Four Generations of Computer

First Generation

The first generation of computer used vacuum tube technology as basic components. They consumed a lot of electricity and produced lots of heat. They were also very big which meant that they were not portable. They were very expensive

Second Generation

These computers were cheaper than the previous generation and more reliable. They consumed less energy, they were more compact in size and they were faster too. They used magnetic cores as primary memory devices and they used magnetic tape or disks as secondary storage devices.

Third Generation

The main future of this generation is that it used integrated circuits. It was also cheaper and smallerhan its predecessors

Fourth Generation

This generation uses microprocessors and thousands of integrated ciruits can be built onto a single silicon chip. This means that the components that filled an entire room in the first generation can now fit in the palm of your hand.

Future computers

A fifth generation of computing devices based on artificial intelligence are still being developed. There are already apps with voice recognition being used today - like Siri on iPhones and iPads and scientists are working to one day make artificial intelligence a reality