Digital Camera Memory

Some digital cameras come with built-in memory. Built-in memory is usually just a small amount and insufficient for any but the most occasional photographer.

Most camera memory is stored in devices that use what's called “flash memory.” Flash memory is a type of erasable read-only memory that requires no moving parts, and is commonly found in all sorts of computing devices, cell phones and other electronics.

There are a number of different flash memory cards, including Compact Flash, Memory Stick, MultiMedia Card (MMC), Secure Dgital (SD)SmartMedia and xD (extreme Digital). Different camera manufacturers use different cards in various camera models. Only MMC and SD cards are interchangeable.

Digital vs. Analog Video – No Contest

Sometimes, the advantages of one technology over a competitor aren't clear-cut – such as with VHS vs. Beta. But in other situations, one technology is the clear winner. When it comes to digital vs. analog video, there is simply no contest.

Digital camcorders use the binary language of computers. The signal is made up of 0's and 1's… yes or no… on or off. This type of signal is clearer and less corruptible than analog. Digital video signals can carry more information than analog, too. This means the resulting images are richer, clearer and sharper than analog video could ever hope to be. Finally, digital camcorders are “plug and play” – all you need is the software.