generation of computer

Question 1

1st generation computer
dates
electronic component
speed
I/o device

Answer 1

1940-1956
vacuum tubes(developed by Lee De Forest -1908)
millisecond
punch cards

Question 2

2nd generation computer
dates
electronic component
speed
I/o device

Answer 2

1956-1963
transistor(William Shockley, John Bardeen and Walter Brattain-1947)
microsecond
punch cards

Question 3

3rd generation computer
dates
electronic component
speed
I/o device

Answer 3

1964-early 1970s
ICs( Jack Kilby-1958)
nanosecond
keyboards/ monitor

Question 4

4th generation computer
dates
electronic component
speed
I/o device

Answer 4

1970s- till date
LSI and VLSI
picosecond
keyboards/monitor/ others

Question 5

5th generation computer
dates
electronic component
speed
I/o device

Answer 5

Present and beyond
biochips
more than femtosecond
advancement in I/o