1. Open Office
2. GIMP
3. Octave
4. R
5. And others
HISTORY OPEN OFFICE
First, open office is an office suite, a rival to Microsoft Office, is based on a code of StarOffice is an office suite developed by StarDivision, and was acquired by Sun Microsystems in August, 1994, was acquired by Oracle in 2010, is released as a source projects Opening in July 2000, is available under two different software license is LGPL and SISSI; from version 2.0, he's only available under the LGPL, and software project called "Open Office", was changed to "OpenOffice.org" abbreviated OOO.
Features
1. Can run on multiple platforms, including Windows, Solaris, Linux and Mac OS X.
2. Supports ODF document format (Open Document Files) as an open office suite.
3. Open and save documents in Microsoft Office format
4. Export documents in PDF format
Application:
=> OpenOffice Writer
=> OpenOffice Calc
=> OpenOffice Impress
=> OpenOffice Base
=> OpenOffice Draw
=> OpenOffice Math
What are they looking for?
=> We are looking for people to:
=> Give feedback (input / sarah).
=> Writing or updating documentation.
=> Helping new users.
=> Recommending the project to others.
=> Testing code and report if there are any bugs or errors.
=> Fix an error or bug.
=> Providing advice to a particular feature (under development).
=> Writing and updating software.
=> Creating artwork.
=> Translating into various languages.
=> Whatever you see that need your help.
Comparison with MS.Office
=> Free and Pay
=> OpenOffice little bit slow if you have to open a complex document that uses Microsoft format
=> OpenOffice supports the old computer
=> OpenOffice is available as a portable application
=> Security: depending on the operating system
HISTORY GIMP
=> The GNU Image Manipulation Program (GIMP) is software for raster-based image manipulation
=> Running the GNOME desktop and
=> Released under the GNU GPL license
=> GIMP was originally developed for the X11 desktop running on the UNIX platform
=> It has been ported to some other operating system platforms that MS Windows and Mac OS
=> Graphics generated by the GIMP are stored with XCF format and can be exported to various image formats such as bmp, jpg, gif, pdf, png, svg, tiff, and many others
=> GIMP provides a lot of plugins that make it easier to process the image (image) quickly
Features
=> As a program for coloring
=> Expert quality photo retouching program
=> An online application for batch processing system
=> A product for image renderer
=> An application image format converter and much more
=> In addition, GIMP also provides export / import Photoshop files. So it can edit the image files that have been created in the windows
Specifications Gimp
=> File size: 11.6MB (download), 18-36MB (attached)
=> Publisher: PortableApps.com and GIMP team
=> Date update: 15 July 2007
=> Operating systems: Windows, Linux and others
=> License: free / open source GPL
