Lesson 2 - Connectivity

Lesson 2 - Connectivity

1. A computer can be connected from methods such as; CAT cables, Wi-Fi, Fibre-Optic Cables, and Coaxial Cables

2. Fibre-Optic Cables has a very high transmission speed but they are quite fragile as they are mostly made of glass.

3. Coaxial Cables have a high bandwidth but have high installation costs.

4. CAT Cables are very cheap to install but can be interfered from other electrostatic devices quite easily

5. Wi-Fi is great for connecting many people and doesn't need additional cable for every person it connects to. However, it can be easy to breach the security of the Wi-Fi, meaning the users are at risk of being hacked.

6. Bandwidth - the amount of data that can be carried at a time

7. To calculate download speed you would divide the amount of bits you are downloading by you connection speed and the answer Is the amount of seconds it takes to download. For example, a 1 Megabyte file on an 8Mbps connection would take 1 second to download as 8,000,000 bits divided by 8,000,000 bits = 1.

8. Buffering is when the bandwidth is too small and so you will have to wait while the data is being transferred