During the previous lessons that we have learnt all about the internet.
We didn't just look at how the internet works but also what the computer is doing with the components to show us the things that shows up on the screen. Moreover, about the concepts of how we get the applications and softwares that we have.
As we are learning about the internet we first learnt about the 'Four Layer Model'. It explains thoroughly of how the computer works. The first layer is people because we are the people that is using the internet. The second layer is the network. The network includes the internet, the local network, domain name, IP address and ping.
In the third layer is the software which contains the operation system, BIOS and the applications. Lastly the is the Hardware. The hardware includes many components that make up the computer. It keeps it working.
There are variable things that keeps the PC hardware working. Like the wires, air vent, power supply, CPU (central processing unit), ram, hard disk drive and the mother board.
However, one of the very important thing on the hardware is the case. It keeps every together and makes it harder to over heat.
The wires connects things together and lets the PC function properly, the power supply provides the required power for us to turn on the laptop. As for the CPU, it is very important because it handles all the data and applications.
There is a very similar part called the hard disk drive (HDD), however the HDD only stores the data and softwares.
The mother board is another very important thing inside the hardware. Many wires and the CPU is attached to it. When you look at the mother board it looks like a small city, however it is similar because the data and information passes through the mother board, wires and many other components. Just like us traveling around but we are slower.
There is also another part that handles information, it is the ram however it also gives us a fast access to the internet. If you filled up all the spaces in the ram it will slow down unless you still have space to fit another ram. When you filled up the other slot and the also the spaces in the ram it may start deleting some of the information stored in it.
Lastly, the air vent. It is important that every computer has one so that it won't over heat easily as the other parts does its jobs. However, the air vent always captures many dust as it lets heat out. Sometimes when you hear your laptop creating a breathing sound it is cooling down the working components inside the case. Moreover, there is always a part where you can feel the heat of the components, it never melts that part of the case thanks to the air vent. If it were not there it may explode and hurt people.
Even though there are many different brands of PC they basically contain all of the above listed parts.
They might be put differently or designed differently but are highly similar.
This is what I have learnt in these few lessons based on software, hardware and firmware.
I personally don't have much interest in this subject or unit. However, it is getting quite interesting knowing what is going on when I am using my laptop and typing this piece of text. Or when you are opening this webpage to look at this post. Before this unit I never knew anything about this nor did I ever think about it. Now that I know I will remember and know why sometimes the internet is fast, slow and a brief idea why errors occur. Even though, I do not particularly like this unit I still think it is quite useful to learn these facts.
