Page 21 - Computer Class 08

8 Multi-User : Multi-User operating system such as UNIX, Windows NT, Windows 2000

can support more than one user to process a job at a same fraction of time.
8 Multithreading : The ability of an operating system to execute different parts of a
program called threads.

8 Real-time : They perform processes based on the real time inputs. For example:
Computers that are used in industries, ROBOTICS, online editing, broadcast etc.

The Operating Environment

In computer software, an operating environment or integrated applications environment is
the environment in which users run application software. The environment consists of a user
interface provided by an application manager and usually an application programming
interface to the applications manager. An operating environment is usually not a full
operating system but is a form of middleware that rests between the OS and the application.

For example, the first version of Microsoft Windows, Windows 1.0, was not a full operating
system, but a GUI laid over DOS albeit with an API of its own. Similarly, the IBM U2 system
operates on both Unix/Linux and Windows NT. Usually the user interface is text based on
graphical, rather than a command line interface, which is often the interface of the
underlying operating system.

Character User Interface (CUI) Graphical User Interface (GUI)

It accepts input in the form of characters It consist of icons, files and menus on
and numbers. Each process is carried out which a user simply clicks to make them
by giving a command or a procedure. For work. You do not need to remember the
example : Microsoft Disk Operating complex command lines or procedures.

System (MS-DOS). GUI is pronounced as gooey.

Windows 10 is the latest version of GUI based Operating System launched on July 29, 2015
by Microsoft as part of the Windows NT.

Open Source Software

Open source software (OSS) in any sort of computer software that’s distributed with its
source code available for modification. That means it usually includes a license for
programmers to change the software in any way they choose: they can fix bugs, improve
functions or adopt the software to suit their own needs.

Let us know about different open office applications and their similarity with Microsoft
applications.

OpenOffice Writer : It is similar to Microsoft Word. Writer is used to prepare documents.

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