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Vacuum Tubes:The first computers used vacuum tubes for circuitry and magnetic drums for Memory, and were often enormous, taking up entire rooms.
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Transitors: Second-generation computers moved from cryptic binary machine language to symbolic, or assembly languages, which allowed programmers to specify instructions in words.
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Integrated Circuits:
Computers through keyboards and monitors and interfaced with an operation system. -
Microprocess: As thousands of integrated circuits were built onto a single silicon chip.
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Artificial Intelligence:
Are still in development, though there are some applications, such as voice recognition that are being used today.