Sony

The Sony Walkman is celebrating its 40th anniversary. The now-famous gadget was introduced with little fanfare in the summer of 1979, but it didn't take long before the whole world fell in love with the diminutive device. The Sony Walkman TPS-L2, a 14-ounce (397 gram), blue-and-silver portable cassette player, had an impact that was monumental.

Sony had a long history with music players -- the company launched the "baby-corder," a reel-to-reel "magazine-type" player in 1957 -- but it never stopped its push for newer, better products. Then, in 1963, the Philips compact cassette became the worldwide standard for portable tape.

At first it was meant just for voice recording. It wasn't until the '70s that the cassette was finally suitable for high-quality music replay. Sony connected the dots better than the competition with the Walkman TPS-L2 "personal stereo," and it was a phenomenon.

While most analog cassette Walkman owners bought prerecorded tapes, others preferred making "mix tapes," not so different than today's playlists. I loved making mixes, but it was labor intensive work, consuming three, or four or even five hours to produce one 90 minute cassette. No matter, I made hundreds of mix tapes over the years.

Later on, I bought a Sony D-50 Discman portable CD player, the world's first portable CD player. Again the build quality was superb, but it skipped if you jogged or walked too quickly!

There were also Walkman MiniDisc players, and though MiniDisc was popular in Japan the format flopped in the US.

But all good things must come to an end. By the time Apple introduced the first generation iPod, in 2001, Sony was clinging to its proprietary but doomed ATRAC format and never again had a market leading portable music player.