and accessed by the file. JPEG/ JPG also known as the Joint photographic Experts Group and it is used for photos and the continu ous tone images. This specific format is mainly for the web applications and it is quite equal to the GIF file, however the only difference is that the JPEG files store all of its colour data and doesnt postulate enhancer whereas the GIF files dont store the colour information. In addition the reason as to why I would not use this file format for my images that I have got from Google is, because when I try to print the image or change its size for example increase it e.g. stretch it, then the image can nonplus degraded or pixelated. This means that the image quality is lost, does not look as efficient and it is not clear to see. There are two different types of compression techniques and these are Lossless compression and lossy compression. Therefore the compression techniques are used to reduce the disk size of the file. So if the file size is reduced then there is more storage space.However it could also be that the file needs to be moved to a different location. For example a small file size arrives more quickly that a file with more capacity and information. Lossless compression is when the images can be rebuilt from the smashed image. Whereas lossy compression is the opposite so this means that the original image cannot be rebuilt from the compressed image. Image resolution is when the amount of detail the image includes. Therefore it could be for digital images, such as vector or bitmap images, film images and other types of images etc. However if an image has a higher resolution then there is more detail within it and it can be measured in many different ways. This means that the resolution of images just shows how close the lines are to all(prenominal) other and be visibly resolved. In addition the resolution units can beviewed as the physical sizes, such as the lines per image the inch or to the overall size of a picture for example lines per picture height. The reason why colour depth is important is, because it controls the file size and the overall quality of the image. To conclude looking at the different factors of the images, such as file formats, compression techniques, image resolution and colour depth they each have their own role in maintaining a good quality image and different methods to do so.Section CP6Copyright is when people create the different types of media which is in a form of information for example images, software and books. Therefore the owners have the right on how they would like the work to be used or copied. However when people want to reuse the image they need to get permission first, because the images could have copyright. This stops mostone from copying an idea therefore the business will have enough time to develop and manufacture the idea. This can then be sold at a high footing to begin, in order to recover some of the development costs. Copyright free is when the images can be used by anyone so these images can be found on web pages for example Google. This is because they are easily recognised as copyright free which could be included from the graphics software. Whereas there are some images that are not easily identified as copyright free so this means that the person needs to gain permission from the owner in order for it to be used, as it could result in the image having copyright.Generally when someone asks permission from the owner it could result in paying a sum of money for the image to be reused. As well as when someone takes photos of other people then he or she will need to ask them to sign a model release form which gives the photographer permission to use the image. This is because there are some people who dont drive using someones photos appropriate without their permission. Whereas for non-commercial use for example education schools then it is suitable for them to copy the image and use it for their education as they might need it for their project and there is no other purpose for using the information. However if the students require a lot o f information then they might need to get permission for using the information and stating the name of the copyright image and theowner of the piece of information.