What is Computer Graphics?

The term computer graphics includes almost everything on computers that is not text or sound. Today almost every computer can do some graphics, and people have even come to expect to control their computer through icons and pictures rather than just by typing.

Here in our lab at the Program of Computer Graphics, we think of computer graphics as drawing pictures on computers, also called rendering. The pictures can be photographs, drawings, movies, or simulations -- pictures of things which do not yet exist and maybe could never exist. Or they may be pictures from places we cannot see directly, such as medical images from inside your body.

We spend much of our time improving the way computer pictures can simulate real world scenes. We want images on computers to not just look more realistic, but also to BE more realistic in their colors, the way objects and rooms are lighted, and the way different materials appear. We call this work "realistic image synthesis", and the following series of pictures will show some of our techniques in stages from very simple pictures through very realistic ones.

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Computer repair: when the bits hit the fan

If you use a PC or Mac for business purposes, and it breaks and you're like many business people you're dead in the water. In a home setting, a broken personal computer is no fun either. Some people like fixing PCs, but if you're among those who would prefer to keep the silicon out from under your fingernails, you need a pro.

Many small business and home users rely on local computer repair shops. But who can you trust? The nonprofit consumer organization Center for the Study of Services has just published the results of a survey it did of local stores in seven cities that do computer repair, along with providing tips about computer repair in general.

Computer repair ratings for individual stores are available through its magazine, Consumer's Checkbook, for the seven metropolitan areas that the organization currently serves: Boston, Chicago, Philadelphia, Puget Sound, San Francisco/Oakland/San Jose, Twin Cities and Washington, D.C. But more general information applies elsewhere around the country as well.


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