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.

The Affordable, Transportable Cellular Telephone

"Finding a phone in a car isn't that unusual anymore -- except when it leaves the car for greener pastures, the high seas or a leisurely lunch."

In 1990, the Radio Shack CT-201 retailed for $799 with a 90-day minimum new activation through an authorized carrier. A $199.95 portable adapter kit included a shoulder strap, antenna and DC power adapter/charger. For maximum pretentiousness, an optional $39.95 kit sounded your car's horn to alert you to incoming calls. 

1990: Radio Shack Cell Phones [YouTube]

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