Look at these pictures.

What is the similarity between them?

Can you distinguish between both of these?

By the end of this lesson, you should be able to:

Write down at least 2 differences between proprietary software and open source software.

Can you give me the example of proprietary software?

Can you give me the example of open source software?

Linux version of application programs are: Open office.org The Gimp Mozilla PHP-Nuke Open LDAP RedHat

Also called closed source software.It offers stable system with support if the

software fails or malfunctions.

It is a software provide for use, modification and redistribution.

Software that any programmer can download from the internet for free and modify with suggested improvements.

The only qualification is that changes can’t be copyright

What is the differences between proprietary software and open source software?

Proprietary software Open source software

Windows Mac OS Linux

Usability Security Number of utilities Efficiency as a server

Number of market share Best GUI Price Easy installation

Reinforcement

Activity

What have you learnt just now?