Second Generation

         Noble Prize winners Jojn

Burdeen, Walter H.Brattain and 

 William B.Shockley jointly invented

transistor in 1948-1949 . Magnetic

core of transistor is more capable 

of storing information than vacuum

tube. The computer using transistor

as storage media are classified as 

second Generation computers . One 

transistor could do the task of 1000

vacuum tubes . Due to this reason, 

it seemed that smaller and faster 

computer can be replaced by 18 

transistors . IBM 1401 is an example

of this advantage. In this generation computer are relatively smaller than the First Generation computers and they are much faster and reliable . 

         Generally purpose computer was first developed by IBM . In 1950 IBM developed IBM 650, a general purpose computer. Similarly in 1951 Remington Rand developed UNIVAC-1 which could be used in business data processing . During this period. many other companies were also involved in developing computers .