The first electronic device among the options given is the Lamp. Specifically, the electric lamp (such as Thomas Edison's incandescent light bulb), which was developed in the late 19th century, marked a significant advancement in the use of electricity for practical applications.
Here’s a brief overview of the options:
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Vacuum Cleaner - While early versions of vacuum cleaners appeared in the late 19th century, they utilized mechanical means more than electronics.
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Cell Phone - The first cell phone was invented in the 1970s, much later than the electric lamp.
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Lamp - Electric lamps became widely available in the late 1800s.
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Butterfly - This is a living organism and not an electronic device.
Therefore, the correct answer is Lamp.
1 answer