NEW YORK -- A cell phone was first used exactly 40 years ago.
On April 3, 1973, the first handheld portable telephone was demonstrated for reporters by Motorola executive Martin Cooper (pictured) on a New York City street corner.
Cooper contacted Joel S. Engel, of Bell Labs, using a Motorola device that looked like "a small, domesticated version of military walkie-talkies," according to an Associated Press report at the time.
The device weighed just under three pounds. The iPhone 5 weighs just under 4 ounces.