Details of the Open Source Software, URL links and their Utilities
Commercial Software Similar Open source License Used where Download Link
MATLAB Scilab CeCILL Engineering (Electrical, Mechanical, Civil, Electronics, Embedded systems, Chemical), Science (Physics, Mathematics) http://www.scilab.org/products/scilab/download
Mathematica Maxima GPL Mathematics, Engineering http://maxima.sourceforge.net/download.html
Cadence pSpice ngspice BSD Engineering (Electrical, Electronics, Embedded systems) http://ngspice.sourceforge.net/download.html
Microsoft Office Open office LGPL All branches http://download.openoffice.org/
Microsoft Office LaTeX LPPL All branches http://www.latex‐project.org/ftp.html
Mathematica/Maple Sage GPL Precise arithmetic, algebra, symbolic computation http://www.sagemath.org/download.html
Microsoft Windows GNU/Linux GPL All branches http://www.gnu.org/software/software.html
Turbo C GCC GPL Engineering (Introductory Computing
– all branches)
http://gcc.gnu.org/releases.html
Pro/E BRL-CAD BSD Engineering (CAD) http://brlcad.org/d/download
MASM NASM, FASM BSD, BSD Engineering (Electronics, Computer Science) http://www.nasm.us/pub/nasm/releasebuilds
http://flatassembler.net/download.php
MS OFFICE Plotting tools Xmgrace, XFIG, GNUPLOT BSD, GPL,
Own license (but free)
Drawing the figures, plots, flow diagrams http://sourceforge.net/projects/graceplot/ http://xfig.org/art17.html http://www.gnuplot.info/download.html
Code composer Studio, IAR Workbench GNU
Binutils
GPL Assembler, Compilers for micro controllers and DSP Processors (MSP, VC33 etc) http://ftp.gnu.org/gnu/binutils/
VxWORKS RTLinux, RTAI GPL, GPL/LGPL
(kernel and user space respectively),
Real-time operating System for Desktop and Embedded Systems http://www.faqs.org/docs/Linux‐HOWTO/RTLinux‐ HOWTO.html
https://www.rtai.org/
KEIL 8051 SDCC GPL GCC SDCC compiler for 8051 controlers http://sdcc.sourceforge.net/index.php#Download
synopsis-CosmosSE, Mentor-Icstudio, Cadence-Virtuoso Xcircuit GPL schematic design http://opencircuitdesign.com/xcircuit/download.html
Mentor-ICstation, Cadence-Virtuoso Magic BSD Used for chip Layout design http://opencircuitdesign.com/magic/download.html
Modelsim ghdl, freehdl GPL VHDL compiler http://ghdl.free.fr/download.html http://freehdl.seul.org/
Matlab Octave GPL Numerical Computation http://www.gnu.org/software/octave/download.html
AutoCad KiCad, GPL CAD system http://kicad.sourceforge.net/wiki/Downloads