Computers have evolved through several generations, each marked by significant tech advancements.

Generations of Computers:
1.First (1940s-1950s): Vacuum tubes, huge machines like ENIAC.

Example: ENIAC (1946)

Characteristics: Large, slow, unreliable.

2.Second (1950s-1960s): Transistors replaced vacuum tubes.

Example: IBM 7094

Characteristics: Smaller, faster, more re
liable.