Networks can interconnect with other networks and contain sub-networks. The distinction is both technical and cultural. The display on a monitor is made up of a collection of dots called pixels. For monochrome screens, a pixel contains one dot. By varying the intensity of the dots, you can display up to 256 shades of gray or millions of colors.
Pixel stands for picture element.
RAM is the place in a computer where the operating system, application programs, and data in current use are kept so they can be quickly reached by the computer's processor. However, the data in RAM stays there only as long as your computer is running. When you turn the computer off, RAM loses its data. Scanner A device that interprets a photograph or printed document and converts it into pixels for display on a computer. In general, a server is a computer program that provides services to other computer programs in the same or other computers.