Generation	Examples of Computer	Electronic Components	Years	Used for?	Size	Interesting fact about each
1		Vacuum Tubes	1940-1956	calculation	Took up  the entire Room	The full form of ENIAC is “Electronic Numeric Integrated And Calculator” ENIAC was a very huge and big computer and its weight was 30 tones.
2		Transistors	1956-1963	The first computers of this generation were developed for the atomic energy industry.	Took up half of  the room	These were also the first computers that stored their instructions in their memory, which moved from a magnetic drum to magnetic core technology.
3		Chips (Integrated Circuits)	1964-1971	Running many different applications at one time with a central program that monitored the memory	could fit in a desk	The development of IC gave birth to a new field of microelectronics.
4		Microprocessors Computers on  a chip	1971-Present	any arithmetical or logical functions to be performed in any program	fits in a  desk and palm of the hand	Ted Hoff of U.S.A developed first micro-processor, the Intel 4004. Today's latest microprocessor contains tens of millions of microscopic transistors.
5.		Networking Parallel Computing	Present and Beyond	everything	unknown	Computer will possess artificial intelligence and it would be able to take self decisions like a human being.