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Printable elementary worksheet on computer history with six technological eras from vacuum tubes to artificial intelligence to arrange in order.
Worksheet

History of Computers: Then and Now

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This printable science worksheet teaches Grades 3–5 students about the evolution of computers through six technological generations. Students order key developments including vacuum tubes, transistors, integrated circuits, microprocessors, personal computers, and artificial intelligence. Useful for technology units, STEM history, or classwork on how modern devices developed over time.

Subject:
Science
Topic:
Computer Science
Grade Level:
3rd – 5th Grades
Updated April 2026

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