3. Difference of a Software Engineer
from a Programmer
While a programmer
creates the codes that
make a program run, a
software engineer creates the
designs the programmer
implements.
5. Operating System
The Operating System is the
most important program that
runs on a computer. Every
general-purpose computer
must have an operating
system to run other programs.
8. Operating System Types
GUI –Graphical User
Interface
Multi-user
Multiprocessing
Multitasking
Multithreading
9. Graphical User Interface
A GUI Operating System
contains graphics and icons
and is commonly navigated by
using a computer mouse.
Example :
System7.x,Windows98,
10. Multi-user
A multi-user operating system
allows for multiple users to
use the same computer at the
same time and different times.
Example :Linux, Windows
2000,
15. Basic Tasks of an Operating
System
Recognizing input from the
keyboard
Sending output to the display
screen
Keeping track of files and
directories on the disk
Controlling peripheral devices
16. Applications Software
It is also called end-
user programs.
It includes programs that do
real work for users.
It is the general designation
of computer programs for
performing user tasks.
18. A layer structure
showing where
the operating system
software and application
software are situated while
running on a
typical desktop computer
Operating System and Application
Software
19. Programs of an Applications
Software
Database
Programs
Games
Web Browsers
Word
Processing
Spreadsheets
20. Categories of an Application
Software
Vertical Application-designed
for a particular type of
organization.
Horizontal Application- are the
most popular and widespread in
departments or companies.
21. Conclusion
The operating system itself can be
considered application software when
performing simple calculating, measuring,
rendering, and word processing tasks that
not used to control hardware via command-
line interface or graphical user interface.
This does not include application software
bundled within operating systems such as
a software calculator or text editor.
22. Questions
1. It means computer instructions or data. Anything that can be stored
electronically is called _______.
a. Software b. Hardware c. Peopleware
2. Who creates the codes that make a program run?
a. Software Engineer b. Programmer c. Hardware
Engineer
3. These are software applications except ,
a. Web Browser b. Mac c. Word
Processing
4. Is the most important program that runs on a computer.
a. Operating System b. Application Software c. Computer
5. It contains graphics and icons and is commonly navigated by using a
computer mouse.
a. Graphical User Interface (GUI ) Operating System
b. Multiprocessing
c. Horizontal Application