Modems: 60 years of hooking up

A visual guide to the history of the modem, from the 1950s to today.

Page 6 of 13

The First Smartmodem 

modems img 6.jpg

In 1981, D.C. Hayes Associates introduced its seminal Hayes Stack Smartmodem. The 300-baud modem was the first to integrate its own command set--one that became an industry standard. Using a series of ASCII strings sent to the modem through its RS-232 serial port, users could initialize, autodial, answer, hang up, and more. Prior to this, most users had to dial a phone number manually then hook up the modem once they heard an answer on the other end.

Photos: Hayes Microcomputer Products, Dale Heatherington

| 1 2 3 4 5 6 7 8 9 10 11 12 13 Page 6
ITWorld DealPost: The best in tech deals and discounts.
Shop Tech Products at Amazon