That is correct, it is not an optical view finder, though that shouldn't bother you too much. Most cameras have a viewing area which is nearly 100% of the actual image be recorded; this however is not true for most optical view finders. Most view finders are substantially less than 100%, Maybe even closer to 90%. That's not very accurate for setting up a shot.
Walmart does not sale digital camera keychains. The closest they have to digital camera keychains are LCD photo keychains that display your digital photos.
Optical resolution
They're usually fitted with a colour LCD or TFT display.
"Digital" is related to the word "digit", in its sense of a number. In a device like a computer, all of the information is translated to binary numbers. Sounds and photographs are reduced to numbers, and are referred to as "digital sounds" or "digital numbers". A digital camera is a camera which records images in this way. In terms of a display, a "digital display" on a clock or speedometer or such similar device displays numbers, digits, to convey the information. An "analog display" on the other hand, displays the information on a dial.
you can preview pics on a built in display and download pics to a computer
It is an input device because you are inputting pictures from the camera to the computer. It could also be considered an output device since it can display the pictures on its LCD display.
SLR camera
Assuming you're talking about a digital camera - it's the difference between the refresh rate of the monitor) and that of the camera's display. The refresh rate is the number of times per second that the display (monitor or camera) is wiped and rebuilt.
The only color that I have found the r707 digital camera in is silver. While it has many picture color options it doesn't seem that the actual camera itself has any other color choices.
Most digital cameras have a feature that will allow you to view your photos right from your camera's display screen!
Digital Camera!
A Canon digital camera battery can be replaced by buying a Canon digital camera battery and putting the Canon digital camera battery in the Canon digital camera battery socket of the Canon digital camera.