Btec National in It (Qcf)

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LIMITATIONS (i. e. disadvantages) the hardware can have when creating digital graphics

a) graphics card

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Takes data from the CPU and turns it into pictures. A graphics card is a type of display adapter or video card installed within most computing devices to display graphical data with high clarity, colour, definition and overall appearance. Also known as a graphics adapter, graphics controller, graphics accelerator and graphics board.

Graphics card allows you to run more applications at the same time. If it is a high quality one it means that there will be more colours which means nicer looking pictures. However, the graphics card has some disadvantages, with higher resolutions and colours, there is a performance hit, which could be big or small This is since there is much more information to deal with as well as more pixels to update on-screen.

b) (amount of) internal memory e. g. RAM

Internal memory is the internal hard drive. This is a primary storage device used to store a user's files and application. There are different types of internal memories. External and internal. External memory is an easy way to add additional storage. For example, the RAM (random access memory) is the memory or information that is used to run programmes.

You can clear or clean out the internal storage when it gets to its limit. One disadvantage is you cannot transfer this information like what a USB does. Internal drives are also cheaper to run, this is also connected directly to the computer and this works faster than external storage.

c) processor

A small chip that resides in computers and other devices. Its basic job is to receive input and provide the appropriate output. For example, one type of processor is windows. Windows can run an I7 or an I8 processor, the higher the number the increase of speed.

One advantage of a processor is the fast calculations of mathematical data. Also, Dual Core processors have better performance when compared to a single core processor.

d) input devices e. g. digital camera

This is a piece of a computer hardware equipment used to provide and controls signals when passing information. For example, a keyboard is an input device, this allows messages and text to be sent or uploaded on to the system.

One advantage of a mouse is its faster to select options by a mouse than keyboard, plus they are small, and they don’t take much area. However, they are easily damaged and can be easily clogged up with dirt. Also, they are hard to use if there is no flat surface.

e) camera card e. g. SD card

Camera card is a memory card that stores images, they are compatible with most digital cameras. For example, an SD card keeps a capacity of images, audio, text and videos stored, you can transfer and upload images, audio, etc by using this.

One advantage for a SD card is it is compatible and portable, so you can insert it into a device and transfer information whenever. However, most people use cloud storage, which restricts the SD card usage.

f) storage devices e. g. hard drive

There are two type of storage devices used in the computer, such as RAM (random access memory) and secondary storage device which can be removable. Also, its known for porting and exporting data files and objects.

One advantage is pennies per gigabyte, no other system can compete with this. However, one disadvantage can be when moving disk surface can be damaged.

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