hardware- output devices

monitor

• takes signals from a computer and displays it on the screen
• size is measured diagnonally from corner to corner in inches. also come in different aspect ratios (width and height of a image depending on the capabilities of the monitor)
• most monitors have a resolution of 128-x1024pixels. dot pitch tells you the distance between pixels- lower values give a sharper image
• new computer systems use TFT(thin film transistor) and LCD (liquid crystal display) technology. these are thin, light and portable compared to  old CRT (cathode ray tube)
• plasma screens give better picture quality especially for larger screens, making them suitible for specialist uses such as in hotels or gyms
• LCD screens don't always give a good picture as CRT's and can be hard to view at some angles. LCD's can struggle with moving images making…