yes
640x480 has more pixels, therefore it is sharper. Bigger numbers mean more pixels. More pixels make a sharper picture. 640x480= 307 200 pixels 640x360= 230 400 pixels
It's better to more pixels.
the 4 mega pixel 1gb camera would have more space but the 6 mega pixel camera takes a better picture
the larger the pixels the more compact the picture is so you dont see the little dots because there are more squares in the picture. so the higher the pixels the better the picture becomes. there are a million little dots in a pixel when you take your picture so if you have 3 pixels 3 million little dots in the picture the better quality.
3.2 would be better, but not by much. The higher the number of megapixels, the higher quality your image will be (and consequently, the more storage will be needed because they will be bigger files). So details that are present in a 10 megapixel camera will not be present in a 3 megapixel camera.
For any digital camera a Li ion battery is better than Nimh because it holds more charge and does not lose its charge nearly as fast when the camera is not in use.
MEGA=ONE MILLION PIXEL=PIcture ELement If you look closely at or examine with a magnifying glass a computer monitor screen you will see that it is made up of lots and lots of tiny dots. Each dot is an element of the picture or picture element - pixel. Each pixel is controlled by a signal from the computer so it can be turned off or on or made to show a colour. In this way a picture can be built up. The more pixels, the more detail in a photo. Low numbers of pixels in a photo will make a blurry looking photo, whilst many more pixels will give a photo which looks sharp, with lots of small detail able to be seen. Cameras are graded on the number of pixels that they can reproduce in a photo. The more pixels, the better the camera [usually!]. A camera with 10 megapixel resolution should take far better photos than a camera with only 6 megapixel resolution.
No, Camera pixels are hard-wired into the image sensor. All you can do is buy a newer model. However if you are desperate to increase the apparent sharpness or size of a picture you can buy specialized software that can add pixels using some sort of fractal logic. While there is no way to add pixels the camera would have recorded if it was just a higher megapixel camera to begin with - this software can realistically enlarge a picture and fill the gaps with more of the same as the pixels surrounding it.
Yes
For the most part, yes. The more pixels a camera has, the clearer the picture will be. However the clearer a picture is, the larger each picture is in size, therefor the more space it takes up on a card or the camera memory.
Pixels is a measure of the image size, each pixel is a dot. This has nothing to do with quality, more megapixels DOES NOT mean better quality pictures. A 10 megapixel camera has 10 million pixels (or dots) per image.
You can't. The no of pixels a camera has is determined at its manufacture. To get more pixels you'd have to replace the actual plate at the bottom of the camera that catches the incoming light. And that's not doable outside a very specialized workshop.