Why was dial up slower?

why was dial up slower?

why is older technology less adequate?

why are black people worse than white people?

why are anime girls better than 3DPD women?

why is there so much samefag in this thread?

why is linux still a piece of shit?

why have we not blown up the US embassy in Tashkent, Uzbekistan?

The modem and rj63(64?) Rj were lower bandwidth. Dsl solves some problems, but phone landlines are limited in bandwidth.

...

why were they lower bandwidth? what medium is the data flowing through and how does that impact its maximum throughput? most data today is sent coaxial cables, which is basically just a resonating wire. what determines its speed cap?

Modems use audio to transmit data. The limits are due to the minimum length of tones and pauses that can be reliably transmitted and detected. Also there are limitations, especially on modern phone networks, where only a small portion of the audio spectrum gets transmitted.

It's way more technical than that, but read about how a carrier signal works and how data is transmitted via modems.

I work for a large cable company and our hardware runs on basically 5MHz to 1GHz frequencies. Headend is a very large expensive server rank basically, fiber line out from there to the node, then RG6 or RG11 coax out from there to each home/business.

Not throwing this out to correct, just to add

Sorry I should have specified dialup modems

>1997
>56k over phone line
>2017
>100MBit over the same wire

rl makes u thing

relevant

Nice.

because the phone line used for dial up was also the phone system that people put near their heads up to their ears.

they weren't allowed to send high frequency signals down those same lines because you would make people's ears bleed. that's why they ran an entirely parallel line to the house, a second line, the digital subscriber line, for the use of sending high frequency digital signals. then the only limitation was the throughput of copper.

>the only limitation was the throughput of copper.
to avoid confusion, the use of "copper" here doesn't mean copper in general, but rather POTS (plain old telephone service)
many other network types have a layer 1 that uses copper as a physical transmission medium, which are mostly faster than what POTS can handle (such as the common cat5/6 ethernet cable, or coaxial cable)

Maximum frequency range and transmit power was capped for safety reasons. If you're communicating with audio signals they have to remain within those bounds.

DSL normally uses the same wire POTS does, rather than a second one. It just transmits digital signals across as much of the spectrum as the copper can carry, except the small stretch used for voice.
You will want to install those filters the telco provides you with on the jacks for your telephones to avoid discomfort, though.

>DSL normally uses the same wire POTS does
yes, in addition to the relatively poor quality of POTS lines, dialup was also limited by logical restrictions, namely being restricted to using only the same frequency range as a regular voice call

let's get this out onto a tray

By second line he's referring to isdn, which almost nobody had. Normal 1200 to 56k
Modems were used on your regular phone line, which really fucking sucked if your parents forbid you from disabling call waiting with *67.

>same wire

>tfw it wasn't really "All-New"
>just a minor update
>shares 95% code with version 4.0