First Generation

First Generation (1944-1959) Vacuum tube as a signal amplifier, it was a typical first-generation computer. Initially, vacuum tubes (vacuum-tube) are used as a component of the signal amplifier. Raw materials consist of glass, so much has disadvantages, such as easily broken, and easy to distribute the heat. This heat needs to be neutralized by other components that serve as a coolant. And with the additional component, the computer finally appeared to be a big, heavy, and expensive. In 1946, the world’s first electronic computer the ENIAC essay made. The computer contained 18,800 vacuum tubes and weighs 30 tons.
So large in size, to the point that requires a separate classroom. In the seems image ENIAC computer, this is the world’s first electronic computer that has a weight weighing 30 tons, length 30 M, and 2. 4 M high and requires 174 kilowatts of electrical power. Colossus was the first electronic computer in this era. It’s every aspect that was kept secret by the British Government. This is the world’s first electronic computer that has a weight weighing 30 tons, length 30 M, and 2. 4 M high and requires 174 kilowatts of electrical power.
In 1945, Von Neumann architecture was introduced. Eckert and Mauchly began working on EDVAC (Electronic Discrete Variable Automatic Computer) but it never completed. Later Von Neumann developed his own EDVAC (IAS machine).

In 1946, the development of ENIAC (Electronic Numerical Integrator and Computer), which was started in 1943, was completed. Some other computers of this generation are UNIVAC, MARK II, MARK III, Z2, Z4, SSEC (Selective Sequence Electronic calculator), and some IBM computers series such as IBM 604, IBM 650, IBM 701, IBM 702.
In 1954, the first version of FORTRAN (Formula Translator) was published by IBM.

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