Necessity, the mother of invention
Believe it or not, the Print Screen feature as we know it doesn't trace its roots to the dawn of PC time. No, back in the day, if you wanted an image of what was appearing on your computer screen, you had to photograph it. With a camera.
Enter the VideoSlide 35, a device described by PCWorld as "a gourmet gadget for computer and photographic connoisseurs." It's exactly what it looks like: A contraption designed to ease the pain, and eliminate the guesswork, of photographing CRT monitors.
And, no, the VideoSlide 35 wasn't covered in a standalone review. Its write-up was actually a closing sidebar in a sweeping feature story on "taking distortion-free photos of the PC screen."