1 янв 1960 г. - OHP, LCD Projectors (1960)
Описание:
A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen.☞ I've first encountered LCD projectors back in 2006 as it was and is still commonly used for powerpoint presentation and discussions during classes and orientations.
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Дата:
1 янв 1960 г.
Сейчас
~ 65 г назад