- published: 23 Mar 2010
- views: 62848
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access. DSL service can be delivered simultaneously with wired telephone service on the same telephone line. This is possible because DSL uses higher frequency bands for data. On the customer premises, a DSL filter on each non-DSL outlet blocks any high-frequency interference to enable simultaneous use of the voice and DSL services.
The bit rate of consumer DSL services typically ranges from 256 kbit/s to over 100 Mbit/s in the direction to the customer (downstream), depending on DSL technology, line conditions, and service-level implementation. Bit rates of 1 Gbit/s have been reached in trials, but most homes are likely to be limited to 500-800 Mbit/s. In ADSL, the data throughput in the upstream direction (the direction to the service provider) is lower, hence the designation of asymmetric service. In symmetric digital subscriber line (SDSL) services, the downstream and upstream data rates are equal. Researchers at Bell Labs have reached speeds of 10 Gbit/s, while delivering 1 Gbit/s symmetrical broadband access services using traditional copper telephone lines. These higher speeds are lab results, however. A 2012 survey found that "DSL continues to be the dominant technology for broadband access" with 364.1 million subscribers worldwide.
Ev'rybody wants somethin' for nothin'.
Yeah, they all want it fo free.
These days, now nothin' cost ya somethin'.
No tellin' what it could be.
Never happen if ya never try.
All the nights awake and the tears we've cried
Could fill the seven seas.
So, c'mon, ev'rybody, c'mon, ev'rybody,
We got to give ourselves, got to give ourselves a hand.
And if we feel it's all a mess, yeah, yeah,
Why don't we try a little, try a little lve 'n' tenderness.
If we got more than comes around, yeah, yeah,
Why don't we care a little, share a little.
Sure to come back around. Guitar!
Lately everybody's thinkin'
Me, my, only I thinkin' for me.
Here lately, everbody's talkin', baby.
But we all know that talk is cheap.
We can make it happen if we make a try.
All the nights awake and the tears we've cried
Could fill the seven seas.
So, c'mon, ev'rybody, c'mon, ev'rybody,
We gotta give ourselves, gotta give ourselves a hand, yeah.
And before it falls apart, yeah, yeah,
Why don't we live a little, give a little, straight from the heart.
And if this old world gets ya down, yeah, yeah,
You gotta pick it up and toss it in the air, kick it all around. Kick it!
I don't even know how I wanna say, but I know what I wanna say.
Do you know where I'm comin' from?
As the bass plays on, and still the guitars strum,
While the Colonel beats the drum, so the whole band plays along,
And the whole world sings a song, yeah,
Yeah, yeah, yeah, yeah, yeah, yeah, yeah.
And before it falls apart, yeah, yeah,
Live a little, give a little, straight from the heart.
If this whole world gets ya down, yeah, yeah,
You gotta pick it up and toss it in the air. Kick it all around.
And if you don't like the way the music plays, the way it sounds,
Hop back in the kitchen, change it all around.
Stir it up, baby. Stir it up, baby, stir it up,
Stir it up, stir it up, stir it up,
Stir it up now, stir it up, baby.
Stir it up, baby, stir it up, baby, stir it up,
Stir it up, stir it up, stir it up, stir it up,
Stir it up now, stir it up, baby. And you know:
Nobody gets somethin' for nothin'.
Nobody's gettin' it for free. [Spoken:] But you know
These days now nothin' costs ya somethin', baby.
And-a there ain't no tellin what it could be.
So stir it up, baby, stir it up, baby.
Stir it up, baby, stir it up, baby.
Stir, stir it up, baby, stir it up, baby.