WEEK 2

           Hardware basics 2

Hello everyone……Nice to see you again

In this week’s lesson, I would start with memorable history of computer and also its categories along with system unit. I think it is quite boring content for somebody. However, I will show you in interesting way as I have been taught by my easy-going lecturer.
          Let’s start now

There are six eras. Firstly, early computer is known as Abacus. Then, the first generation is Vacuum Tube. After that, the second generation is introduced Transistors. For the third generation is IC which stands for Integrated Circuits. Later, VLSI and ULSI have been used till now. Lastly, Artificial Intelligence has been considered with full attention from today to tomorrow (future).

In the instance of its categories, there are six categories. They are embedded computer (GPS), mobile computer, midrange server, mainframe and supercomputer.

Once I have mentioned about system unit, here it is. System unit is a case that contains electric components and storage devices. For the system unit component, we know that there are four components which are processor, memory module, expansion cards and ports & connectors.

Nevertheless, I want to touch on a point that is central processing unit or CPU. It is a part of system unit that has an important role in computer, because it acts as the brain of any computer system. Here is the architecture of CPU.

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The clock is ringing!!!!!!!!!

Now we are at the end. Let me give you an idea what I have learned from the history. Actually, it is not necessary to know about history, but we should be aware how fast we have developed ourselves when we compare with history. If we develop as much as time is running, then we are suffering good conditions that can support us to live happily in this world.

So hope to see you again………….thanks for your giving time.