Categories of softwares

1. CATEGORIES OF SOFTWARES
SALMAN WAHEED
Dept of CS & IT
University of Lahore

2. CONTENTS
• Open source software
• Commercial Software
• Shareware
• Freeware
• Proprietary Software

3. OPEN SOURCE SOFTWARE
• Open-source software (OSS) is computer software with
its source code made available with a license in which the
copyright holder provides the rights to study, change, and
distribute the software to anyone and for any purpose.
• Open source software is software whose source code is
available for modification or enhancement by anyone.

4. WHAT IS SOURCE CODE?
• "Source code" is the part of software that most computer
users don't ever see, it's the code computer programmers
can manipulate to change how a piece of software a
"program" or "application“ works.

5. EXAMPLE OF OPEN SOURCE SOFTWARE
• Mozilla Firefox
• Google Chrome
• Android software

6. CONT..
• GIMP (GNU image manipulation program)
• Egoboo
• 7 Zip

7. COMMERCIAL SOFTWARE
• Commercial software, or seldom payware , is computer software that is
produced for sale or that serves commercial purposes.
• Software that is designed and developed for sale to the general public.
• Commercial software can be proprietary software or free and open source
software.

8. EXAMPLE OF COMMERCIAL SOFTWARE
• Oracle Databse
• Entrance (SQL based)
• Solaris (operating system)

9. SHAREWARE
• Shareware is a type of proprietary software which is provided (initially) free of
charge to users, who are allowed and encouraged to make and share copies
of the program, which helps to distribute it.
• Shareware is often offered as a download from an Internet website or as a
compact disc included with a magazine.
• Shareware is more likely the trial versions of the softwares.

10. EXAMPLE OF SHAREWARE
• Ardamax keylogger
• Internet Download Manager
• AVG AntiVirus

11. FREEWARE
• Freeware is computer software that is made available free of charge, but
which is copyrighted by its developer, who retains the rights to control its
distribution, modify it and sell it in the future.
• It is typically distributed without its source code, thus preventing
modification by its users.

12. EXAMPLE OF FREEWARE
• Skype
• Pidgin
• U torrent

13. PROPRIETARY SOFTWARE
• Proprietary software is software that is owned by an individual or a
company (usually the one that developed it).
• There are almost always major restrictions on its use, and its source
code is almost always kept secret.

14. EXAMPLES OF PROPRIETARY SOFTWARE
• Groupic
• Apple IOS
• Apache Flex

15. CONT..
• Windows OS
• Adobe Dreamweaver
• AutoCAD