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Processor
Device Management Memory
Managemnt Management
File
Security
Operating System Management
System Error
Audit Detection
Interface
Types of Operating System
An operating system is categorised on the basis of the functionality provided by it.
Some major types of operating system are:
Single-user Operating System
A Single-user operating system is designed for use on one computer
by one user at a time. Windows, MS DOS, and Mac OS are single-user
operating systems.
Multi-user Operating System
User 2 User 3
A Multi-user operating system is designed for use on more than
one computer by several users simultaneously. Unix and Linux
are multi-user operating systems.
User 1
User 4 User 5
CUI Operating System
A Character User Interface (CUI) operating system lets
a user issue commands to a computer by typing the
instructions. These instructions consist of keywords that
are recognisable to the operating system. The instructions
are typed after a prompt, called command prompt. Each
instruction has to be remembered separately and typed
in a specific format. MS DOS and UNIX are examples of
CUI operating systems.
GUI Operating System
A Graphical User Interface (GUI) operating system lets a user issue commands to a computer by interacting
with various graphical components called icons, on the computer screen. The icons represent files, folders, and
programs that can be clicked, moved and double-clicked to perform various functions. Windows, Mac OS, and
Linux are examples of GUI operating system.
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