Computer hardware (computer hardware) is the physical components that make up an integrated system of Personal Computer (PC).
Typically these devices are assembled and largely incorporated into a computer case and others are outside the casing.
The hardware inside the casing generally consists of:
Motherboard (main board)
MotherboardMotherboard / mainboard is a key component to build a computer. Square-shaped board with slots to include other components. Its function is to connect all components of the PC. Other computer hardware are all attached directly to the motherboard slot or at least connected using a cable.
Central Processing Unit (CPU)
CPUBiasa also known as "processor" or "brain" of the computer. The function of this CPU is processing and process all calculations and commands that make the computer can be operated. Because the heat it generates, the CPU is always equipped with a fan and heat sink to reduce the temperature. In the latest CPU types, already equipped with a Graphic Processing Unit (GPU) that is integrated into the CPU, as processing graphics data.
Random Access Memory (RAM)
Random Access Memory (RAM) RAM serves as a transit point to provisional data for the operations being carried out by the CPU. RAM is volatile, meaning that this device does not store data permanently, just for the required operation only. RAM capacity on the PC that we often find quite diverse, ranging from 256 MB (megabytes) - 16 GB (GigaBytes).
Video Graphics Array (VGA)
CardVGA VGA card or graphics card serves as a link that allows the transmission of data between a PC and a graphical display device such as a monitor or projector. Most computers have a separate VGA as expansion cards installed on the motherboard slot. But there is also a computer that has an integrated VGA on the motherboard or on its CPU.
Hard Disk Drive (HDD)
Hard-disk DiskHard serves as primary data storage in a computer system. Operating systems, applications, and documents stored on the hard-disks. In the latest PC, there are also new hardware called Solid State Drive (SSD). Functions the same as the hard-disk, but offers data transfer speeds faster.
Power Supply Unit (PSU)
Power Supply UnitPower Supply serves as a converter and distributor of electrical energy from the power outlet (eg PLN) to the form of electrical energy that can be used to run the computer components inside the casing. Typically, this PSU is placed at the back of the casing.
Aside from computer hardware contained within the casing, there are also common components we see outside the casing:
Monitor
Monitor is called also screen or display. The function of the screen is to display video and graphical information generated from a computer via a tool called a graphics card (VGA Card). This monitor physical form similar to the television, television usually only capable of displaying graphical information with higher resolution size.
Keyboard and Mouse
Keyboard and mouse MouseKeyboard and serves as an input device to enter text commands, character, or move objects on a graphical interface to be processed by a computer. The size and shape of the tool is quite diverse, but its function is the same.
Beyond the components that we have already mentioned above, there are also computer hardware that not all computers have it:
Optical Disc Drive
Optical DriveOptical regular drive is also
known as a CD drive, DVD drive, or ODD. The function of this device is
to read and also save data to and from optical disc media such as CDs,
DVDs, or Blu-Ray Disc.
Uninterruptable Power Supply (UPS)
UPSSering referred to as a battery backup, UPS primary function is to store and provide power backup that will be used when the main power source goes out. Aside from being a power reserve, most UPS also serves as a "stabilizer" that regulates the flow of electricity to fit the needs.
Printer and Scanner
PrinterPrinter serves as a print output of electronic documents both text and graphics. At home computers typically use paper as the print media. While the scanner function is the inverse of the printer that scans the data input from the outside of the computer into electronic form that can be processed digitally.
Speaker
The function of the speaker as the output device is a computer-generated voice. In addition to the speakers, often we find people who use headphones / headset as the sound output device.
Sound Card (voice)
Function as a liaison between the computer and the audio output device such as speakers.
modem
This tool is used to connect a computer to the internet.
LAN Card
Function as a liaison computer in a network.
