Operating Systems

By: Ryan Grant Y9S

What is an Operating System?

An Operating System (OS) is software that supports a computer's functions. Every basic computer must have an Operating System to run other functions, programs and applications. Operating systems perform basic tasks such as receiving input from a keyboard or mouse and sending output to the display screen and controlling certain devices such as disk drives or printers.

Some examples of an Operating system...

Here's a list of some operating system... DOS (Disk Operating System, Windows/ WIMP (Windows Icons Menus Pointing device), MacOS (Macintosh), Unix-Linux (the PC version of Unix)

The three types of interfaces used by Operating Systems

The three interfaces are... GUI (Graphical User Interface), CLI (Command Line Interface), and TUI (Text User Interface).


GUI is a type of interface that allows users to interact with devices through graphical icons and visual indicators. CLI is a system that allows the user to physically enter codes or commands that will affect a computer. TUI is the actually the same as CLI where you open a system and enter writing or commands for the computer to operate off of and use commands.