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. 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
6. 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.
9. Operating System Types
GUI –Graphical User
Interface
Multi-user
Multiprocessing
Multitasking
Multithreading
10. Graphical User Interface
A GUI Operating System
contains graphics and icons
and is commonly navigated by
using a computer mouse.
Example :
System7.x,Windows98,
11. 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,
16. 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
17. 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.
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