It's been 136 years since Thomas Edison invented the phonograph, and since then, our means of listening to music has changed considerably. Take a look at some of the many technologies we've used to hear our favorite songs: 
In 1877 Thomas Edison invented the phonograph, the first device that could reproduce recorded sound. It worked by tracing a stylus over a rotating cylinder. Edison tested it by speaking the phrase, "Mary had a little lamb," into the machine -- perhaps the first words ever recorded. 
Edison phonograph records were cylindrical. The gramophone record disc was invented by Emile Berliner in the late 1880s and soon surpassed Edison cylinders as the preferred recording technology ... not that it was easy to take on the road. 
Wireless technology, pioneered by such figures as Nikola Tesla and Guglielmo Marconi, was first used for telegraph messages. Eventually, it was used to transmit voice, news, sports and music. People used crystal sets -- basic radio receivers -- to tune in broadcasters, though headphones were required because the signal was unamplified. 
By the 1930s, radio was flourishing. Families gathered around to listen to the latest entertainment and news. 
The long-playing record (LP) was invented by Peter Goldmark in 1948. By playing at 33 1/3 rpm, it could fit more than 20 minutes on a side instead of the five minutes of 78-rpm discs. 
The jukebox has its roots in the 19th century, but really caught on in the 1940s. One was a major prop on the 1950s-set TV show "Happy Days." 
The transistor radio was introduced in the mid-'50s and was the iPod of its time: small, portable and full of music (usually from AM radio stations). 
The transistor radio generally had one small speaker and tinny sound. At the other extreme was the hi-fi, the high-fidelity stereo system, which offered rich sound from several components. Major record collector Elton John listens to a Sony hi-fi in the 1970s. 
In the '60s, '70s and '80s, stereo component equipment became affordable to the mass consumer. Systems generally consisted of a receiver, a turntable, some kind of tape player and speakers. 
The cassette was introduced in 1963; the 8-track tape in 1964. Both were portable ways of listening to music. Here, actor Jimmie Walker (as his "Good Times" character J.J.) poses with several 8-track and cassette players. 
The portable stereo cassette player -- marketed by Sony under the name "Walkman" -- was introduced in the late '70s and had become a go-to accessory by the 1980s. 
Not every listening technology made the mainstream. A portable musical stereo bra, designed by Geoffrey Weston for Philip Garner's spoof "Better Living Catalogue," never busted through. 
Music videos and their primary channel, MTV, became a huge outlet for music in the 1980s. One audiophile believes they helped kill off interest in great-sounding audio. 
The boombox, a portable radio-cassette player with its own speakers, was a popular item in the 1980s and '90s -- especially with hip-hop stars such as Will Smith. 
The compact disc (CD) promised high-quality digital sound in a portable optical format. Sales peaked in the late '90s and early 2000s, though it's still prominent today. The disc became a collaboration between Sony and Philips; here, Philips' Joop Sinjou shows his company's version on March 9, 1979. 
Though MP3 players started appearing in the late '90s, the Apple iPod -- introduced in October 2001 -- became the ubiquitous device for digital music files. The players, originally available only in white, were seen everywhere. 
Thanks to the popularity of iPods and iPhones, wireless speakers -- such as the Beats Pill -- have become popular. Many have clever designs, are available in bright colors and produce surprisingly clean, room-filling sound. 
And if don't have your own music? Just click on a streaming service such as Spotify and let your friends -- or some algorithms -- do the job. 
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- For decades, the component stereo system was the way to listen to audio
- Now it's all about computers and MP3 devices
- Has quality been lost? Maybe -- but convenience hasn't
- Today's young music fan: "All you need is a good pair of headphones and an iPod"
(CNN) -- For many years, it was a rite of fall.
You moved into your dorm room or new apartment. You started unpacking the car. And the first thing you set up in your new place was the stereo system: receiver, turntable or CD player, tape deck and speakers.
The wires could get tangled, and sometimes you had to make shelving out of a stack of milk crates. But only when the music was playing on those handpicked CDs, mix tapes or (geezer alert!) vinyl records did you move in the rest of your stuff.
Daniel Rubio wouldn't know.
To the 23-year-old, new dorm rooms and new apartments have meant computers, iTunes, Pandora and miniature speakers.
"All I had to bring was my laptop. That's pretty much what everyone had," says Rubio, who attended Emory University in Atlanta and now works for a local marketing and communications firm. "It was actually pretty good sound. It would get the job done."
"Get the job done"? That sounds like the white flag for an era that used to be measured in woofers and tweeters, watts per channel and the size of your record collection.
