Origin of the word comes from the Latin System System and Greek Sistem.
Understanding the system is a unit consisting of components or elements
that are linked together to facilitate the flow of information,
materials or energy to achieve a goal. Or it can also be said that the
system definition is a set of elements / elements are interrelated and
influence each other in doing activities together to achieve a goal. So,
in general Definition System is the interrelated elements organized to
form a totality. Another understanding of the system is the arrangement
of the views, theories, principles and so on. Actually, there are a lot
of understanding of the system that has been put forward by experts,
some of which will be presented through this material.
Here are a few Understanding System According to the Experts:
Understanding System According to Davis, GB: physical system is a collection of elements that operate together to accomplish a goal.
Understanding System According Harijono Djojodihardjo: A system is a set of objects that includes a functional relationship between each object and the relationships between the characteristics of each object, and which as a whole is a functional unity.
According to Lani Sidhartha System Definition: The system is the set of parts that are interconnected together to achieve the same goals.
Understanding System According Murdick, RG: A system is a set of elements that make up the collection or procedure-procedure / treatment charts seeking an objective or goal together with the operation data and / or goods at a certain reference time to generate information and / or energy and / or goods.
Understanding System According to futz Gerald Jerry: The system is a network of procedures that are interconnected, gathered together to perform an activity or to accomplish a particular goal.
According to Indrajit Understanding System: suggested that the system implies the sets of components owned element association with each other.
According Jogianto Understanding System: suggested that the system is a collection of elements that interact to achieve a certain goal. It describes a system of events and real unity is a real object, such as places, objects, and people who really exist and occur.
A few descriptions of material about Understanding System According to experts, may be useful.
Computer systems
The computer system has three main components,
namely: CPU, Memory (primary & secondary), and equipment input /
output (I / O) such as printer, monitor, keyboard, mouse and modem. in
its function as input and output required I / O module. I / O module is
the interface equipment (interface) to the bus system or a central
switch and control one or more devices on the subject..
Module I / O is not just connecting Mosul, but a device that contains the logic in doing on the subject. functions and communication between the computer bus. There are several reasons why not directly connected to the computer bus that is:
Variations in the method of operation on the subject. devices, so it is not practical if the computer system must handle a wide variety of operating systems on the subject. on the subject. speed data transfer devices are generally slower than the rate of data transfer to the CPU, The format and length of the data on the device on the subject. often vary with the CPU, so it is necessary to harmonize its modules.
From some of the reasons above, I / O module has 2 main functions, namely:
As interface devices to the CPU and memory through the system bus.
As devices interface with other devices using the link on the subject. specific data.
Module I / O is not just connecting Mosul, but a device that contains the logic in doing on the subject. functions and communication between the computer bus. There are several reasons why not directly connected to the computer bus that is:
Variations in the method of operation on the subject. devices, so it is not practical if the computer system must handle a wide variety of operating systems on the subject. on the subject. speed data transfer devices are generally slower than the rate of data transfer to the CPU, The format and length of the data on the device on the subject. often vary with the CPU, so it is necessary to harmonize its modules.
From some of the reasons above, I / O module has 2 main functions, namely:
As interface devices to the CPU and memory through the system bus.
As devices interface with other devices using the link on the subject. specific data.
Computer Input and Output System
How I / O module can carry out their duties, the bridge CPU and memory with the outside world is the most important thing for us to know. Learn the core I / O system is a computer knows the function and structure of the work
Input units (input units)
The control unit (Control Unit)
And an arithmetic logic unit (Arithmetic & Logical Unit / ALU)
Unit memory / storage (Memory / Storage Unit)
Unit of output (Output Unit)
Control Unit and ALU form a separate unit called Central Processing Unit (CPU). The relationship between individual units that make up a computer system
Data received via the Input Device and sent to memory. The data stored in the memory and then processed in the ALU. The result of the process is stored back to memory before discharge through the Output Device. Control and coordination of the system is performed by the Control Unit. Briefly the working principle of a computer is Input - Process - Output, known by the acronym IPO.
Main functions of each unit will be described below:
Unit Input (Input Unit)
Serves to receive inputs (input) then read and forwarded to the Memory / storage. In this connection, the technical term input device (input devices) that the receiving device and reader input and the input media intermediary.
Control Unit (Control Unit)
Serves to carry out the task of supervision and control of the entire computer system. He serves as regulator of the household computer, decide the order of operations for the entire system, generate and control signals to control operations and adjust the flow of data from the address bus (address bus) and data bus (data bus), and to control and interpret signals -Signal control on the control bus (control bus) of the computer system. Understanding of the bus can be seen at the bottom of this page.
Logic and Arithmetic Unit (Arithmetical and Logical Unit)
Serves to carry out the work or the arithmetic and logic calculations such as adding, subtracting, multiplying, dividing and constituent. It is also carrying out work such as data transfer, pooling the data, the selection of data, comparing data, etc., so that the ALU is a core part of a computer system. On some computer systems and help to lighten the task of the ALU of the CPU is given an additional equipment called a co processor that particular calculation and execution of work processes in general be faster. Understanding the co processor can be seen at the bottom of this page.
Unit Memory / Storage (Memory / Storage unit)
Serves to accommodate the data / programs received from the input unit before it is processed by the CPU and also receive data after being processed by the CPU are then forwarded to the output unit. In a computer system, there are two kinds of memory, which is its name depending on whether the device can only be read or can read and write to it. Part of memory that can only be read without being able to write to him called ROM (Read Only Memory), while the portion of memory that can execute read and write is called RAM (Random Access Memory).
Unit Output (Output Unit)
Function to receive the data processing from the CPU via memory. As with the input units to the output units, also known as the term equipment output (output device) and output media (media output).
