Читать книгу Collins Complete Photography Manual - Collins Dictionaries - Страница 34

At one time computer monitors were generally of the CRT (cathode ray tube) type with big television-style picture tubes. LCD (liquid crystal displays) were very expensive and comparatively rare. Nowadays, however, LCDs are much cheaper and have largely taken over in the marketplace.

LCDs produce aflat, distortion-free image and are usually superior to cheaper CRT monitors in colour and contrast. Many computer systems are sold with inexpensive 15-inch LCD displays. These do not always have good Viewing angles’ – the brightness appears to change as you shift position. Larger 17-inch or 19-inch screens are more expensive but have better viewing angles and higher resolution, so that your pictures look sharper and clearer on the screen.

However, while all cameras and printers work with Macs as well as PCs, there is less choice of software for the Mac, although certain top image editing programs such as Adobe Photoshop and Elements are available for both PC and Mac.

The performance of any computer will be governed largely by its processor speed. This is a complicated and constantly changing technical area with many competing chip ‘families’ and variants. To generalize, though, any medium-priced computer is likely to have an adequate processor for digital photography. Even budget models will work well enough, though you may find some tasks taking just a little longer.