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My name is Giani and I’m a computer science student with the specialization in cyber and
computer crime. I started this YouTube channel to share the knowledge that I gather with
the world. I’m Belgian so some my English may sound weird, but I guess you can get used
to it. So as you may have noticed at the beginning
of this video. We will start off with hardware. Don’t worry, other subjects will follow
shortly but this subject was the first one to cross my mind.
We will start off with the basic stuff. Informatics is the study of data processing
using a computer. Informatics is a contraction of the words “Information” and “mathematics”.
A lot of people say that a computer is a big calculator. Obviously this is not true.
A computer is a machine that can perform the following tasks:
Entering Data Storage of data
Processing the data into information Carrying out the information to the outside
world This means that a computer is more than a
calculator. It's actually a data processor. The processing of data into information is
done using an algorithm. An algorithm is a set of elementary and clearly defined tasks
that must be performed to solve a particular problem.
Before a computer can execute an algorithm, it must be written by a programmer in a programming
language. This is a special language that the computer can understand. Examples of programming
languages are C, C++, C#, Java, PHP, and more… An algorithm written in a programming language
is called a program. The tasks which make a program are called instructions.
Summarized, one can say that a computer is controlled by programs.
The generic term for all programs is called “software”. We also have the “Hardware”.
This is the generic term for all physical materials of the computer. Examples are: keyboard,
monitor, hard disk,… There is also firmware, which is software
that is integrated in the hardware (it makes use of ROM or flash memory).
One of the main hardware components of a computer is the chip. This is a small silicon chip
that contains a huge number of electronic circuit. Sometimes we speak of an integrated
circuit, short IC.
This was the first video. As you can see I try to keep each video short and simple. If
you have any questions ask it in the comment section below. Be sure to hit like and subscribe.