1. AutoCAD ( A basic CAD software for design and drafting purpose)
2. Pro/Engineer ( A complete parametric 3D CAD/CAM/CAE software)
3. C Language (A programming language)
4. ANSYS ( An analysis or simulation software)
AutoCAD and its Capabilities
AutoCAD is a drafting software which involves drawing of 2D objects as well as 3D modelling.
Importance of AutoCAD
Being a Mechanical student, one need to do final year project. It involves experimental/fabrication work or theoretical analysis. To understake any project, one need to use at least one software or more.
For experimental work, the components of parts should be fabricated with required dimensions. So, 2D or 3D drawing/models are required to be prepared in AutoCAD or in other drafting software. After creation of the drawing, printout/drawing-sheet of it must be given to fabricator who will create the component in physical form.
This procedure is same as performed in any design and manufacturing industries. The design department sends drawing to manufacturing department and manufacturer prepares mechanical component or system based on it. Thus, one should know how to draw, analyse and prepare drawings in AutoCAD.
Pro/Engineer Capabilities
Pro/Engineer is a complete Mechanical package of drawing, modelling and analysis. Pro/Engineer's design package includes 2D drawing, 3D models and assembly. Pro/Engineer also does functions like 2D CAD, 3D CAD, customization, Data exchange like IGES (Initial Graphics Exchange Specification) and other formats, Dynamics publishing, engineering calculations, Visualization and mock up etc.
C Programming Language
Being a mechanical student, there is a great importance of C language because when you learn computational subjects, you need to use C programming to do the calculations for solution by numerical methods and most methods in computations are iterative as well as trial and error one. So, in programming by C, one can use loops, decision making, functions, arrays and file management to serve the purpose of solution of the numerical methods used for given problem's physics. There are plenty of programming languages are available but C is one of best among them. If you use MATLAB, it will require more memory but less skills, FORTRAN is also competitive to C but if you know C language, there is no need to learn other programming and if it is required to learn, you can learn easily as all programming languages are quite similar.
Finite Element Method (FEA) is one of the numerical methods in science that mostly deal with finding approximate numerical solutions of problems like structural, fluid, thermal or fluid structure interface(FSI). Normally, for thermal and fluid problem, software package like FLUENT and GAMBIT are popular. But latest version of ANSYS includes FLUENT too.
Hence, without use of software, it is I think almost impossible to work or research in Mechanical Engineering. So, If you are early years of your study in graduation in Mechanical, you need to learn these software as soon as possible because nothing will be of no use, each and every things you do, will work for you some day.