System Unit

Expansion card:
Also known as an add-on card, internal card or interface adapter, an expansion card is an electronic board or card added in a desktop computer or other non-portable computer to give that computer a new ability, such as the ability to connect to another computer using a network cable. Examples like video card,modem,video capture card.

Network interface card:

Specially desinged for certain type of netwotk such as protocol,network,and media even some of it can do the multiple task work

Cache memory:

It is an extremely fast bulit in memory inside the computer program system or located next to it on separate chips


Plug&play:

In computing, plug and play is a term used to describe the characteristic or device specification, which facilitates the discovery of a hardware component in a system, without the need for physical device configuration, or user intervention in resolving resource conflicts.Plug and play also refers to both the traditional boot-time assignment of device resources and driver identification.


Sockets:

in computing area:-

Internet socket, an end-point in the IP networking protocol
CPU socket,, the connector on a computer's motherboard for the CPU
Unix doamin socket, an end-point in local inter-process communication

Chips(computer chips):

A 3D cube of chips, using bare chips mounted one over the other with spacers in between. As this technology matures, it is expected that up to 100 chips can be used in one cube.

Slots:

An opening in a computer where a ciruit board can be inserted to add new capabilities to the computer.

Buslines:

A set of parallel wires in a computer to which the central processing unit and all input-output units are connected. Each separate wire carries the electric current representing 1 bit. Buses interconnect the parts of the computer that communicate with each other, such as a video card or modem.

Serial port:

In computing, a serial port is a serial communication physical interface through which information transfers in or out one bit at a time . Throughout most of the history of personal computers, data transfer through serial ports connected the computer to devices such as terminals and various peripherals.

Parallel port:

A type of interface found on computers for connecting various programme.Also knowm as a printer port or Centronics port.

universal serial bus

Universal Serial Bus (USB) :

Universal Serial Bus (USB) is a set of connectivity specifications developed by Intel in collaboration with industry leaders. USB allows high-speed, easy connection of peripherals to a PC. When plugged in, everything configures automatically. USB is the most successful interconnect in the history of personal computing and has migrated into consumer electronics (CE) and mobile products.

Firewire port

It is a ports to forms a serial port that make use the firewire port technology to transfer data rapidly from one electronic device to another.