On April 3, 1973, Motorola executives showed off a portable telephone. About 10 years later, consumers started buying them.

In 1982, the idea of carrying a phone with you sounded almost impossible. If you needed to make a call, you needed a payphone and the right change. But this archive clip shows a moment when that ...

To commemorate the 20th anniversary of the world’s first “smartphone,” the London Science Museum is placing the IBM Simon Personal Communicator on display in its new Information Age gallery, the first ...