The 50 greatest gadgets of the past 50 years
(PC World)
Updated: 2005-12-27 11:29

29. Sony Betamax (1975)

Few gadgets have had a bigger impact than the first stand-alone video cassette recorder. Shortly after the Betamax appeared, Sony was sued by the movie studios; in 1984 the U.S. Supreme Court decided in Sony's favor, finding that beneficial uses of the new technology (time-shifting TV programs) outweighed potential harms (video piracy). (The version pictured here is the SL-6300 from 1975, in a high-end wooden case.) The Betamax changed our lives and helped spawn the $20 billion video rental industry, but it couldn't compete with JVC's cheaper VHS devices and eventually disappeared. Those who love and honor all things Beta, however, have a place to gather. Photo courtesy of Sony Electronics.

30. Sanyo SCP-5300 (2002)

Sanyo was the first to bring a camera phone stateside, although it wasn't the first to introduce such a device to the world--that credit goes to Sharp, which released the J-SH04 in Japan in 2000. Sanyo's SCP-5300 took 640-by-480-resolution snapshots, and according to PC World's first look, the clamshell phone was easy to use. But the quality of the photos was mediocre, and the only ways to get images off the phone were to send it to another person's cell phone or e-mail address or to upload them to Sprint PCS's Web site (the handset was available exclusively to Sprint customers). But, hey, it's almost impossible to find a cell phone without a camera these days. That's saying something.

A robot that does housework? Sign me up! With more than 2 million users, the Roomba is considered by many to be the first commercially successful domestic robot. The 14-inch-wide vacuum cleaner may look like an oversize hockey puck, but its brilliant design lets it avoid obstacles while sucking up every speck of dirt--including those dust bunnies cowering under the couch. Photo courtesy of iRobot.

32. Microsoft Intellimouse Explorer (1999)

The first mainstream optical mouse earned its place on our list by eliminating one of computer technology's most pervasive annoyances: the accumulation of gunk inside a mechanical mouse. Optical mice actually existed long before Microsoft's groundbreaking product, but they were expensive and required special pads. The Intellimouse Explorer (and its simultaneously introduced siblings, the Intellimouse Optical and the Wheel Mouse Optical) brought gunk-free pointing devices to the great unwashed masses and their great unwashed desks (and laps, and armchairs, and many other places you'd never dream of using a mechanical mouse). Read our original review. Photo courtesy of Microsoft.

33. Franklin Rolodex Electronics REX PC Companion (1997)

The REX redefined the notion of portable. This credit-card-size device was powered by two watch batteries, measured just a quarter of an inch thick, and was designed to fit into a notebook's PC Card slot. Its design was simple--just a black-and-white, 160-by-98-resolution screen, and five navigational buttons to access such functions as calendar, contacts, and even memos. Although you couldn't enter data into the first version (about $179 with cradle), the REX proved a convenient portable companion. It was PC World's World Class Gadget for 1998. Photo by Kevin Candland.