класс 4 02 презентация

The first calculating machine.
At all times people had to consider

The first computing machine.
In the late 19 century Herman Hollerith in America, invented the tabulating machine. They used punch cards for storing numerical information.

The first computer —
universal machine for the vacuum tubes constructed in the United States in 1945.

The first computer in our country
In our country the first computer was created in 1951. It was called MESM — a small electronic accounting machine.
Designer MESM was
Sergey Alekseyevich Lebedev

Computing equipment can be divided into generation

Second generation

Third generation
They were called integrated circuits (IC)

Fourth generation
A microprocessor is a miniature brain, working on the program laid down in his memory.

Fifth generation
This machines of the near future. Their main quality should be a high intellectual level.