The simplest digital cameras are point-and-shoot cameras — simply aim them and push the button. They are very easy to use and are suitable for people who simply want to take family or vacation snapshots. The downside to point-and-shoot cameras is the lack of control you have over focusing and image adjustment. As you go up the scale to more expensive cameras, you get more of these kinds of options. The simplest point-and-shoot cameras often have a low megapixel rating — around two megapixels.
Digital technology is finding a place in almost everyone's lives. From digital music to digital movies we are constantly exposed to images and sound that have passed from the traditional analog domain into the new digital formats. Digital photography is one of those formats and is becoming more popular every year. There are lots ...
Tripods are a necessity for anyone who wants to take the best pictures possible. They are useful for many different situations by helping to minimize camera movement which can cause an image to blur. Blurring is especially noticeable in photographs taken with extended exposures (under low-light conditions, for example) and becomes more apparent when ...
Digital cameras are electronic devices so they need a power source of some kind. The most convenient way to power your camera is with batteries. Although some models can be connected directly to an AC outlet, this is impractical for anything but studio use. Batteries are used to power the flash and the LCD ...
Digital photographs are the result of light hitting the image sensor. Too much light and the photograph will be washed out. Too little light and the photograph will be too dark. The shutter determines how much light enters the camera, and there are two settings which are related to the shutter -- aperture and shutter ...
A camera shutter is a mechanical device which permits light to enter the camera body for a specified period of time. The longer the shutter is open the more light enters the camera. Although modern digital Single Lens Reflex (SLR) cameras usually have a mechanical shutter, electronics can achieve the same effect by clearing ...
Even though digital photography is a revolutionary new way to take pictures, it is very much based on traditional photography and uses many of the same principals. Both types of photography require a lens to focus the light and a shutter to allow the light to enter the camera. The main difference between digital and ...
Almost anyone with a passing acquaintance with the Internet is familiar with spam. Just as junk mail is the demon of the Postal Service, spam is the scourge of e-mail. Spam is unsolicited e-mail - often with some alleged commercial purpose, but almost always unwelcome. It's sent in bulk by automated programs to millions ...
Combating infections and removing viruses is now big business. Lesson one is 'knowing the enemy'. THE ENEMY - Crackers and Hackers Geeks make a distinction between crackers, who break into systems to do damage, and hackers who enjoy taking programs apart just to see how they tick. We'll stick with the more common, though ...
Malware is any program designed to do harm, though sometimes what's considered harmful is a bit vague. Viruses, Trojans, spyware, adware, pop-ups, even spam and more have all qualified. Sometimes, though, one man's junk is another man's treasure. Adware Adware actually has two flavors - software supported with advertising, or a more malicious sort. ...