Structure and Function Computer

IT structure is defined as the average for each component

interdependent. The structure of a computer in a simple, can

shown in the diagram in figure a. Although the function

team is defined as the operation of each component

as part of the structure. Made for

component in the structure is as follows:

a) input devices (equipment input)

Is computer hardware that serves as a tool for

enter data or commands into the computer. Input Devices

is a tool used to get information out of the system,

and can be input or the input signal for maintenance. In the

signal information in the form of entries

computer systems, while the input of maintenance programs

used to process the data entered. Therefore,

other input devices used in the input data and

enter the program.

b) output device (output Tool)

Is a computer hardware used to show

output is the result of data processing. The output can be printed

(Book), soft-copy (on screen) or in the form of sound.

The output resulting from the transformation can be divided into

four forms, namely the text (letters, numbers, special symbols), image

(In the form of graphics or photos), sounds and other forms of

read by a machine (machine-readable form). Three first-class

is the output, which can be used directly by humans,

while the latter group generally used as input

The following process of the computer.

c) I / O ports

This section is used to receive or send data

system. Port I / O interface is also called (inter-

face) because the input and output equipment connected over

this port.

d) CPU (Central Processing Unit)

CPU is the brain of computer systems, and has a dual role

operations, namely: ALU (Arithmetic Logical Unit) that the central

data processing, and CU (Control Unit) as a working driver

equipment.

e) memory

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