Structure and Function Computer

Computer structure is defined as the ways of each of the components are interrelated. Computer function is defined as the operation of each component as part of the structure. The function of each component in the structure above is as follows:

1. Input Device (Input Tool)
Is a computer hardware that serves as a tool to enter data or commands into the computer
2. Output Device (Tool Output)
Is a computer hardware whose function is to display the output as a result of data processing. Output can be either hard-copy (on paper), soft-copy (to monitor), or a sound.
3. I / O Ports
This section is used to receive or send data out of the system. Input and output equipment above connected through this port.
4. CPU (Central Processing Unit)
The CPU is the brain of computer systems, and operational functions have two parts, namely: ALU (Arithmetical Logical Unit) as a data processing center, and the CU (Control Unit) as a controller of the computer work.
5. Memory
Memory is divided into two parts, namely the internal memory and external memory. The internal memory of the RAM (Random Access Memory) which serves to store the programs that we though for a while, and ROM (Read Only Memory) is memory that danger can be read and useful as a provider of information on when the computer is first turned on.
6. Data Bus
Is the data transfer paths between modules in the computer system. Because at a certain time each channel can only carry one bit of data, then the number of channels determines the number of bits that can be transferred at one time. Data bus width determines the overall system performance. Its bidirectional, meaning that the CPU can read and menirma this data through a data bus. The data bus is usually composed of 8, 16, 32, or 64 parallel lines.
7. Bus
Used to indicate the location of the source or destination on the data transfer process. In this pathway, the CPU will send the memory address to be written or read. Address bus typically consists of 16, 20, 24, or 32 parallel lines.
8. Control Bus
Control Bus is used to control the use of and access to the Data Bus and Address Bus. Consisting of 4 to 10 parallel lines.

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