The following describes the correct names for common components of software so that when you experience a problem, you can effectively describe an issue that you're having and a technician can readily resolve it. User interface - this is the visual design of a program. It may contain squares, boxes, words, icons, and buttons. And this expense applies to microphones, digital cameras, PDAs, scanners, video cams, and more. Regardless of cost, it's important to understand that accessories can become "necessities," and that the best time to get them is the moment you buy a new computer. Waiting too long to accessorize can cause more problems than necessary because while you wait, manufacturers continuously develop new technologies - technologies that your computer won't be able to accommodate in the future. You'll need a can of compressed air and an anti-static rag to remove stubborn clumps of dust. Hold the can perfectly vertical and spray the fan being careful not to spray the dust off the fan onto other sensitive parts of the computer like circuit boards or inside the motor casing. Wipe up remaining dust with your anti-static rag and then reassemble the computer. Calculator has been a Windows accessory even from its first debut in Windows 1.0. For the life of us, we can't figure out why anyone other than a rocket scientist would want to install a different version than this free one that comes pre-installed. Windows calculator has two interfaces: an easy one, and a scientific one. Today, one only needs to learn how to manipulate a mouse, punch a few buttons on a keyboard, or really just turn the thing on to use a computer. It's hard for some folks to believe, but the computers of this generation almost run themselves! For fun, let's investigate just how little knowledge these thousand-dollar machines actually require. But along with computers, we've also been infiltrated with a little thing called "self-service." Today, there are more self-serviced resources than ever and in an effort to synchronize them with headquarter databases, they're provided via your inescapable computer. Here are some examples. Banking is self-serviced through the desktop-clad ATM machine.