System Unit

RAM: By what it all means is that it's called random access memory for the longer version.It contains Data Access storage but in this century, it revenues the system of combined circuits that let stored data to be log on in any order with the worst case performance of actual time. RAM is regularly related with volatile types of memory.For example like; DRAM memory modules, where its stored information is lost if the power is detached and including most types of ROM and a type of flash memory called NOR-Flash. Therefore, the storage of the other memory devices can be access in another memory devices in a timed order.

CACHE: A component that transfers data storage to the prospect requests so that the data can be served faster it can replica the original values that is stored and the hardware implements for the temporary storage can be useful for the future. Cache can be found in web browsers,CPUs and web servers.   

ROM: Read-only memory (ROM), furthermore  it is acknowledged as firmware. When it is mass-produced ,it’s an incorporated circuit programmed with a full data. ROM chips are used not only in computers, but in most supplementary electronic items as well.It's a misnomer too, the memory inside can be erased and be installed at anytime.

FLASH MEMORY: Flash memory former known as a dense state storage device, meaning there are no moving parts,everything is electronic instead of mechanical.It will backup copies of files that live off of your systems and has a portable storage devices that use a type of electronic memory called flash memory may be the right solution. 

GRAPHIC CARD: The device installed in a computer that consists of a graphics processing unit designed to help process and display images, especially 3D graphics. Graphics cards help take the processing strain off the main processor and can contain their own memory to take the strain off the system RAM.

SOUND CARD: An expansion component used in computers to receive and send audio. Sound cards are configured and utilized with the help of a software application and a device driver. The sound card converts incoming digital audio data into analog audio so the speakers can play it.

NETWORK INTERFACE CARD: A device that allows computers to be joined together in a LAN or local area network. Networked computers communicate with each other using a given protocol or agreed-upon language for transmitting data packets between the different machines, known as nodes. The network interface card acts as the liaison for the machine to both send and receive data on the LAN. 





PLUG AND PLAY: A catchy phrase used to describe devices that work with a computer system as soon as they are connected. The user does not have to manually install drivers for the device or even tell the computer automatically recognizes the device, loads new drivers for the hardware if needed and begins to work with the newly connected device.











UNIVERSAL SERIAL BUS PORT: A standard cable connection interface on personal computers and consumer electronics. USB ports allow stand-alone electronic devices to be connected via cables to a computer. USB allows data to be transferred between devices. USB ports can also supply electric power across the cable to devices without their own power source.

SERIAL PORT: A socket on a computer used to connect a modem, data acquisition terminal or other device via a serial interface. Serial ports provide very slow speeds and have been superseded by USB and other faster interfaces for peripheral connections to desktop computers. Earlier PCs used the port for the mouse, like an earlier Machintoshes used it to attach a printer. 

PARALLEL PORT: A socket on a computer used to connect a printer or other device via a parallel interface. In the past, the parallel port was widely used for printers and occasionally for connecting other devices externally.

FIREWiRE PORT: This system is used for data storage devices and digital cameras;It is a high speed communication interface  and we all use it in digital things like audio and video.
Firewire (Apple) is the most recognizable firewire port and most used.









ETHERNET PORT: Ethernet is the most common type of connection computers use in a local area network ( LAN ). An ethernet port looks much like a regular phone jack but it is slightly wider. This port can be used to connect your computer to another computer, a local network or an external DSL or cable modem.



















HIGH DEFINITION MULTIMEDIA INTERFACE PORT: It is the industry supported, uncompressed, all digital/video interface. HDMI provides an interface between any audio/video source such as DVD player, A/V receiver and audio/video monitors such as digital television. HDMI is small, user-friendly interconnect that provides up to 5 Gbps of bandwidth to support high-definition video plus multichannal audio in single cable.