Here is a little discussed about the function of some hardware and common components that we use: Keyboard: as a place to enter (typed) data, can be also to give orders. Mouse: as a pointing device / move the pointer on screen and to give orders. Scanner: as a tool to enter data in the form image / photo. Monitor: also called computer screen, serves to show information that can be seen. Printer: used to print the data / information on paper. Speaker: work out the information in the form of sound. Processor: as the central data processor and controller work other devices. Mainboard: as a framework for the computer where the processor machines and other components installed. Diskette Drive: also called floppy drives, namely the place to enter floppy disks (diskettes). Function to read and write data on diskettes. CD Drive: a CD insert, function to read and / or write data on CD / VCD. Hard Drive: a storage area for data. Harddisk be in the casing (body) of computers and rarely moved move (also called fixed disk). Generally all programs and data stored in the hard disk. Memory (RAM): is a temporary data storage. RAM stands for Random Access Memory, which memory that can be accessed randomly by the processor. VGA Card: is a component that serves display picture / display on the monitor. VGA stands for Video Graphics Array. Sound Card: is the functional components that process data a voice that will be displayed on the speaker. LAN Card: is a component that would link computer with other computers. LAN Card not always exist on the computer, and installed if necessary only. LAN stands for Local Area Network. Modem: it is a necessary component if we want connection to the internet, or to send data through the telephone network. Modem is not always there on the computer, and installed if necessary. Stabilizer: function to stabilize the electric current that flows that enter into the computer's power supply is not too up and down which can cause damage electronic equipment and data. UPS: working to prevent the computer off when unexpected electrical outages. In time power outage, the UPS automatically provides electrical power for computers in a certain time. UPS stands for Uninteruptable Power Supply.
