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Period: to
First generation
The first generation computers use VACUUM TUBES : Vacuum tubes consists of a glass bulb and wire.
The wire is used to carry data from electronic signals.
This computers were large, expensive.
ENIAC was the first generation computer -
Period: to
Second generation
The second generation computers used transitors instead of vacuum tubes -
Period: to
Third generation
The third generation computers used INTEGRATED CIRCUIT: Is a small transistor but they have more capacity.
This computers are faster, cheaper and smaller. -
Period: to
Fourth generation
The fourth generation computers used microprocessors : consist of a small silicon chip on which thousands of circuits are placed.
This computers are smaller, portable and cheaper and they use less electricity and produce less heat -
Period: to
Fifth generation ( The future)
This generation use the ARTIFICIAL INTELLIGENT: Robots work on this technology