Correct Answer : Option (A) - First generation computer
The first generation computers include ENIAC, EDVAC, UNIVAC, IBM-701, and IBM-650. These computers were large and very unreliable. They would heat up and frequently shut down and could only be used for very basic computations.
UNIVAC is an example of computer. UNIVAC 1, the first commercial computer was launched on June 14, 1951. This computer was first used in United States presidential Elections in 1952.
UNIVAC stands for Universal Automatic computer which was produced in the united states. It was designed principally by J. Presper Eckert and john Mauchly, the inventors of the ENIC.