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Kamis, 02 Juli 2015

HOW TO WORK COMPUTER

Memory
In this system, memory is a numbered sequence of bytes (such as "cell" or "pigeon holes"), each containing a small piece of information. This information may be a command to tell the computer what to do. Cell may contain data which is necessary for the computer to perform a command. Each slot may contain one, and what is now the data might then be perintah.Memori storing various forms of information as binary numbers. The information will not be solved in the form of binary (encoded) with a number of instructions that turn it into a number or sequence of numbers. For example: The letter F is stored as a decimal number 70 (or binary digits) using one of the methods of solving. More complex instructions could be used to store images, sound, video, and various kinds of information. The information can be stored in a single sell is called a byte.

Processing
Central Processing Unit or CPU (Central Processing Unit) role is to process the orders given by computer users, manage it with the data on the computer. Processing units or devices will also communicate with the input devices, output and storage to carry out instructions that are interrelated.

In the original von Neumann architecture, he describes an Arithmetic and Logic Unit, and a Control Unit. In modern computers, the second unit is located in a single integrated circuit (IC - Integrated Circuit), which is usually called a CPU (Central Processing Unit).
Arithmetic and Logic Unit, or Arithmetic Logic Unit (ALU), is a tool that performs basic implementation such as the implementation of arithmetic (addition, subtraction, and the like), the implementation of the logical (AND, OR, NOT), and the implementation of comparison (eg, compare the content as much as two slots for equality). At this unit done "working" real.
The control unit stores the current command is performed by a computer, instruct the ALU to carrying out and get back information (from memory) required to carry out the order, and move back the results to the appropriate memory location. This unit serves to control the reading of instructions a computer program.
Input and results
I / O allows a computer to get information from the outside world, and put his work there, it can be physical (hardcopy) or non-physical (softcopy). There are all sorts of tools I / O, from the familiar keyboard, monitor and disk drive, to the more unusual such as a webcam (web camera, printer, scanner, and so on.
Owned by all the usual input devices is that they encode (convert) information of a kind to the data that can be further processed by a digital computer system. Tool output, decode the data into information that can be understood by the computer user. In this sense, a digital computer system is an example of a data processing system.
Directive
Commands discussed above are not commands like human language. Computer only has a limited number of simple commands in well-defined. Common commands that are understood most computers are "copy the contents of cell 123, and a place in the cell clone 456", "add the contents of cell 666 to cell 042, and place result in cell 013", and "if the contents of cell 999 are 0, the next command you in cell 345 ".
Instructions are represented as numbers in a computer - code for "copying" may be 001, for example. A set of specific commands are supported by a particular computer is known as machine language. In practice, people usually do not write orders for computers directly in machine language but use programming language "high level" which was later translated into machine language automatically by special computer programs (interpreters and compilers). Some programming languages ​​closely related to machine language, such as assembler (low level language), on the other hand, languages ​​like Prolog are based on abstract principles far removed from the actual implementation details by machine (high level language).
3. Computer parts
Computer consists of 2 major parts of the software (software) and hardware (hardware).
Hardware

   Processor or CPU as the data processing unit
   RAM memory, which store data temporarily
   Hard drive, semi-permanent storage media
 Input devices, media used to enter data to be processed by the UPS, such as mouse, keyboard, and tablet
Output devices, the media used to display the output of CPU processing, such as monitors, speakers, plotters, projectors and printer
Software
Operating system
    Basic program on the computer that connects users with computer hardware. The operating system used is Linux, Windows, and Mac OS. Operating system tasks including (but not only) set the program execution on it, coordination of input, output, processing, memory, and software installation. 
The computer program
An application is installed in accordance with its operating system

Slot on the computer
ISA / PCI slot for additional input non-graphics card
AGP / PCIe card slot for additional graphics input
IDE / SCSI / SATA, slots for hard drives / ODD
USB media input slots for plug-and-play (plug and play, meaning that devices can be connected directly to a computer and can be used).

reference :
http://wirmanvalkinz.blogspot.com/2013/09/kumpulan-artikel-bahasa-inggris-tentang.html


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