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Btec Level 3 Unit 7 P1

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Hardware:
CPU- The processor allows programs on the computer to run, every programs has a set of instructions that the processor decodes to make them work. The quicker the processor runs the instructions, the quicker the program responds to the user. The power of the CPU is dependent on how fast the circuits are driven. Many graphics work require a lot of processing, for example rescaling images or applying complex effects to graphics.
Graphics Card- Graphics cards take digital data from the operating system and translates it into a signal that the display video understands. The signal travels along a video cable and into the monitor to display the image. Modern graphics cards are capable of displaying images without slowing the PC down. Professional graphics designers use a DVI (digital visual interface) between the graphics card and monitor …show more content…
The flow of data between the Ram and the processor is constant. When a user opens a program, the program is first copied from the hard disk to the RAM then to the processor at a very high speed where the program can be run. RAM works at the speed of electricity which is much faster than a hard disk which runs at disk speed.
Memory Storage- Graphics files need to be stored so that they can be modified, backed up or sent to a third party. Different ways to store files include;
Hard drive- The hard drive is a quick and easy way to store graphical files as it is the first place the computer system will open work from or save work to. Modern hard disks are very quick and have a large capacity and also have a cache memory to improve the performance.
CD-ROM- Most computer systems have a CD-ROM or DVD drives. These can be used to install software, store files and play DVDs.
Flash cards- Digital cameras and other devices use Flash cards to store images. There are several types of flash cards that come is different shapes and sizes with their own

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