Your commands, ideas, demands and concepts form the data your system processes and stores. Without user input, a computer simply takes up desktop space and waits for directions, like a lost motorist ...

Input devices are tools that help us give information and commands to a computer. Input device examples include the keyboard, mouse, microphone, scanner, and touchscreen. Each device has a special use ...

An operating system is a collection (or suite) of programs that manages and controls the computer. Operating systems have many functions: A user interface is a program, or suite of programs that ...