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Lesson 4

The document discusses software and operating systems. It explains the basic functions of an operating system and differences between hardware and software. It also describes system software, application software, and how the central processing unit executes instructions.

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Ahmed Iraky
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0% found this document useful (0 votes)
21 views17 pages

Lesson 4

The document discusses software and operating systems. It explains the basic functions of an operating system and differences between hardware and software. It also describes system software, application software, and how the central processing unit executes instructions.

Uploaded by

Ahmed Iraky
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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‫مدرسة البرمجه مع‬ Information and Computer

‫المهندسه ساره عناني‬ Technology


ICT

The first axis : The role of ICT in our lives

Lesson4
Software and operating
system

Presented By: Eng.Sara Enany


Lesson4
Software and operating
systems

‫البرمجيات وانظمة التشغيل‬


main points

Explain the basic function of O.S and software

Explain the difference between hardware and software


Software

System Software Application


O.S Software
Application
Software

• Directs the computer to execute a specified job.


• Such Word ,Excel, Internet Explorer.
System Software
O.S

• controls a computer’s internal functioning


.
• controls such peripherals as monitors,
printers, and storage devices.
• Such Windows,MAC,Android.
The difference between hardware and software
The SOFTWARE: is the set of
programs (instructions) that
make the computer do the
processing and produce the
desired result.

HARDWARE: is the physical part,


represented in the computer for its
mechanical parts, electronic and
magnetic short, the hardware is all
that can be touched.
Basically consists of: CPU (central
processing unit), memory units and
input or output.
The steps to execute any instruction
‫خطوات تنفيذ التعليمات علي الكمبيوتر‬

1-Ask the computer to do some thing using the input devices


like open Microsoft word program by clicking on it using
the mouse
2-The computer tells the Operating system to execute it .
The O.S access to the program and open it .
Central processing unit(CPU)
)‫وحدة المعالجه المركزيه(عقل الكمبيوتر‬

Central processing unit(CPU) is a hardware unit.

It controls what and how the data is processed.


Writing Example

• When you type , the program tells the


O.S which then ask the cpu to show
information on the screen .
What will happen if the program
has a problem
• If the program has a problem before the
O.S tells the CPU to save everything ,
you can lose your work.
Remember to save your
work regularly
https://www.youtube.com/channel/UCp6rIHM1QZ131oX4ykWymkQ

https://www.facebook.com/programmingwithSara
The definition of software
‫تعريف البرمجيات‬

SOFTWARE: instructions that tell a computer what to do.


The two main types of software are system software and application
software.
System software controls a computer’s internal functioning through
an operating system, and also controls such peripherals as monitors,
printers, and storage devices.
Application software:directs the computer to execute commands given by the
user and may be said to include any program that processes data for a user.
Such Word ,Excel,Internet Explorer.

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