Although mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). These were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1] Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space
computers have come a long way since british mathematician charles Babage invented his Difference engine,infact he made a seed for this computers with his invention .
.from this machine computer has made its way to modern super computer
here are the some of the days in computer history
1642 Blaise Pascal ,France ,makes an early adding machine.
1820 Charles xavier cdmor,France makes an Arithrometer which can perform arithematic
calculations.
1822 Charles Babbage designed his difference engine
1834 Charles Babbage designed the anayltical engine
1944 Harvard's Mark-1 first digital computer
1953 First IBM Electronic digital computer (IBM 701)
1956 First hard disk drive IBM
1963 ASCII introduced
1971 intel builds the Microprocessor
Wang 1200 world's first word processor
1972 Email intoducesd
1975 William H.Gates founded Microsoft
1976 First Apple computer
1977 Crag-1 first super computer
1980 first laptop
1982 Worldwide 200 computers connected to internet
1984 Apple macintosh launched
1989 100,000 hosts on intenet
1995 Amazon .com founded
1998 Google founded
2000 Dot-com crash
2005 over 200 million broad band lines worldwide
2009 windows 7 launched by microsoft
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