System and the workings of the complete Computer
System and the workings of the complete Computer-initial concept creation of a computer is as a tool to calculate. The term computer is taken from the latin computare, meaning count, if in the English language to compute, the meaning is the same, namely to calculate.
In general the computer can be defined as electronic tool that works in coordination and integration based on the program, it can receive input which is processed data in the form of a system and issued in the form of information.
To better understand the concept of a computer you could note the organizational structure of the computer along with the following explanation:
1. Input Device (input devices)
Hardware is a computer that serves as a tool to enter data or commands into the computer2. Output Device (the tool Output)
Is computer hardware which serve to display the output as a result of processing the data. Output can be either hard-copy (paper), soft-copy (to monitor), or in the form of sound.3. I/o Ports
This section is used to receive or send data to external systems. Input and output equipment above connected via this port.4. CPU (Central Processing Unit)
The CPU is the brain of the computer system, and operational function has two parts: ALU (Arithmetical Logical Unit) as the central data processor, and CU (Control Unit) as the controller computer work.5. Memory
Memory is divided into two parts, namely the internal memory and external memory. Internal memory in the form of RAM (Random Access Memory) that serves to keep our sports programs for a while, and the ROM (Read Only Memory) that is a read-only memory and is useful as a provider of information when the computer is first lit.6. Data Bus
Is the transfer of data between modules in a computer system. Because at a certain time each channel can only take 1 bit of data, then the number of the channel to determine the number of bits that can be transferred at one time. This data bus width determines the performance of the system as a whole. Its nature is bidirectional, meaning that the CPU can read and menirma data via the data bus. Data bus typically consists of 8, 16, 32, or 64 lines parallel.7. The Address Bus
Used to indicate the location of the source or destination data transfer processes. On this line, the CPU will send the memory address will be written or read. The address bus is typically composed of 16, 20, 24, or 32 lines parallel.8. Control Bus
Control Bus is used to control the use of and access to the Data and Address buses. Consisting of 4 to 10 parallel lines.