Lesson 05.2 - Introduction to Operating System (OS) - OS Interface Environment
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Transcript of Lesson 05.2 - Introduction to Operating System (OS) - OS Interface Environment
Lesson 05.2
- Introduction to Operating System (OS)
- OS Interface Environment
LEARNING AREA
>> System Software
>> Functions of Operating System
>> The Differences Between Dos And Windows Display
>> OS Interface Environment
LEARNING OUTCOME• STUDENT SHOULD BE ABLE TO:
a. Define operating systemb. State the function of operating system
INTRODUCTION
SYSTEM SOFTWARE• System software consists of programs that
control the operations of the computer and its devices.
• System software serves as the interface between the user, the application software and the computer hardware.
SYSTEM SOFTWARE• 2 Types of system software
a. Operating System
b. Utility Programmes
OPERATING SYSTEM• Program that is loaded into the computer• Coordinates all the activities among
computer hardware devices.• Controls the hardware in the computer,
peripherals, manages memory and files.• Enables the user to communicate with the
computer and other software
OPERATING SYSTEM• Example :
UTILITY PROGRAMMES• Utility programmes allows user to perform
maintenance-type tasks.• It has been integrated into most major
operating systems such as format, check and defragment disks
UTILITY PROGRAMME• Example:
Functions Of Operating System
Turn on the Computer1. It loads the operating system into the computer's
memory, also called booting2. Booting means to load and initialize the operating
system on a computer machine
WHEN
Functions Of Operating System
3. It can happen in two ways: warm boot or cold boot.
Warm Boot
Cold Boot
Functions Of Operating System
WARM BOOT :>> A warm boot means restarting a computer that is already on.
>>It normally happens after installing a new software or hardware or after an application crashes or stops working.
Functions Of Operating System
COLD BOOT :>> A cold boot means starting a computer that is
already off.
>> It happens when we turn on a computer that has been completely powered off.
OS Interface Environment
The user interface typically enables users:
to start an application programto manage disks and files such as formatting,
copying and renamingto shut down the computer safely by following the
correct procedures
There are three types of user inter face :
OS Interface Environment
Command-LineMenu - Driven
GUI
# Graphical User Interface (GUI)
DOS Vs Windows
Characteristics Of Os Environment Based (GUI)
Graphical User Interface (GUI) is an interface that combines text, graphic and icons to make software easier to be used.
It I s also called ‘user-friendly’.
Characteristics GUI
Interact with the software
Controls how you enter data and how the screen displays information
Represent computer resources such as files, programs and network communication