Related: Old LPs get second life
Indeed, the days of the old-fashioned component stereo system are pretty much over, says Alan Penchansky, an audiophile and former columnist for the music trade publication Billboard.
"What's happened in the marketplace, the midmarket for audio has completely been obliterated," he says. "You have this high-end market that's getting smaller all the time, and then you've got the convenience market, which has taken over -- the MP3s, the Bluetooth devices, playing on laptops."
He wishes more people knew what they were missing. At its best, he says, audio reproduction has "a religious aspect."
"There's a primacy to audio," he says. "It's a form of magic."
Wires and jacks
Of course, new technology changes things all the time. When was the last time you bought a roll of film for your camera?
Still, for a long time -- and for a certain, often youthful, audience -- the stereo system was a point of pride.
Greg Milner, the author of the audio recording history "Perfecting Sound Forever," remembers the process. There were components. There were boxes of tapes and CDs. There might even be some vinyl.
It could be a pain, no question. The equipment was heavy. There were all those wires, plugs and jacks -- Line In, Line Out, Aux, Phono, CD, keeping track of the positive and negative strands of speaker wire. It was an effort just to break down and set up the stuff, never mind moving it.
Milner, for example, grew up in Hawaii, and when he went away to school in Minnesota, he had to figure out what he was going to do with his system.
"I remember agonizing, what do I do? I can't take my stereo," he recalls. "There was this thing that, looking back on it, took up a ridiculous amount of psychic energy."
Audiophiles vs. AM radio
However, he observes that the history of audio technology has often been one of convenience.
Even in the '50s and '60s, when stereo sound first became widespread, the audiophiles had their hi-fis -- and the younger generation listened to tinny AM radios and cheap phonographs.
Indeed, music styles had a lot to do with music consumption, he points out. Audiophiles listened to classical and jazz, music from clubs and concert halls. On a good system, you could hear every pluck of a violin pizzicato, every inflection of a jazz singer's vocal, recreated in your living room.
The kids, on the other hand, listened to cruder rock 'n' roll.
"The seeds of the decline of what it meant to own a stereo were planted way back then, because the original audiophiles were people who were baby boomers' fathers and mothers," he says. "As rock 'n' roll starts to become more of a thing, a lot of that stuff is produced so it's meant to be heard on AM radios."
A Phil Spector Wall of Sound production -- in glorious mono! -- would probably have driven a hi-fi enthusiast up a wall, says Milner.
The mass market moves on
In the '70s and '80s, the twain did meet, for a time. Rock and pop music production techniques improved. At the same time, grown-up baby boomers, now working adults, invested in better audio equipment, all the better to listen to Steely Dan's "Aja."
There were whole mass-market stores devoted to audio gear -- Sound Trek, Hi-Fi Buys, Silo -- and no issue of Rolling Stone was complete without several ads for turntables, cassette decks and equalizers.
But technology marched on, and so did change. Some was for the sake of convenience: Cassettes had more hiss and less range than LPs, but were more portable -- especially when listening on your handy Walkman or boombox.
However, we also started focusing more on visuals. Penchansky traces the decline of the stereo system to the early '80s rise of the music video, which brought visuals to the fore. Suddenly, the concert hall in your living room -- or the audio imaging in your head -- was gone, replaced by surrealist pictures overwhelming the television's tiny speaker.
That branch of consumption has helped lead to the home theater.
Penchansky has nothing against HDTVs and 7.1 systems, but believes that, for the most part, it's a "sonic compromise." With a pure audio system, "There was no way that television, even today, simulates the realism of visual experience the way (good) audio can simulate an audio experience."
Sure, technology has adjusted.
New materials and processing technology have improved the sound of small and inexpensive devices, says Patrick Lavelle, president and CEO of the consumer electronics giant VOXX International, which manufactures such brands as Klipsch, Acoustic Research and Advent.
Headphones and an iPod
And there's still a consumer market for good audio, adds Geir Skaaden, an executive at the high-definition audio company DTS. The top-selling products in Apple Stores, after Apple's own devices, are headphones, he says. (DTS recently introduced technology for an immersive system called Headphone:X, intended for mobile devices.)
Still, convenience still rules. Which means it's out with the component stereo system and in with the computer.
That suits Rubio, the Emory graduate, fine. He grew up in a house with a component system but doesn't believe he's missing anything.
"All you need is a good pair of headphones and an iPod and that's pretty much it," he says.
Milner, the author, can't question his decision.
"Now, why even bother?" he asks. "If you can take your entire music collection and more in something that fits in your pocket, why would you not do that?"
