The light pen was developed in_________________?
Correct answer: A. 1950
- A. 1950
- B. 1942
- C. 1948
- D. 1956
Explanation
The light pen is commonly dated to about 1950 in basic computer-history references, when early interactive display systems were being developed. Its later association with the Whirlwind computer can lead to other approximate dates, but 1950 is the intended textbook answer.
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