Computers overview and introduction
A computer is a machine that enables and improves your day to day activities, it is a machine that stores, searches and is able to keep documents, files, notes, and data’s for a very long period of time. In Finland the computer has been integrated into our day to day activities, you can now search for a school, for jobs, for hotels and flights schedules and bookings, you can even shop over the internet. Check your local bus timetables, it is and has really gotten into our daily lives.
In this brochure the computer is simplified to you and its works are made easy for you to understand.
A normal day-to-day computer composes of a screen and a box like structure. Speakers and a small round object attached to the computer and a board like object with letters and numbers written on it is the shape of small square buttons, the screen is referred to as the monitor and the box like structure is referred to as the Cpu Tower, the small round like object is called the mouse. And the board like object is called a keyboard.
The monitor acts like a TV screen, it helps you to see what you are doing on a computer, or what the computer is performing or has performed on this screen you will be able to see what you have done and access the computer in a more in-depth way.
Image 1: Picture of a Monitor

The Cpu is the engine of the computer itself, for example if you have a car, the engine part is what makes the car functional, and it is the same thing with a computer. It is the Cpu that makes the whole computer function the computer is absolutely only an empty screen without the Cpu. In this Cpu are devices; small and compact that makes the whole computer works.
Image 2: Picture of a CPU Tower

The speakers are used if you want to listen to song and if you want to watch movies. it is the same system in a computer. It helps you to listen and hear what you may be watching or listening to in a computer
Image 3: Speakers

The mouse is another important item in the system of a computer; it is what you can touch and moves and give commands to the computer with, it is divided into 2 or 3 parts. The 1st part is called the right click and the 2nd part is called the left click. And the 3rd part is called a wheel; this is a device that you use to give commands to the computer. The wheel is a device that is normally present in modern systems and might not be available in the old systems. This is the device that helps you to move the page on your screen upwards and downwards.
Image 4: Mouse

The keyboard is used as a typing device to the computer. It is a component of the computer that helps you to give it commands in written form, in numbers and in codes. And this is a very important also when thought the computer you log onto the Internet, as you will have to Asses some sites with words and at times numbers.
Image 5: Keyboard

Image 6: Diagrammatic Description Of the Keyboard

Elements of a computer system-how do it all work together?
A PC is a general-purpose tool built around a microprocessor. It has lots of different parts -- memory, a hard disk, monitor, Cpu tower, keyboard, mouse, and many more, the all work together. it can be used as "General purpose" means that you can do many different things with a PC. You can use it to type documents, send e-mail, browse the Web and play games.
In this article, we will talk about PCs in the general sense and all the different parts that go into them. You will learn about the various components and how they work together in a basic operating session. You'll also find out what the future may hold for these machines.
There are two command inputs for a computer system one is the mouse and the other is the keyboard. When you move the mouse a small arrow like sign appears on everything that you place it on. This arrow means that you can command the computer to act thro that device that it the arrow appears on.
The 2nd input unit is the keyboard. This is a device by which you can use to type and configure some certain programs on the computer, thro is device you can name a file on the computer and you can type long notes and letters on the computer, you can also search and assess sites on the internet thro this device.
The pc tower is were there brain of a computer is, like the engine that is the workshop of the computer. It contains numerous small objects that functions all to make the computer serve us better. There is normally Cpu. Memories, and other highly technical devices that all combine to make the computer a better machine to serves our day-to-day needs
Images 7: These are some of the numerous components of the CPU Tower

When you put on your computer. You do that by normally pushing the biggest button on the Cpu tower. By doing that you turn the whole computer system on. The monitor automatically switches on, and the mouse begins to function normally some sounds can be heard as the system turns itself on. Some commands will begins to appear on the screen and normally it will automatically follow its commands and completely turn itself on. From now henceforth, if you right click or left click on anything that appears on the screen of the monitor you will be giving the computer command to do, and when you for instance use your Microsoft word program then you can type and the computer will indeed follows the commands that you type
From this time hence forth when you use your mouse by clicking any diagram that appears on the screen, you are sending commands to your system at the Cpu tower, then this is being interpreted and then it appears on your monitor, likewise when you are typing, when you press a key on the keyboard it immediately sends data’s to the cpu tower, which is the interpreted and it appears on the monitor,
Image 8; right clicking with your mouse

It takes micro minutes for all these to happen, that is why the speed is very remarkable and not noticed
All computers are very delicate machine; a simple drop to the fall or a few drops of liquid of any kind can ruin or totally spoil the whole system. This should really be noted and taken into consideration when using the computer as anything thing of this sort will or may completely damage the machine and all or some of its components.