CATEGORIES OF SOFTWARESSALMAN WAHEED

Dept of CS & IT

University of Lahore

CONTENTS

• Open source software

• Commercial Software

• Shareware

• Freeware

• Proprietary Software

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.

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.

EXAMPLE OF OPEN SOURCE SOFTWARE

• Mozilla Firefox

• Google Chrome

• Android software

CONT..

• GIMP (GNU image manipulation program)

• Egoboo

• 7 Zip

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.

EXAMPLE OF COMMERCIAL SOFTWARE

• Oracle Databse

• Entrance (SQL based)

• Solaris (operating system)

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.

EXAMPLE OF SHAREWARE

• Ardamax keylogger

• Internet Download Manager

• AVG AntiVirus

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.

EXAMPLE OF FREEWARE

• Skype

• Pidgin

• U torrent

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.

EXAMPLES OF PROPRIETARY SOFTWARE

• Groupic

• Apple IOS

• Apache Flex

CONT..

• Windows OS

• Adobe Dreamweaver

• AutoCAD