Kamis, 15 November 2012

some hardware that plays an important role on computer


In computer hardware requirements are useful as computer hardware is contained in some hardware components that play an important role for the computer1. RAMRAM stands for Random Access Memory is a computer hardware store that serves a variety of data and program instructions. Unlike magnetic tape or disk access data sequentially, the contents of RAM can be accessed randomly or does not refer to the location of the setting data. The data in RAM is temporary, in other words, the stored data will be lost when the computer is turned off or the power supply connected to it removed.RAM is also commonly referred to as main memory (main memory), primary memory (primary memory), internal memory (internal memory), main storage (primary storage), memory stick, or a stick of RAM. In fact, sometimes people just refer to it as the memory even though there are other types of memory installed in the computer.RAM is a type of internal memory that supports the processor speed in processing data and instructions. By using the additional RAM in the computer can produce a positive influence on the performance and the speed of the computer, although not actually determine the speed of RAM your computer.RAM memory modules are commonly traded capacity 128 MB, 256 MB, 512 MB, 1 GB, 2 GB, and 4 GB.
2. VGA CARDVGA stands for Video Graphics Accelerator, is used to process data and graphics displayed on the monitor screen, VGA also has a processor called a GPU (Graphics Processing Unit) and requires memory too.Nowadays in the market banayk motherboard using onboard VGA so you do not need to buy a VGA card again, this is very helpful to save costs.difference between VGA OB (On Board) with a separate VGA motherboard is as follows:
-VGA OB does not have its own memory so use some OB VGA RAM capacity on the computer to work, so that will make the performance of the RAM to be slow, but now some motherboard manufacturers have launched a motherboard with VGA OB and has its own memory.OB-VGA has a lower performance compared to the external VGA, but if your computer is not too used to playing the game, especially the latest 3D games that require VGA greater capacity then you can still menganalkan VGA OB you have, now many motherboards with VGA OB can match and even surpass the performance of the external VGAVGA OB-shaped with smaller external VGA, it aims to save manufacturing costs, smaller size are usually called the microATX (mATX).
3. MOTHERBOARDThe motherboard or mainboard is the main board where there are components and chip controller responsible for managing data traffic in the system motherboard.
4. HARDDISKHard disk is a data storage medium on a computer that consists of a collection of magnetic hard disks and spinning, as well as other electronic components. Hard disks use a flat dish called a platter, which on both sides is coated with a material that is designed to be able to store information magnetically. Platter-platter was prepared by punching holes in the center and arranged on a spindle. Platter rotates at very high speeds are controlled by the spindle motor which is connected to the spindle. Special literacy electromagnetic tool named head mounted on a slider and is used to store information in a disk or read. Slider mounted on the arm, all of which are connected mechanically to a single set and connected to the surface of the disc through a tool called the actuator. There was also the logic board regulate the activity of other components and communicates with a PC.
5. SOUND CARDThe sound card (Sound Card) is a computer hardware that is used to make a sound and voice recording. At first, the sound card of a computer is only as a complement. But now, the sound card is required on each computer. Judging from the way of installation, sound card divisible by 3:

    
Onboard Sound Card, which is directly attached to the sound card on the computer motherboard.
    
Sound Card Offboard, the sound card installation in the slot ISA / PCI on the motherboard.
    
On average, now using External PCISoundcard, use the sound card is connected to the computer via an external port such as USB or FireWire.
One example of the sound card market is fairly successful in Indonesia is a Sound Blaster, Creative Labs.To play MIDI music, at first using FM Synthesis technology, but now it is used for business Wavetable Synthesis While digital audio, which was once just a 2-channel (stereo), now using 4 or more voice channels (Surround). Quality also has an increase of 8 bit, then 16 bit, and now it is 24 bit and even 32 bit.

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