Few people have heard of it, yet many consider John Blankenbaker's KENBAK-1 to be the first commercial personal computer.

Koss introduced these headphones over 40 years ago, and they remain affordable favorites to this day.

35mm Slide Show In Your Pocket

Slide viewer banner
So your friends are wise to you - they won't come over to your house anymore in fear of a slideshow breaking out. You can't just keep those Kodachrome slides of your trip to the canyon and your gall bladder surgery to yourself. You're a natural showman! IF you forgot to bring your Minolta pocket sized 35mm slide projector, you can always whip out your Arrow-View pocket viewer.

With a heart made of two C batteries and a flashlight bulb, there's not a lot of tech going on here, but you've still got just about everything you need for a slide show - one slide at a time, of course. Just drop the slide in the slot and push down. The slide pushes a contact into place, and the rear light fires up. The bottom knob physically moves the magifier to adjust for any level of focus and/or myopia.

Of course these days practically any MP3 player can display a much more elaborate multimedia slideshow. This viewer hearkens back to somewhat more "monomedia" times. I still think this is a kicky little slide viewer - especially the mysterious marble-ized finish and the shape reminiscent of a camera. It's no smartphone powerhouse, but at least the 50's were trying.

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