Which of the following is first generation computer?

A first-generation computer refers to a computer that was made during the first era of computer history, which is typically considered to run from the mid-1940s through the mid-1950s. These computers used vacuum tubes for circuitry and magnetic drums for memory. They were often enormous, taking up entire rooms, consumed a vast amount of power, and were very expensive to operate compared to later generations of computers. Their use was largely limited to government and large corporations for complex scientific and military calculations.

Notable examples of first-generation computers include:

– ENIAC (Electronic Numerical Integrator and Computer)

– UNIVAC (UNIVersal Automatic Computer)

– IBM 650

– EDVAC (Electronic Discrete Variable Automatic Computer)

These early computers were fundamental in the development of later, more compact, efficient, and affordable computing machines, leading to the widespread adoption and innovation in the field of computer science and engineering.