The technologies involved in communication tend to be complex. You certainly don't need to understand them for your ICT course. However, there are aspects of digital communications that you needs to be aware of. These relate primarily to the two types of network and the ways of connecting to the internet.
Archaeans include inhabitants of some of the most extreme environments on the planet. Some live near rift vents in the deep sea at temperatures well over 100 degrees Centigrade. Others live in hot springs (such as the ones pictured above), or in extremely alkaline or acid waters.
The third type of archaebacteria is known as Thermophiles. 1  These types of archaebacteria t live in hot areas. 2  The water is a very hot/acidic sulfur spring. 3  It is anaerobic and thrives in the deep cracks of the ocean floor. 4  It is also a(n) Autotrophic producer.