Transistors were first time used in __________ computers.

Transistors were first time used in Second Generation computers. The period of second generation was 1959-1965. This generation using the transistor were cheaper, consumed less power, more compact in size, more reliable and faster than the first generation machines made of vacuum tubes. In this generation, magnetic cores were used as primary memory and magnetic tape and magnetic disks as secondary storage devices. In this generation, assembly language and high-level programming language like FORTRAN, COBOL were used. There were Batch processing and Multiprogramming Operating system used.