My Contrast

　 Data Data is raw material & unorganized facts that need to be processed . Information When data are processed, organized, structured or presented in a given context so as to make them useful, they are called Information. Data are plain facts. The word "data" is plural for "datum." When data are processed, organized, structured or presented in a given context so as to make them useful, they are called Information. It is not enough to have data (such as statistics on the economy). Data themselves are fairly useless. But when these data are interpreted and processed to determine its true meaning, they becomes useful and can be called Information. Data is the computer's language. Information is our translation of this language. Operating System The most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs. Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. Computer System A complete, working computer. The computer system includes not only the computer, but also any software and peripheral devices that are necessary to make the computer function. Every computer system, for example, requires an operating system. Data storage Computer data storage; memory, components, devices and media that retain digital computer data used for computing for some interval of time. Any data storage device; that records (stores) or retrieves (reads) information (data) from any medium, including the medium itself. Computer storage an electronic memory device; "a memory and the CPU form the central part of a computer to which peripherals are attached"