What is baseband in networking?

I'm reading about this in my book so i came across this 10base-T term so I already know what the 10 means (10 Mbps) and the T means as well which means (twisted wire) but when it comes to understanding that word base aka short for Base band that throws me off that's when it gets difficult when i Google for base band that's when i run into confusion in words like frequency channel and medium so I tried to understand those words but they are very vague on what they are referring to in a base band context

Let's say 10Base-T is way 10 Mbps signals over twisted wire iusing the IEEE802.3 protocol. To understand the details you need to be an electronic engineer. Probably you aren't?

But this isn't really an answer to my question: please provide a few sentences using the term 'baseband'.

Frequency = number of waves passing by in a second
Medium has so many meanings, that all I can say is 'depends on the context'.

Kees

If that was true then why is it in my book then just saying because i plan to take the CompTIA A+ exam soon so i have to know about it the easiest way i can make you understand if i type out the paragraph from the book here it goes

"Some people love wired connections, and this D-Link device is considered 10/100/100BASE-T. That means that it can auto-negotiate connections at 10 Mbps, 100 Mbps, and 1000 Mbps (1 Gbps). The BASE applies to any speed, and it is short for Base-band meaning every computer on the network shares the same channel or frequency."

The thing that gets me confused is the frequency and the word channel but since you just mention frequency are you referring to waves of data? what are the waves for? And when i think of waves i think of analog signal.

So would you say that Base band is basically a transmission of packets of data like files like mp3 video documents etc.. running through a Ethernet cable? I'm just saying I'm reading this in a networking chapter

I see you made your question about frequency a separate post in http://forums.cnet.com/7723-7589_102-639963/what-is-frequency-in-base-band/?messageId=5671387#message5671387. So that seems a good place to answer that.

Baseband is the opposite of broadband, as told in http://www.webopedia.com/TERM/B/broadband.html.
I think this belongs to another of the 7 OSI-levels than transmitting packets of data, so - if that's true - it's not the same. Things from different OSI-levels are different things, of course. Your networking studies did include the OSI-model (Open Systems Interconnection), I assume.

Kees

for those type of devices.