OPERATING SYSTEMS (OS)
Operating System is a type of software that allows computer hardware to communicate with software. A computer without OS is a mere machine
Ex: DOS (Disk Operating System), Linux, Solaris
Types of operating systems
Graphical User Interface (GUI)
GUI is an interface, which allows us to interact with electronic devices like mobiles, gaming devicesand Mp3 players using some graphical icons
Ex:Windows 98, Windows CE, System 7.X
Multi-user operating system
Application software which allows multiple users to access the computer with time sharing system
Ex: Linux, UNIX, Windows 2000
Multiprocessor operating system
An operating system which supports the utilization of two or more processors on single computer Ex: Linux, UNIX, Windows 2000
Multi-Tasking
An operating system which supports multiple processes at the time Ex: Unix, Windows 2000
Multithreading
This operating system will allows the software to perform some parts of program to run concurrently
Ex: Linux, UNIX, Windows 2000
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