Computer Generation First Generation 1940-1956:Vacuum Tubes

A generation refers to the state of improvement in the product development process, in each new generation, the circutry.
Ha's gotten smaller and more advanced than the previous generation before it. Five genrations are come in the views, which are described hereunder as 
First Generation - 1940-1956:Vacuum tubes
The first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. The UNIVAC and ENIAC computers are examples of first -generation computing devices.
The UNIVAC was the first commercial computer delivered to a business client , the U.S census Bureau in 1951.
The UNIVAC was the first  commercial computer delivered to a business client the U.S census bureau in 1951.
The ENIAC, weighing 30 tons, using 200 kilowatts of electric power and consisting of 18'000 vacuum tubes 1500 relays and hundreds of thousands of resistors, capacitors, and inductors, was completed in 1945.