Basic Knowledge Of The Computer Part 2

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Personal Computer

A personal computer (PC), because a lot of people are not familiar with other computers in the form of computer for known generally as strangers in term. More specific and accurate term to describe the term exclusively for euroyi saaja wear only certain people.

Memory  

In this system, each piece of information, including the memory (for example, the "cell" and "pigeon holes", etc.) in the numbered sequence of bytes. Command that instructs the computer to what to do. Cell containing the necessary data can be used to execute the command of the computer. 1 in each slot is included in the command, and the data, what may be good now.
Memory, including various types of information, such as binary. In the form of binary digits and undocumented in order to turn it to the number of commands (encoding) will be resolved. For example, the letter F, as follows, using one of the problem-solving methods to decimal 70 (or binary digits) to save. More complex commands can be used to store images, sound, video, and a variety of information. A byte of information that is stored in a single catalog.
Memory typically times, millions can be re-written blackboard and chalk, can write and delete without memory can be removed not like notebook and pen can be represented.
Technology that changes the size of each cell and the number of cells from one computer to memory changes, good relays, mercury (Springs) acoustic pulses were full tube of excellent silicon chip transistors millions individual transistors of integrated circuits formed in the matrix of the permanent magnet

CPU

The central processing unit or CPU, responsible for implementing treatment recommendations, and discharging the routing information calculated by the computer system. The processing unit may be in communication input and output devices to perform the criteria storan or related units.

In the original von Neumann architecture, he describes the arithmetic logic unit and the control unit. Often referred to as a CPU (central processing unit), - the unit is located (IC Integrated Circuit), either in a single integrated circuit modern computer.

The device performs the basic implementation of the execution of such operations (addition, subtraction, etc.), the implementation of an arithmetic logic unit (ALU), (AND, OR, NOT), or logic unit, the arithmetic and logic execution comparison (For example, for example, two slots equal content). Units by the real "work".

ALU storage and re-ordering orders, now recognize that the control unit on the computer, (from memory), I found that the memory location to return results of the information you need to run the command. Time of such a thing, the control device (usually excluding Doyakururu was told that the computer is located in a different location following command slot is located below) to move to the following command:

Input and results

I / O of the computer to get the information to the outside world, their work may be physical (a copy of) physical form (hard copy). A variety of I / O devices, keyboards, these unique cameras (network cameras, printers, scanners, disk drive monitoring.

All common input device information owned by encoding (converting), and they are further processed by the various types of data of the digital computer system. The decoded information in the data from the user's computer, to be understood that the tool output. In this regard, the digitized computer system is an example of a data processing system.

Input dan results

I / O, a computer can get information from the outside world, his work, it's physical (or soft copy) physical form (or hard copy), you can. Familiar with cameras (network cameras, printers, scanners, and other, more unusual, monitor, hard drive, I / O devices, a variety of keyboard

Has a variety of input devices, it is no conversion (encoding) of the digital computer system that processes information from all of the common data. The tool's output data, computer understandable information about the users about the decoding of the item. Digital computer systems, data processing systems, for example in this regard.

Instructions

The above command, there is no command like human language. Computer has successfully developed a simple command in limited quantities. The copied content in the 123 cells, a cell 666 ", the contents of the copy of the 042 battery cells 456, the general procedure is the" Most computer ", the result in the cell 013" and understand the next step, If the cell 345, the contents of the room 999 is "0.

For example, as the sun in the capital guidelines 001 digital code "Copy" is displayed on your computer. This is a special group of commands specific computer systems are called computer-supported language. In fact, it will create a command computer machine language directly, they generally use the "high-level" programming language, it is automatically translated into the machine language computer program (special compiler or interpreter). On the other hand, by the (high-level language) Computer until now, several programming languages??, computer languages ??work closely with the (low-level language) compilation of these languages??, such as Prolog, the actual implementation details, from the basis of an abstract principle

Architecture

ALU and control unit the central processing unit on a single modern computer IC, or CPU is called. Under normal circumstances, the computer's memory is near the top of a few small IC is placed on the CPU. System (for example, in order to provide electricity) or I/O takes up most of the space on a computer that is connected to the tool for
A large part of the computer is one of the main things is different from the above model, they have a certain CPU control device to operate at the same time, he said. More importantly, on some computers, mainly for the purpose of research and scientific and technical calculations, unlike the model significantly, but they found little commercial use.
The computer is a very simple principle. In the command or the data in the computer's memory. The command saves the results achieved and the following commands are complementary. Computer, repeat this process until the power of the.

Program

The data in the table, the computer program is possible by the list of commands executed by a computer will be. Under normal circumstances, the millions of most of the computer program and the command, the most of the command will be executed many times, and the second command of the modern personal computer (2003) can be one hundred million 2-3. The ability of a computer to execute complex commands amazing ability. But smart programmers. "Simple command millions of "good programmer command, so that other programmers to develop a set of commands to perform common tasks (for example, to draw an array of points on the screen)". Most of today's computer seems to execute multiple programs at once. This is usually referred to as a multi-tasking. In fact, CPU can do something, and then over a period of time, CPU, and convert the order of the program of the second program. Small distance of time, commonly referred to as a time slice (time slice). The plan program between the CPU time and double folding imagine. Lightning series of still frames movie mode, which is similar. The operating system is a program that generally hours a week mainly

The Operating System

The operating system is some sort of combination of a useful piece of code. When some kind of computer code can be used simultaneously by many different types of computer programs, after all these years, programmers were finally moved it into the operating system.
Operating system, determine which programs are run, when, and where the tools (such as memory or i/o) they use. The operating system also provides services to other programs, such as code (driver) that allows programmers to write programs for a machine without needing to know the details of all electronic devices connected