1. First Generation (1940s-1950s): Used vacuum tubes for processing and magnetic drums for memory. Very large and expensive, and required a lot of maintenance.
2. Second Generation (1950s-1960s): Used transistors instead of vacuum tubes, which made computers smaller, faster, and more reliable. Magnetic core memory was also introduced.
3. Third Generation (1960s-1970s): Integrated circuits were developed, allowing for even smaller and more powerful computers. Operating systems and high-level programming languages were also introduced.
4. Fourth Generation (1970s-1990s): Microprocessors were invented, leading to the development of personal computers. Graphical user interfaces and networking capabilities were also introduced.
5. Fifth Generation (1990s-present): Advances in artificial intelligence, virtual reality, and quantum computing have characterized this generation. Computers have become even smaller, faster, and more powerful.