The first coalition government was formed by the Janata Party ,under the able leadership of Sri Morarji Desai. The time period of this government was in between 24th March 1977,to 15 th July 1979. It was the first non-congress coalition government,inIndian political history .

Third Generation of Computers:

The Third generation computers were faster, smarter, and user friendly compared to previous computers.

These generations of computers were far more advanced than their counterparts as they used and utilized Integrated Circuit IC as their main component.

The IC was advanced technology at that time and therefore increased speed and efficiency, outsmarting the other computers in the market.

Fourth Generation of Computers:

These 4th generations of computers were more reliable and user-friendly than other generations.

They used microprocessors as their main component and installed them in their circuit, which enhanced the overall performance like speed, accuracy, efficiency, and reliability.

The microprocessor increased the computer’s speed, making them multitask, and multiprogramming eventually increased the overall performance.

Computer graphics deals with generating images with the aid of computers. Today, computer graphics is a core technology in digital photography, film, video games, cell phone and computer displays, and many specialized applications. A great deal of specialized hardware and software has been developed, with the displays of most devices being driven by the computer graphics hardware.

There are many softwares to use for 3D printing. But the best software is Repetier host, which i have been using for 4 years. it is easy to install and use even we can see our printer status on the internet and give print to print the model using this software. This software is totally free of cost. It has three slicer all are good.

STL is a type of file format for the 3D printer(like .jpeg for images), CNC, which is created by a company name 3D Systems.The full form is "stereolithography". it contains a set of G-codes which gives direction to move  3D printer head in cartesian co-ordinate system.

Yes, you can use Google Sketchup for 3d printing as a beginner and intermediate level. But for the professionalism of accuracy and product level try to handle with licensed cad softwares.

SKETCHUP IS DONE ON SOFTWARE , THE SOFTWARE HAS VARIOUS EDITION LIKE PRO ,, ADVANCE,BASIC , ULTIMATE ETC  . S/W IS DEVELOPED BY VARIOUS 3D MAKING COMPONY .. YOU CAN GET ONE WHO SUITS YOU