Computer operating system

How are your efforts in training the computer operating
Preamble:
Creative is an institute for basic computer training and education. ‍So I will post of the articles  in a tutorial of basic computer operating. The operating system's of computer own efforts on this blog have tried to describe the art techniques. I believe this text will benefit to beginner and new users . If someone were to benefit from my writings, then I would be blessed and be successful in my attempt. So not to say other than that, I'm going back to the original post.  

NB: If you want to see this articles in Bengali :
please visit   creativecomputer2011.wordpress.com
                   http://tathya-projukti.blogspot.com


Computer operating system (Basic Course)
Introduction :
It is undeniable that the modern era of twenty-first century science, science is one of the most phenomenal discovery of the device in the computer. It's a plain calculator for ordinary human, which can be done automatically. But he is a skilled computer technicians with a sophisticated electronics device which receives data via the data processing instructions that it should be preserved, and that the solution to the problem.

What is Computer?
A varied job performance computer electronics device which receives data, through the data format and analyze the information that should be preserved on disk or in memory. And all necessary information can be found by using the desired results. Simple words, the computer is an electronics device. Computers (Compute) of the count. Therefore its considering that the calculations done by machines or computers in the device. Computer is automatic problem solving machine whose main purpose is data processing or processing information and which is represented electrically.
The origin of the word computer from the Latin word 'compute. Computer-ending sense of the counting machine. Although computers have been invented as a counting machine, but the machine is not just limited to the work. Computers to do research, as well as being used in the house.
Computer data in order or Computer information given command :
From the computer can not do anything. But if this is the correct command to the computer, its do this work. The command for this, we have to use the keyboard and mouse.
There are four things we see outside of a computer : For example, the
(1) Keyboard : The type of information we provide to the command of the keyboard.
(Ii) Mouse: We can provide the computer with the mouse.  
(3) CPU : The information provided in this part of the computer in the here এন্ড after is processed. English meaning of the - C = Central, P = Processing, U = Unit , processed at the same time in the office area of ​​the Central Processing Unit.
(4) monitor:  output is sent to the CPU, this part is just like a
Television.
Computer work processes can be divided into roughly two.
(1) Input Unit: Accept the area. This area is keyboard and mouse.
(Ii) Output Unit: This is shown in the results, This area is CPU and monitor.
Input devices are- The purpose of the communication is done with computer input devices. Conversion of any data or information in binary electronics signal (zero and one)  are sent to the CPU.  This is because the CPU (0, 1), except that it does not do anything.
Output devices are- Electronics signal input from existing human understandable image, alphabet, numbers, words and pictures Etc. into shape.
The importance of computer instructions;
Computer instruction is important. The Right to Information can only display the Right results. The results will be displayed in the wrong direction if it is wrong. The wrong direction can cause serious inconvenience.
What are the computer works ?
The four most important works in the computer. For example,
(1) It receives the input device and the number of words.
(Ii) the data or information databases through the process of instruction.
(3) The results are sent to the output device.
(4) According to the requirements of data stored in databases, data from the memory or memory resources are withdrawn.
Types of computers;
 
There are three types of computers in the world; For example:
(1) Digital Computer, (ii) analog computers, (3) hybrid computer.
Digital computers have been divided into 4 . For example:
(1) Super Computer, (ii) The main frame computer, (3) Mini-computer, (4) Micro computer.

Computers in different parts of the-
(1) CPU (b) Monitor (3) Keyboard (4) Mouse (5) Mouse pad (6) Printer (7) disk (8) Speaker (9) Modems (10) Scanner, etc..
Introduction of the Keyboard :
There are 84 or the 101 - 10 key in the keyboard. Based on the use of the - the whole board can be divided into five. they are-
(1) The Function keys.
(2) The Arrow keys.
(3) The
Alphabetic keys.
(4) The Numeric keys or logical keys.
(5) special keys.
What is the function key ?
The upper side of the keyboard from F1 to F12 keys are the function keys. What is the function of a particular work may be. For example, a program to help, or run any program, and this key is used for.
Arrow keys :
There are four different ways down the right side of the keyboard. Which is at the top of the board. Above the arrow keys or the arrow keys are provided. Which is easily the cursor to the right, left, top and bottom are removed. It seems that they edit the text in the drop-down not use.
What the alphabetic keys ?
That part of the keyboard English alphabet from A to Z  that's part are called the alphabetic section. 

Alphanumeric keys or the logical key:
The number to the right side of the keyboard is  0 to 9 its called the alphanumeric keys. And here +, -, *, /, are Arithmetic operators.  Also, <,>, = logical operators are the key board.


Any other special key from the keyboard that can perform one or more functions. What are the names of the short description of below-
Esc key: This key is used to cancel the order.
Tab key: screen, paragraphs, columns, numbers, paragraphs, etc. The starting point for making this key is used.
Caps Lock key: This key is used to type English text is lowercase and uppercase.

Shift key: The word or the beginning of the large and small to type or use the keys. For example: if you write to any noun by first notify you hold down the Shift key and write first alphabet. And then others alphabet write to hold up the Shift key will be required. The Bengali alphabet  writing  above and below this key is used to type text.  Not only that, the Shift key and  the function key press the different commands use to the computer. 
Ctrl key: This key command is pressed together with a special key. For user convenience, and left the keys in the keyboard are right.
Alt key: This is different for different programs in different directions and different commands can be used.
Enter key: The key to effective use of the computer to which it is directed. To create a new paragraph for writing a paper on this key is used. Its a command key.
Pause Break key: If you have any difficulty in reading speed is the key for you to read it.
Print Screen key: The screen is apparently all of which were printed before the key is to use.
Delete key: No sentence, or any writings or delete these keys are used.
Home key: This key is used to bring the cursor will appear in the text first.
End key: The key point is whether or not pressing the cursor will appear in the text or at the end of the page.
Page Up key: This key is used to move the cursor at the top.
Page Down key: Using the cursor keys are down at the bottom.
Insert key: The text of which is here and it's usually the right side, but the key here is that the previous letter writing over the top. When this is done at the end of it comes back to the previous state.
Back Space key: This key using the delete writing back or left.
Space Bar key : keyboard keys when typing in the key words in the sentence, they are no longer free to use this key.
Num Lock key: The key pressed is going to do is right side of keyboard.
The multimedia keyboards are extra four key.
Stand by Mood: The key is to turn the monitor will shut down the computer.
Mail key: The key is to start Outlook Express, and it can be sent through the mail. Must be running on the Internet.
Web key: This key is used to open the web browser. And can be used to browse the Internet.
Start Menu key: This key can be open the menu and the command.

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