Senin, 25 Januari 2010

Computer Part

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. Equipment inputs and outputs on this port is connected through.

4. CPU (Central Processing Unit)
CPU is the brain-computer systems, and has two parts operational functions, namely: ALU (Arithmetical Logical Unit) as a data processing center, and the CU (Control Unit) as a controller computer work.

5. Memory
Memory is divided into two parts namely the internal memory and external memory. Internal memory of RAM (Random Access Memory) which is used to store programs that we were for a while, and ROM (Read Only Memory) memory is the danger can be read and useful as a provider of information on when the computer first boots.

6. Data Bus
Lines are the data transfer between modules in the computer system. Because at a certain time each channel can only carry 1 bit of data, the number of channels determines the number of bits that can be transferred at one time. Data bus width determines the overall system performance. Bidirectional nature, meaning the CPU can read and menirma data through the data bus. Data bus usually consists of 8, 16, 32, or 64 parallel lines.

7. Address Bus
Used to indicate the location of the source or destination of data transfer process. At this point, the CPU will send the memory address to be written or bus dibaca.Address usually consist of 16, 20, 24, or 32 parallel lines.

8. Control Bus
Control Bus is used to control the use and access to the Data Bus and Address Bus. 4 samapai consists of 10 parallel lines.

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