Yes and No
Bit is the smallest unit of information that can be understood by computers. Bit 2 state declared; "Yes" and "No" (in other terms Positive / negative, or in the notation 0 / 1). The information in the computer is handled in a way to explain something with "Yes" or "No", including the monitor. The monitor was developed by the small squares (pixels / cell) that contains information / bits that determines what color will understand ditampilkan.Untuk bit, we take the example of a black screen and white (1 bit), if the pixel states "Yes" then a box will be white, if the pixel declared "No" then the box will be black.
In pixels that can display 2-bit color, meaning there are 2 statements "Yes" and 2 claims "No", then the number of colors can be displayed 2 bits x 2 = 4 color statement. Pixel is capable of displaying a 3-bit means 2 x 2 x 2 = 8 colors, 4 bits means 2 x 2 x 2 x 2 = 24 = 16 colors and can be concluded that seterusnya.Jadi bit pixel depth is the capability of storing bits or information, in this will affect the number of colors that can be displayed.
Bits and File Format
Each image file format that we use on the Web have the ability to store a different color. As we know, a common image formats used on the Web are GIF, JPEG, and PNG. GIF can display colors 8 Bit (256 colors), JPEG display up to 24 bit color or more than 16 million colors, and PNG can display up to 32 Bit color.
However, any number of colors you use in the picture, the display is determined by the end of fixed kemampuar computer screen displays colors.