The history of computers
In 1984, Berners Lee's returned to CERN, which was also home to a major European Internet node. In 1989, Berners Lee published a paper called 'Information Management: A Proposal' in which he married up hypertext with the Internet, to create a system for sharing and distributing information not just within a company, but globally. He named it the World Wide Web
First generation of computer
The first computer was made between 1942-1955 some bad things about the computer was The computers were very large in size.
They consumed a large amount of energy. Vacuum tubes were the only electronic component available during those days. Vacuum tube technology made possible to make electronic digital computers. These computers could calculate data in millisecond.
second generation of computer
The second generation computers used transistors. The scientists at Bell laboratories developed transistor in 1947. These scientists include John Barden, William Brattain and William Shockley Smaller in size as compared to the first generation computers.
The 2nd generation Computers were more reliable Used less energy and were not heated Cooling system was required Constant maintenance was required Commercial production was difficult .
third generation of computers
The Third generation computers used the integrated circuits (IC). Jack Kilby developed the concept of integrated circuit in 1958. It was an important invention in the computer field. The first IC was invented and used in 1961.
- Smaller in size as compared to previous generations.
- More reliable.
- Air conditioning was required.
- Highly sophisticated technology required for the manufacturing of IC chips
- Used less energy
fourth generations pf computers
The fourth generation computers started with the invention of Microprocessor. The Microprocessor contains thousands of ICs. Ted Hoff produced the first microprocessor in 1971 for Intel.
- More powerful and reliable than previous generations.
- Small in size
- Fast processing power with less power consumption
- The latest technology is required for manufacturing of Microprocessors.
Scientists are working hard on the 5th generation computers with quite a few breakthroughs. It is based on the technique of Artificial Intelligence (AI).
inputs and outputs
the inputs are
the outputs are
3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file The creation of a 3D printed object is achieved using additive processes In an additive process an object is created by laying down successive layers of material until the entire object is created.
The Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or TV, and uses a standard keyboard and mouse. It is a capable little device that enables people of all ages to explore computing, and to learn how to program in languages like Scratch and Python.
The Cube 3 is a cute 3D printer to say the least